How many grams of table salt are made from the synthesis reaction of chlorine gas and 400 grams of sodium metal?

Answers

Answer 1

The synthesis reaction of chlorine gas (Cl2) and sodium metal (Na) results in the formation of table salt, which is sodium chloride (NaCl). To determine the amount of sodium chloride produced, we need to consider the stoichiometry of the reaction.

To determine how many grams of table salt are made from the synthesis reaction of chlorine gas and 400 grams of sodium metal, follow these steps:

1. Write the balanced chemical equation for the reaction:
2Na + Cl2 = 2NaCl

2. Calculate the molar mass of sodium (Na) and table salt (NaCl):
Na = 22.99 g/mol
NaCl = 22.99 g/mol (Na) + 35.45 g/mol (Cl) = 58.44 g/mol

3. Calculate the moles of sodium metal:
moles of Na = 400 g/22.99 g/mol = 17.40 moles

4. According to the balanced equation, 2 moles of Na produce 2 moles of NaCl. Therefore, the moles of NaCl produced are the same as the moles of Na used:
moles of NaCl = 17.40 moles

5. Calculate the mass of NaCl produced:
mass of NaCl = moles of NaCl  molar mass of NaCl = 17.40 moles  58.44 g/mol = 1,016.26 g

Your answer: In the synthesis reaction of chlorine gas and 400 grams of sodium metal, 1,016.26 grams of table salt are produced.

Learn more about "table salt": https://brainly.com/question/24858516

#SPJ11


Related Questions

what is the major difference between the ice that Dr. Stewart is climbing and the ice that is close by?
Please help due today and if I don't pass, I don't graduate.

Answers

One potential difference between ice that Dr. Stewart is climbing and "normal" water ice could be the location or conditions in which it formed.

How to explain the difference

For example, glacier ice, which forms over many years from compacted snow, can have different properties than the ice that forms on a frozen lake or river. Similarly, ice formed in a cold laboratory setting might have different properties than ice formed under natural conditions.

Other factors that could impact the characteristics of ice include the presence of air bubbles, cracks or fissures, and the size and shape of ice crystals. Ice that has been subjected to pressure or other stresses can also exhibit unique features such as layers or bands.

Learn more about ice on

https://brainly.com/question/30192582

#SPJ1

A 255 liter volume of helium gas is at a pressure of 435 mm of Hg and has a temperature of 299 K. What is the volume of the same gas (in liters) at 655 mm of Hg and 199 K? Again, only enter your numerical answer here; no units! Always follow significant figure rules

Answers

The volume of the same gas is 320 L.

Use the combined gas law to solve for the final volume of the gas:

(P1V1/T1) = (P2V2/T2)

Substituting the given values, we get:

(435 mmHg)(255 L)/(299 K) = (655 mmHg)(V2)/(199 K)

Solving for V2, we get:

V2 = (435 mmHg)(255 L)/(299 K) x (199 K)/(655 mmHg)V2 = 320 L

Therefore, the volume of the gas at the new conditions is 320 L.

The combined gas law relates the pressure, volume, and temperature of a gas in a closed system. It states that the product of pressure and volume divided by the temperature is a constant for a given mass of gas in a closed system undergoing changes in pressure, volume, and temperature. Mathematically, the combined gas law can be represented as:

(P₁V₁)/T₁ = (P₂V₂)/T₂

Where P₁ and V₁ are the initial pressure and volume, T₁ is the initial temperature, P₂ and V₂ are the final pressure and volume, and T₂ is the final temperature. This equation is useful in predicting the behavior of gases when the conditions of pressure, volume, and temperature are changed. The combined gas law is a combination of Boyle's law, Charles's law, and Gay-Lussac's law, and it can be derived from the ideal gas law.

To learn more about combined gas law, here

https://brainly.com/question/30458409

#SPJ4

0. 063L solution of Ba(OH02 is neutralized by 0. 0234L of a 1. 52 M HNO3 solution. What is the concentration of the Ba(OH)2 solution

Answers

The concentration of the Ba(OH)₂ solution is 0.1 M.

To find the concentration of the Ba(OH)₂ solution, we can use the balanced equation for the neutralization reaction between Ba(OH)₂ and HNO₃:

Ba(OH)₂ + 2HNO₃ → Ba(NO₃)₂ + 2H₂O

From the equation, we can see that one mole of Ba(OH)₂ reacts with two moles of HNO₃. Therefore, the moles of HNO₃ used in the neutralization reaction can be calculated as follows:

moles of HNO₃ = 1.52 M × 0.0234 L = 0.035568 mol

Since the moles of HNO₃ is equal to the moles of Ba(OH)₂ in the reaction, we can calculate the concentration of the Ba(OH)₂ solution as follows:

concentration of Ba(OH)₂ = moles of Ba(OH)₂ / volume of Ba(OH)₂ solution

moles of Ba(OH)₂ = moles of HNO₃ / 2 = 0.035568 mol / 2 = 0.017784 mol

volume of Ba(OH)₂ solution = 0.063 L

concentration of Ba(OH)₂ = 0.017784 mol / 0.063 L ≈ 0.1 M

To know more about concentration, refer here:

https://brainly.com/question/30639206#

#SPJ11

A radiation of 2530 amstrong incidents on HI results in decomposition of 1. 85 × 10^-2 mole per 1000 cal of radiant energy. Calculate the quantum efficiency

Answers

The quantum efficiency (QE) of the radiation of 2530 amstrong incidents is approximately 3.47 x [tex]10^8[/tex].

We have,

Quantum efficiency (QE) is a measure of the number of molecules undergoing a specified reaction per photon absorbed.

In this case, you want to calculate the quantum efficiency based on the given data.

Quantum Efficiency (QE) is given by the formula:

QE = (Number of molecules decomposed) / (Number of photons absorbed)

Given:

Number of molecules decomposed = 1.85 × 10^-2 moles

Number of photons absorbed = Energy absorbed / Energy per photon

The energy of a photon (E) is given by Planck's equation:

E = hc / λ

Where:

h = Planck's constant = 6.626 × 10^-34 J·s

c = Speed of light = 3 × 10^8 m/s

λ = Wavelength of radiation = 2530 Å = 2530 × 10^-10 m

Calculate the energy per photon using the wavelength:

E = (6.626 × [tex]10^{-34}[/tex] J·s * 3 × [tex]10^8[/tex] m/s) / (2530 × [tex]10^{-10}[/tex] m)

= 0.007856 x [tex]10^{-34 + 8 + 10[/tex]

= 0.007856 x [tex]10^{-16}[/tex] J

Now, calculate the energy absorbed:

Energy absorbed = 1000 cal = 1000 * 4.184 J (since 1 cal = 4.184 J)

Number of photons absorbed = Energy absorbed / Energy per photon

Calculate the quantum efficiency using the given formula:

QE = (Number of molecules decomposed) / (Number of photons absorbed)

QE = (1.85 × [tex]10^{-2}[/tex] moles) / (Number of photons absorbed)

Substitute the value of the Number of photons absorbed:

QE = (1.85 × [tex]10^{-2}[/tex] moles) / [(1000 * 4.184 J) / (0.007856 x [tex]10^{-16}[/tex] J)]

QE = (1.85 × [tex]10^{-2}[/tex] moles) / (532586.56 x [tex]10^{16}[/tex] J)

QE = 0.000003474 x [tex]10^{14}[/tex]

QE ≈ 3474 × [tex]10^5[/tex]

QE = 3.47 x [tex]10^8[/tex]

Therefore,

The quantum efficiency (QE) is approximately 3.47 x [tex]10^8[/tex].

Learn more about quantum efficiency here:

https://brainly.com/question/2187279

#SPJ12

Please help



Boiling off a pot of water


A pot containing 500 g of water is brought to a boil.


The latent heat of vaporization is for water HΔv =2260 kJ/kg



How much heat will it take to completely boil the water (turn it all to steam).



Use the equation q = mHΔv

Answers

The equation q = mHΔv is used to calculate the amount of heat required to vaporize a certain amount of substance. In this case, the substance is water and the latent heat of vaporization is 2260 kJ/kg.

The variable q represents the amount of heat required to vaporize the substance, which is measured in joules (J) or kilojoules (kJ). The variable m represents the mass of the substance being vaporized, which is measured in kilograms (kg). Finally, the variable HΔv represents the latent heat of vaporization, which is a property of the substance and is measured in joules per kilogram (J/kg).

When water is heated, it will begin to evaporate, or turn into a gas. This process requires energy in the form of heat. The amount of heat required to vaporize a certain amount of water can be calculated using the equation q = mHΔv. For example, if we want to vaporize 1 kg of water, we can calculate the amount of heat required by multiplying the mass by the latent heat of vaporization:

q = 1 kg x 2260 kJ/kg
q = 2260 kJ

Therefore, it would require 2260 kJ of heat to vaporize 1 kg of water.

In summary, the equation q = mHΔv is a useful tool for calculating the amount of heat required to vaporize a substance, such as water. The latent heat of vaporization is a property of the substance and is required in order to make these calculations.

To know more about vaporization refer here

https://brainly.com/question/14578189#

#SPJ11

Help what’s the answer?

Answers

The balanced chemical equation is as follows;

3MnO₂ + 4Al → 2Al₂O₃ + 3Mn

20.52 grams will react with 49.7 grams of MnO₂

How to balance a chemical reaction?

A chemical equation is said to be balanced when the number of atoms of each element on both sides of the equation are the same.

According to this question, manganese oxide reacts with aluminum to produce aluminum oxide and manganese. The balanced equation is given above.

49.7 grams of MnO₂ is equivalent to 0.57 moles

If 3 moles of MnO₂ reacts with 4moles of Al, then 0.57 moles of MnO₂ will react with 0.76 moles of Al.

0.76 moles of Al is equivalent to 20.52 grams of Al.

Learn more about balanced equation at: https://brainly.com/question/28294176

#SPJ1

harber process of manufacturing ammonia​

Answers

The Haber process involves the following steps:

Preparation of reactants; Compression of gases; Mixing of gases; Reaction; Separation of ammonia; Separation of ammonia

The Haber process is a method used to manufacture ammonia (NH3) from nitrogen gas (N2) and hydrogen gas (H2). The process is named after its inventor, German chemist Fritz Haber, who developed the process in the early 20th century.

The Haber process involves the following steps

Preparation of reactants: Nitrogen gas and hydrogen gas are prepared in pure form. Nitrogen is obtained from the air through the process of fractional distillation, while hydrogen is obtained from natural gas or other sources.Compression of gases: The nitrogen and hydrogen gases are compressed separately to increase their pressure. The high pressure helps to force the gases to react.Mixing of gases: The compressed nitrogen and hydrogen gases are mixed together in a ratio of 1:3, which is the stoichiometric ratio for the production of ammonia.Reaction: The mixed gases are then passed over an iron catalyst at a temperature of around 450-500°C and a pressure of around 200-250 atmospheres. This causes the nitrogen and hydrogen to react, forming ammonia.Separation of ammonia: The ammonia produced in the reaction is then cooled and condensed into a liquid form. The liquid ammonia is separated from any unreacted nitrogen or hydrogen gases and purified.

The Haber process is an important industrial process for the production of ammonia, which is a vital ingredient in the production of fertilizers and many other chemical compounds.

For more question on Haber process click on

https://brainly.com/question/21867752

#SPJ11

PLEASE HELP
Andrea plans to go fishing in the morning, so she checks the weather forecast. The forecast shows a high-pressure area forming near her fishing spot. Using the weather data below, predict the possible weather conditions for Andrea’s trip.

Time (a.m.) Temperature (°C) Pressure (mb)
7.00 14 995
8.00 14 1001
9.00 14 1113
10.00 15 1120
A.
cloudy skies with minimal precipitation
B.
clear skies with minimal precipitation
C.
cloudy skies with moderate precipitation
D.
clear skies with heavy precipitation

Answers

B Answer:

Explanation:

Higher, 1020 mb +, rising pressure and temp are associated with clear skies and low precipitation

Based on the weather data provided, it is likely that Andrea will experience clear skies with minimal precipitation during her fishing trip.

This is because the temperature remains fairly consistent throughout the morning, indicating that there is no significant weather front moving through the area. Additionally, the pressure readings show a high-pressure area forming, which typically indicates stable weather conditions with clear skies and little chance of precipitation.

Therefore, the answer is option B: clear skies with minimal precipitation.

How many grams of chlorine would exert a pressure of 610 torr in a 3. 26-liter container at standard temperature? 4. 25gCL

Answers

3.86 grams of chlorine would exert a pressure of 610 torr in a 3.26-liter container at standard temperature.

To calculate the number of grams of chlorine required to exert a pressure of 610 torr in a 3.26-liter container at standard temperature, we need to use the ideal gas law equation: PV = nRT.

Where,

P = pressure = 610 torr

V = volume = 3.26 L

n = number of moles

R = gas constant = 0.0821 Latm/(molK) (standard value)

T = temperature = 273 K (standard temperature)

n = PV ÷ RT

Substituting the given values, we get:

n = (610 torr × 3.26 L) ÷ (0.0821 Latm/(molK) × 273 K)

n = 0.109 mol

Now, to convert moles to grams, we need to use the molar mass of chlorine, which is 35.45 g/mol.

Thus, number of grams of chlorine required is:

0.109 mol × 35.45 g/mol = 3.86 g

To learn more about chlorine follow the link:

https://brainly.com/question/7585012

#SPJ4

In order to produce 972 kJ of heat, how many grams of H2 must react?


2 H2 (g) + O2 (g) → 2 H20 (g) + 243 kJ

Answers

16.128 grams of hydrogen gas would need to react in order to produce 972 kJ of heat energy.

So, first, we can calculate the amount of heat energy released per mole of [tex]H_2[/tex] reacted:

243 kJ of heat / 2 moles of [tex]H_2[/tex] = 121.5 kJ/mol of [tex]H_2[/tex]

We can use the following equation to calculate the amount of hydrogen gas required:

Amount of [tex]H_2[/tex]  = Energy released / Heat of reaction per mole of [tex]H_2[/tex]

Amount of [tex]H_2[/tex] = 972 kJ / 121.5 kJ/mol = 8 moles of [tex]H_2[/tex]

Finally, we can calculate the mass of [tex]H_2[/tex] required using its molar mass:

Mass of [tex]H_2[/tex] = Number of moles of[tex]H_2[/tex]x Molar mass of [tex]H_2[/tex]

Mass of [tex]H_2[/tex] = 8 moles x 2.016 g/mol = 16.128 g of [tex]H_2[/tex]

To know more about hydrogen gas, here

brainly.com/question/29802537

#SPJ4

Which molecule has the shortest carbon-oxygen bond length?

A. CH3COOH
B. CH3CH2OH
C. CO₂
D. CO

Answers

i think it would be D. CO
CO has the shortest C-O bond length

What does the NaCl + Br₂ represent in the reaction?
NaBr + Cl₂ → NaCl + Br₂
A. Reactants
B. Products
C. Yields Br
D. States of Matter​

Answers

B. products. (NaCl is the salt formed and Br2 is given off during the reaction).

The valencies of metals X,Y and Z are 1,2 and 3 respectively. What are the formulae of their:. A)hydroxides? b)sulphates? c) carbonates? d) hydrogen carbonates? e)nitrates? f)phosphates?​

Answers

The formulae of the hydroxides are: X(OH), Y(OH)₂, and Z(OH)₃.

The formulae of the sulphates are: XSO₄, YSO₄, and Z(SO₄)₂.

The formulae of the carbonates are: XCO₃, YCO₃, and Z(CO₃)₂.

The formulae of the hydrogen carbonates are: X(HCO₃), Y(HCO₃)₂, and Z(HCO₃)₃.

The formulae of the nitrates are: X(NO₃), Y(NO₃)₂, and Z(NO₃)₃.

The formulae of the phosphates are: X(PO₄), Y(PO₄)₂, and Z(PO₄)₃.

The valency of a metal tells us how many electrons it can lose or gain in order to form an ion. Using the valencies of metals X, Y, and Z, we can determine the formulae of their compounds with different anions. In each case, we use the appropriate valency of the metal and the valency of the anion to balance the charges of the compound.

For example, in the case of hydroxides, the valency of metal X is 1, which means it can combine with one hydroxide ion (OH⁻) to form a neutral compound, X(OH). Similarly, for metal Y with valency 2, it requires two hydroxide ions to form a neutral compound, Y(OH)₂.

To know more about the Metal, here

https://brainly.com/question/23442676

#SPJ4

What volume of nitrogen reacts with 33. 6 litres of oxygen to produce nitrogen

dioxide

Answers

The balanced chemical equation for the reaction of nitrogen and oxygen to produce nitrogen dioxide is:

2NO + O2 → 2NO2

According to the equation, 1 mole of nitrogen reacts with 0.5 moles of oxygen to produce 1 mole of nitrogen dioxide.

To determine the volume of nitrogen required to react with 33.6 L of oxygen, we need to convert the volume of oxygen to moles, and then use the mole ratio to find the moles of nitrogen required, and finally convert to volume of nitrogen.

Using the ideal gas law, we can convert the given volume of oxygen to moles:

n(O2) = PV/RT

where P is the pressure, V is the volume, R is the gas constant, and T is the temperature in Kelvin.

Assuming standard temperature and pressure (STP) conditions of 1 atm and 273 K, we get:

n(O2) = (1 atm) × (33.6 L) / [(0.0821 L·atm/mol·K) × (273 K)] = 1.37 moles of O2

Using the mole ratio from the balanced chemical equation, we know that 2 moles of NO react with 1 mole of O2. So the number of moles of NO required to react with 1.37 moles of O2 is:

n(NO) = 2 × (1.37 moles of O2) = 2.74 moles of NO

Finally, we can convert the moles of NO to volume using the ideal gas law:

V(NO) = n(NO)RT/P

Assuming STP conditions again, we get:

V(NO) = (2.74 mol) × (0.0821 L·atm/mol·K) × (273 K) / (1 atm) ≈ 60.4 L

Therefore, approximately 60.4 L of nitrogen would be required to react with 33.6 L of oxygen to produce nitrogen dioxide, under the given conditions.

To know more about chemical refer here

https://brainly.com/question/29240183#

#SPJ11

A balloon has a volume of 3. 7 Lat a pressure of 1. 1 atm and a temperature of 30 °C. If


the balloon is submerged in water to a depth where the pressure is 4. 7 atm and the


temperature is 15 °C, what will its volume be in L?

Answers

When the balloon is submerged in water at a depth where the pressure is 4.7 atm and the temperature is 15 °C, its volume will be approximately 0.995 L.

From the ideal gas equation, we can use the combined gas law formula, which is:

(P1 × V1) / T1 = (P2 × V2) / T2

Here, P1 = 1.1 atm (initial pressure), V1 = 3.7 L (initial volume), T1 = 30 °C (initial temperature), P2 = 4.7 atm (final pressure), and T2 = 15 °C (final temperature). We need to find V2 (final volume).

First, convert the temperatures to Kelvin by adding 273.15:

T1 = 30 + 273.15 = 303.15 K

T2 = 15 + 273.15 = 288.15 K

Now, plug in the values into the combined gas law formula and solve for V2:

        (P1 × V1) / T1 = (P2 × V2) / T2

(1.1 × 3.7) / 303.15 = (4.7 × V2) / 288.15

    (4.07) / 303.15 = (4.7 × V2) / 288.15

Now, solve for V2:

V2 = (4.07 × 288.15) / (303.15 × 4.7)

V2 ≈ 0.995 L

To know more about the ideal gas equation, click below.

https://brainly.com/question/20897725

#SPJ11

An unknown mass of silver is heated to a temp of 98. 75c and then placed into a calorimeter containing 250g of water st 6. 5c. The silver and the water reach thermal equilibrium at 23. 35c. What is the mass of the silver sample?

Answers

The mass of the silver sample is approximately 77.9 grams.

To solve this problem, we can utilize the equation for heat transfer:

q = m * c * ΔT

where q represents the heat transferred, m is the mass of the substance, c is the specific heat capacity, and ΔT is the change in temperature.

Initially, we calculate the heat transferred from the silver to the water:

q silver = m silver * c silver * ΔT silver

q water = m water * c water * ΔT water

For thermal equilibrium between the silver and water, we equate the two equations as they reach the same temperature:

q silver = q water

m silver * c silver * ΔT silver = m water * c water * ΔT water

Rearranging the equation allows us to solve for the mass of the silver:

m silver = (m water * c water * ΔT water) / (c silver * ΔT silver)

Substituting the given values:

m silver = (250g * 4.184 J/g°C * (23.35°C - 6.5°C)) / (0.235 J/g°C * (98.75°C - 23.35°C))

As a result:

m silver = 77.9 g

Thus, the mass of the silver sample is approximately 77.9 grams.

Know more about Calorimeter here:

https://brainly.com/question/4802333

#SPJ11

write the net ionic equation for the equilibrium that is established when sodium cyanide is dissolved in water. This solutions is: (acid, base, neutral)

Answers

The net ionic equation for the equilibrium that is established when sodium cyanide (NaCN) is dissolved in water is:

NaCN + H2O ⇌ CN- + Na+ + H2O

In this equation, the cyanide ion (CN-) is produced by the dissociation of NaCN in water. The sodium ion (Na+) and water (H2O) are spectator ions and do not participate in the reaction. Therefore, they are not included in the net ionic equation.

This solution is basic because the cyanide ion is a weak base and can hydrolyze water to produce hydroxide ions (OH-) according to the following reaction:

CN- + H2O ⇌ HCN + OH-

The equilibrium constant for this reaction is relatively small, but it is enough to make the solution basic.

Visit here to learn more about ionic equation brainly.com/question/29299745

#SPJ11

Imagine a piston with an external pressure of 1 bar that contains liquid water, water vapor, and nitrogen gas. the piston is in thermal contact with a large reservoir held at 270.15 k. initially the partial pressure of water vapor in the piston is 489 pa; nothing changes for a long time. at some point the water crystallizes and the system comes to a new equilibrium; the new partial pressure of water vapor in the piston is 475 pa. calculate the difference in the chemical potential for liquid and crystalline water at 270.15 k. (to think about: does the sign of your answer make sense

Answers

The difference in the chemical potential for liquid and crystalline water at 270.15 K is -0.97 J/mol.


1. Convert given pressures to atm: initial partial pressure of water vapor (P1) = 489 Pa / 101325 Pa/atm = 0.00482 atm, and new partial pressure (P2) = 475 Pa / 101325 Pa/atm = 0.00469 atm.


2. Use the Clausius-Clapeyron equation: ln(P2/P1) = -(ΔH_sub/R)(1/T2 - 1/T1), where ΔH_sub is the enthalpy of sublimation, R is the gas constant, and T1 and T2 are the initial and final temperatures, both equal to 270.15 K.


3. Rearrange the equation to solve for ΔH_sub: ΔH_sub = R * (ln(P2/P1))/(1/T2 - 1/T1), and substitute the values: ΔH_sub = 8.314 J/mol K * (ln(0.00469/0.00482))/(0 - 0) = -0.97 J/mol.


4. The negative sign makes sense as the system moves to a new equilibrium with a lower chemical potential for crystalline water, indicating a more stable phase.

To know more about Clausius-Clapeyron equation click on below link:

https://brainly.com/question/29409537#

#SPJ11

Compute the mass of KI needed to prepare 500 mL of a 0. 750 M solution

Answers

The mass of KI needed to prepare 500 mL of a 0. 750 M solution is 62.25 grams

To compute the mass of KI needed to prepare 500 mL of a 0.750 M solution, use the formula:

Molarity (M) = moles of solute / volume of solution in liters

First, convert the volume to liters: 500 mL = 0.5 L

Next, rearrange the formula to find the moles of solute:

moles of solute = Molarity × volume of solution in liters
moles of KI = 0.750 M × 0.5 L
moles of KI = 0.375 moles

Now, find the molar mass of KI (Potassium Iodide):
K (Potassium) = 39.10 g/mol
I (Iodine) = 126.90 g/mol
Molar mass of KI = 39.10 g/mol + 126.90 g/mol = 166.00 g/mol

Finally, calculate the mass of KI needed:

mass of KI = moles of KI × molar mass of KI
mass of KI = 0.375 moles × 166.00 g/mol
mass of KI = 62.25 g

Therefore, you will need 62.25 grams of KI to prepare 500 mL of a 0.750 M solution.

Know more about Molarity here:

https://brainly.com/question/8732513

#SPJ11

Consider the following scenario


In a muddy lake environment some fish have brown scales. Most fish, however have silver scales Predators have a harder time seeing the fish with brown scales



Which term best describes the brown scales?




advantageous trait


new mutation


predominant phenotype


inactivated gene

Answers

An advantageous trait describes the brown scales in fish living in a muddy lake environment, providing them with a better chance of survival and reproductive success by blending in with their surroundings and making it harder for predators to see them.

The term that best describes the brown scales in this scenario is advantageous trait. An advantageous trait is a characteristic that provides an organism with a greater chance of survival and reproductive success in a specific environment. In this case, the brown scales provide an advantage to the fish living in the muddy lake environment as they blend in better with their surroundings, making it harder for predators to see them. As a result, fish with brown scales are more likely to survive and reproduce, passing on this trait to their offspring. The silver scales are the predominant phenotype, meaning they are the most common physical expression of the fish's genotype. The brown scales may have arisen through a new mutation, but their persistence in the population suggests they have become a part of the fish's genetic makeup. There is no indication that an inactivated gene is responsible for the brown scales.

Know more about predators here:

https://brainly.com/question/28871161

#SPJ11

Determine the amount of heat required to convert 46. 0 g of ethanol at 25°c to the vapor phase at 78°c. Based on the melting and boiling points, ethanol is a liquid at 25°c. Consider the heating curve when organizing your thoughts and answering the question. Use the information about ethanol ch3ch2oh given in the table below.

Answers

The amount of heat required to convert 46.0 g of ethanol at 25° C to vapor phase is ≅ 44.2 KJ total heat .

Using the mass , evaluating the moles of ethanol :

                              46.0 g × [tex]\frac{1 Mol}{46.07 g}[/tex] = 0.998 mol

                                        ≅ 1.0 mol

The heat required to convert 46.0 g ethanol from 25° C at 78° C is evaluated :

                                     q₁ = m[tex]C_{liquid }[/tex]ΔT

                                   = 46.0 g × [tex]\frac{2.3 J}{g. K}[/tex] × 78° C - 25°C

                                 =     5607.47J × 1 KJ /1000 J

                                           = 5.607 KJ

So, the heat required in conversion of 1.0 mol of ethanol at 78 ° C  to 1.0 mol ethanol vapour is expressed as :

                           q₂ = moles × Δ[tex]H_{vap}[/tex]

                            = 1.0 mol × 38.56 KJ /mol

                                = 38.56 kJ/ mol

The total heat requirement conversion of 46 .0 g of ethanol at 25° C to the vapour state at 78° C :

                           Total heat = q₁ + q₂

                                         = 5.607 KJ + 38.56 KJ

                                            = 44.167 KJ

                                        ≅ 44.2 KJ

Vapour phase :

Fume alludes to a gas stage at a temperature where a similar substance can likewise exist in the fluid or strong state, beneath the basic temperature of the substance. As a result of their tendency to be volatile, liquids will enter the vapor phase when the temperature is raised sufficiently. At the specified temperature, a liquid is considered to be volatile if it exhibits a significant vapor pressure.

How does vapour phase transfer work?

Transferring a substance from a vapor to a solid by desorbing it using a desorbent or carrier gas and passing the vapor sample through a stationary phase (such as silica particles).

Incomplete question :

Determine the amount of heat required to convert 46. 0 g of ethanol at 25°c to the vapor phase at 78°c. Based on the melting and boiling points, ethanol is a liquid at 25°c. Consider the heating curve when organizing your thoughts and answering the question. Use the information about ethanol CH₃CH₂OH given in the table below.

Use the following information about ethanol CH₃CH₂OH.

Tmelt = –114°C

Tboil = 78°C

∆Hfus = 5.02 kJ/mol

∆Hvap = 38.56 kJ/mol

C solid = 0.97 J/g-K

C liquid = 2.3 J/g-K

Learn more about Vapour phase :

brainly.com/question/28303854

#SPJ4

10. When the palms of the hands are rubbed together, kinetic energy is changed to ​

Answers

Answer: Friction causes kinetic energy (rubbing your hands together) to convert to heat energy.

Explanation:

Fill in the missing symbol in this nuclear chemical equation

Answers

The question does not provide a specific nuclear chemical equation to work with, so it is difficult to provide a direct answer. However, I can provide some general information about nuclear chemical equations.

Nuclear chemical equations are used to represent nuclear reactions. These reactions involve changes in the nucleus of an atom, typically involving the addition or removal of protons and/or neutrons. Unlike chemical reactions, which involve the sharing or transfer of electrons, nuclear reactions involve changes in the core of the atom.

A typical nuclear chemical equation includes a reactant on the left side of the equation and a product on the right side. The reactant and product are both represented by chemical symbols, such as H for hydrogen or O for oxygen. The number of protons and neutrons in the reactant and product may differ, indicating a change in the nucleus.

In some cases, the nuclear chemical equation may be missing a symbol. This could indicate that the product is unknown or has not been determined. It is also possible that the missing symbol represents a hypothetical or theoretical product, rather than an actual substance.

In summary, nuclear chemical equations are used to represent nuclear reactions, which involve changes in the nucleus of an atom. The equations include reactants and products represented by chemical symbols, and may occasionally include missing symbols indicating an unknown or theoretical product.

To know more about chemical equation refer here

https://brainly.com/question/30087623#

#SPJ11

What is the freezing point of a solution of 0. 300 mol of lithium bromide in 525 mL of water?

Answers

The freezing point of the lithium bromide solution is approximately -1.06°C.

To determine the freezing point of the solution, we need to use the freezing point depression formula:

ΔTf = Kf * molality

where ΔTf is the freezing point depression, Kf is the freezing point depression constant (which depends on the solvent), and molality is the concentration of the solution in mol/kg.

First, we need to calculate the molality of the solution:

molality = moles of solute / mass of solvent (in kg)

The mass of 525 mL of water is:

mass = volume * density = 525 mL * 1 g/mL = 525 g

The number of moles of lithium bromide is:

moles of LiBr = 0.300 mol

Therefore, the molality of the solution is:

molality = 0.300 mol / 0.525 kg = 0.571 mol/kg

The freezing point depression constant for water is 1.86 °C/m. Therefore, the freezing point depression is:

ΔTf = 1.86 °C/m * 0.571 mol/kg = 1.06306 °C

Finally, to find the freezing point of the solution, we need to subtract the freezing point depression from the freezing point of pure water (0°C):

Freezing point = 0°C - 1.06306°C = -1.06306°C

Therefore, the freezing point of the lithium bromide solution is approximately -1.06°C.

To know more about freezing point refer to-

https://brainly.com/question/3121416

#SPJ11

Determine which of the substrates will and will not react with naome in an sn2 reaction to form an appreciable amount of product.

Answers

The substrates that will react are CH₃CH₂CH₂Br and CH₃CH₂CH₂CH₂Br  and (CH₃)₃CNH₂ and CH₃CH₂OH will not react with naome in an sn2 reaction to form an appreciable amount of product.

Based on the Sn2 reaction mechanism, substrates with good leaving groups and low steric hindrance are more likely to react with nucleophiles like NaOMe.

Therefore, the substrates CH₃CH₂Br, (CH₃)₂CHBr, CH₃CH₂I, and (CH₃)₃CBr are expected to react with NaOMe to form appreciable amounts of product. On the other hand, substrates with poor leaving groups or high steric hindrance are less likely to undergo Sn2 reactions.

Therefore, the substrates (CH₃)₃CNH₂ and CH₃CH₂OH are not expected to react with NaOMe to form appreciable amounts of product. Finally, CH₃CH₂CH₂Br and CH₃CH₂CH₂CH₂Br may react with NaOMe, but to a lesser extent due to their higher steric hindrance.

To know more about the Sn2 reaction mechanism refer here :

https://brainly.com/question/31472916#

#SPJ11

Complete question :

Determine which of the substrates will and will not react with NaOMe in an Sy2 reaction to form an appreciable amount of product. Substrate will react Substrate will NOT react Answer Bank CH,CH.CH,BE (CH),CBE (CH), CHRE CH, CH,CH,NH, (CH),CCH,BE CH,CH.CH, OH

Sucrose has the molecular formula
c12h22011.
if a sucrose sample contains 3.6 x 1024
atoms of carbon, how many molecules of
sucrose are present in the sample?
[?] x 10[?]molecules c12h22011

Answers

In this sample there are 1.51 x 10^24 molecules of sucrose present in it.

To determine the number of molecules of sucrose present in the sample, we need to first calculate the number of moles of carbon present in the sample.

The molecular formula of sucrose (C12H22O11) contains 12 carbon atoms.

So, 3.6 x 10^24 atoms of carbon is equal to 3.6 x 1024/12 = 3 x 1023 moles of carbon.

Now, we can use the Avogadro's number (6.022 x 10^23 molecules per mole) to convert the number of moles of carbon to the number of molecules of sucrose:

Number of molecules of sucrose = 3 x 10^23 x (1 molecule of sucrose / 12 molecules of carbon) x (6.022 x 10^23 molecules per mole)

Number of molecules of sucrose = 1.51 x 10^24 molecules

Therefore, there are 1.51 x 10^24 molecules of sucrose present in the sample.

Know more about Avogadro's Number here:

https://brainly.com/question/23944317

#SPJ11

4.


The student wants to investigate how sound waves from the straw horn interact with different


materials. Which wave property should be tested and which method should be used to test it?


A. Wave property: absorption


Method: playing the straw horn in a room with hard surfaces and a room with soft


surfaces


B. Wave property: absorption


Method: making several sounds from straws of different lengths


C. Wave property: pitch


Method: playing the straw horn a room with hard surfaces and a room with soft


surfaces


D. Wave property: pitch


Method: making several sounds from straws of different lengths

Answers

The wave property that should be tested in this experiment is absorption, which refers to the extent to which a material can absorb sound waves. The correct answer is option a.

By testing how different materials interact with sound waves from the straw horn, the student can gain insight into the properties of those materials and their ability to absorb sound.

A. Wave property: absorption

Method: playing the straw horn in a room with hard surfaces and a room with soft surfaces

To test this property, the student should play the straw horn in a room with hard surfaces, such as walls and floors made of concrete or tile, and a room with soft surfaces, such as walls and floors made of carpet or drapes.

By comparing the sound produced in each room, the student can observe how the sound waves interact with different materials and how effectively each material absorbs the sound.

This method allows the student to investigate how different materials absorb sound waves and how this affects the sound produced by the straw horn. This information can be valuable in understanding how sound travels in different environments and how to optimize sound quality in different settings.

The correct answer is option a.

To know more about wave property refer to-

https://brainly.com/question/3381481

#SPJ11

use a sheet of paper to answer the following question. take a picture of your answers and attach to this assignment. treatment of pentanedioic (glutaric) anhydride with ammonia at elevated temperature leads to a compound of molecular formula c5h7no2. what is the structure of this product? [hint: you need to think about the reactivity not only of acid anhydrides but also of amides and carboxylic acids]

Answers

The structure of product is shown.

When pentanedioic (glutaric) anhydride reacts with ammonia at high temperature, it undergoes an amide formation reaction to produce a compound with the molecular formula C₅H₇NO₂. The amide formation reaction involves the nucleophilic attack of the ammonia molecule on one of the carbonyl carbon atoms of the anhydride, leading to the formation of an intermediate product called an amide.

This amide then undergoes further reactions to form the final product with the given molecular formula. The presence of both carboxylic acid and amide functional groups in the molecule indicates that it contains both the original anhydride and the product of its reaction with ammonia.

To know more about ammonia, here

brainly.com/question/15719562
#SPJ4

A solution of potassium hydroxide reacts completely with a solution of nitric acid. What solid mixture, what will remain after the water dissolves?.

Answers

A solution of potassium hydroxide reacts completely with a solution of nitric acid. Potassium nitrate will remain after the water dissolves in solid mixture.

What is a solid mixture?

This kind of mixture consists of two or more solids. Alloys are what are used when the solids are made of metals. Sand and sugar, stainless steel, etc. are a few examples of solid-solid combinations.

2KOH(aq) + HNO₃(aq) → KNO₃(aq) + 2H₂O(l)

When a solution of potassium hydroxide (KOH) reacts completely with a solution of nitric acid (HNO₃), potassium nitrate (KNO₃) is formed in aqueous form, along with water (H₂O). The solid mixture that will remain after the water evaporates is potassium nitrate (KNO₃).

To know more about solid mixture from the given link:

https://brainly.com/question/14331104

#SPJ4

Find the number of grams of zinc (Zn) metal that will completely react with 730


grams of hydrochloric acid (HCl) to produce zinc chloride (ZnCl2) and hydrogen gas


(H2).



Write the balanced chemical equation.


Use coefficients from balanced equation to determine mole ratio

Answers

654 grams of Zn metal will completely react with 730 grams of HCl


The balanced chemical equation for this reaction is:
Zn + 2HCl → ZnCl2 + H2

From the equation, we can see that for every 1 mole of Zn, 2 moles of HCl are required for a complete reaction. This means the mole ratio of Zn to HCl is 1:2.

To determine the number of moles of HCl used, we need to convert the given mass of HCl to moles. The molar mass of HCl is 36.5 g/mol, so:

730 g HCl x (1 mol HCl/36.5 g HCl) = 20 moles HCl

Using the mole ratio from the balanced equation, we can determine the number of moles of Zn required:

20 moles HCl x (1 mol Zn/2 mol HCl) = 10 moles Zn

Finally, we can convert the number of moles of Zn to grams using its molar mass of 65.4 g/mol:

10 moles Zn x (65.4 g Zn/mol) = 654 grams of Zn

Therefore, 654 grams of Zn metal will completely react with 730 grams of HCl to produce ZnCl2 and H2.

To know more about Balanced Equation:

https://brainly.com/question/11904811

#SPJ11

Other Questions
Graph y=4x9y, equals, 4, x, minus, 9. 2. A particular ostrich runs 40 miles per hour. Select the animals who run at a faster unit rate per hour than theostrich. Mark all that apply.A. O giraffe: 96 miles in 3 hoursB. O elk: 90 miles in 2 hoursc. O lion: 150 miles in 3 hoursD. O squirrel: 36 miles in 3 hours Consider the following. u = (5, -9, -5), v = (-7, -4, 3) (a) Find the projection of u onto v Question 1 of 10Which of these European artist made brushwork an important part of hispainting instead of something to be hidden?OA. douard ManetOB. Auguste RenoirOC. Gustave CourbetOD. Claude MonetSUBMIT A teacher conducts a survey of 50 randomly selected 6th grade and 50 randomly selected 7th grade students. The survey asks the students about the type of books they like to read. The table shows the number of students who selected each type of book Explain the principles of electromagnetism (discuss permeability, reluctance, and magnetomotive force. Describe a basic electromagnet. Also discuss how current is induced in a conductor. What are some applications that use electromagnets? When oxygen accepts electrons, water is produced as a byproduct. Refer to FIGURE 2.2 based on inclined strata. The landform below A B Identify slopes B and C respectively. The correct pathway air flows through the respiratory system is. A local amusement park found that if the admission was $7, about 1000 customers per day were admitted. When the admission was dropped to $6, the park had about 1200 customers per day. Assuming a linear demand function, determine the admission price that will yield maximum revenue. Use the picture to help. Will brainlist.What occupations can you not expect to see in the negative projected growth area? WhyWhat occupations did you not expect to see in the high projected growth area, why? How much heat, in joules, would be required to raise the temperature of 450 g ofAluminum (c Al = 0.21 cal/g o C) from 19.5 o C to 31.2 o C? Identify three changes in sonnys life and big creek high school at the beginning of the 1959-1960 school year. which one do you think has the most impact on sonny? 4. Which of the following has the best price per unit?Brand A $5.00 for 2Brand C $7.00 for 7Brand B $6.00 for 3Brand C $8.00 for 3 Identify an independent variable in the researchers' experiment. Justify the use of multiple trees for each ground cover treatment. Describe the concentration of anthocyanins relative to flavonoids in apples grown with the reflective ground cover. Calculate the concentration of flavonoids in apples grown with reflective ground cover relative to the concentration of flavonoids in apples grown without reflective ground cove Romeo and Juliet apparently fall in love at first sight. When do they find out that they are members of the enemy families? Who tells them?I need to this before Monday Please help asap!! the image is attached, 35 points!! Briefly explain ONE way Martin Luther Kings point of view compares to President Nixons point of view regarding United States involvement in the Vietnam War The equation, with a restriction on x, is the terminal side of an angle theta in standard position. 5x + y = 0, x 0 Give the exact values of the six trigonometric functions of theta. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. A. sin theta = (Simplify your answer. Use integers or fractions for any numbers in the expression. Type an exact answer, using radicals as needed. Rationalize all denominators.) B. The function is undefined. Given the sequence an = n^7/n^4The sequence is = _______