3. 80 mol O2 will produce how many moles of CO2? Include entire unit (mol) and


compound formula, 3 sig figs.

It takes approximately 406,687.5 joules of energy to take 150 grams of ice from -15°C to 125°C.

To determine the amount of energy required to take ice from -15°C to 125°C, we need to consider two stages of the process; Heating the ice from -15°C to 0°C, causing it to melt, and Heating the resulting water from 0°C to 125°C

We can calculate the amount of energy required for each stage separately and then add them together to get the total energy required.

Heating the ice from -15°C to 0°C; The specific heat capacity of ice is 2.09 J/(g·°C), which means that it takes 2.09 joules of energy to raise the temperature of 1 gram of ice by 1°C. Since we have 150 grams of ice, we can calculate the amount of energy required to raise the temperature of the ice from -15°C to 0°C as;

Q1 = m × c × ΔT

= 150 g × 2.09 J/(g·°C) × (0°C - (-15°C))

= 4,987.5 J

Therefore, it takes 4,987.5 joules of energy to heat the ice from -15°C to 0°C

Heating the water from 0°C to 125°C; The specific heat capacity of water is 4.18 J/(g·°C), which means that it takes 4.18 joules of energy to raise the temperature of 1 gram of water by 1°C. We need to heat the water from 0°C to 100°C (the boiling point of water at standard pressure) and then from 100°C to 125°C.

For the first stage, we can calculate the amount of energy required as;

Q₂a = m × c × ΔT

= 150 g × 4.18 J/(g·°C) × (100°C - 0°C)

= 62,700 J

The heat of vaporization of water at standard pressure is 2,260 J/g. Since we have 150 grams of water, we can calculate the amount of energy required to convert all the water to steam as:

Q₂b = m × Lv = 150 g × 2,260 J/g

= 339,000 J

Therefore, it takes a total of;

Q = Q₁ + Q₂a + Q₂b

= 4,987.5 J + 62,700 J + 339,000 J

= 406,687.5 J

Therefore, it takes 406,687.5 joules of energy.

To know more about heat of vaporization here

https://brainly.com/question/11465845

#SPJ1

The reaction of 4.30 mol of magnesium with an excess of oxygen produces 6.40 mol of magnesium oxide (MgO).

Magnesium oxide is a white, odorless inorganic compound composed of magnesium and oxygen atoms. It is a strong basic oxide and an important mineral component of many rocks and soils. It has a wide range of industrial uses, such as in the production of cement, ceramics, and glass. It is also used as an antacid and laxative, and as a supplement to increase dietary magnesium intake.

The energy released in this reaction can be determined using the following equation:E = ΔHf (MgO) x (6.40 mol MgO)

In this equation, ΔHf (MgO) is the molar enthalpy of formation of magnesium oxide. The molar enthalpy of formation of magnesium oxide is -601.8 kJ/mol. Therefore, the total energy released in this reaction is:

E = -601.8 kJ/mol x (6.40 mol MgO)

E = -3,854.7 kJ.To determine the number of grams of MgO produced, we can use the following equation: Mass (MgO) = (6.40 mol MgO) x (Molar mass MgO) .

The molar mass of MgO is 40.3 g/mol. Therefore, the mass of MgO produced is: Mass (MgO) = (6.40 mol MgO.

To learn more about magnesium oxide

https://brainly.com/question/30333465

#SPJ4

Turtle refuges are usually created on beaches where turtles lay their eggs, hatch, and return to the sea. Therefore, beaches that are known as nesting grounds for sea turtles may be suitable for creating a turtle refuge.

In general, turtle nesting sites are characterized by sandy beaches, dunes, and undisturbed vegetation. Female sea turtles come ashore to lay their eggs on sandy beaches, and the hatchlings make their way to the ocean once they emerge from the nest.

Turtle refuges provide protection for these nesting sites, allowing the turtles to lay their eggs and for the hatchlings to safely make their way to the ocean.

It is important to note that the location of a turtle refuge should be based on careful research and consideration of a variety of factors, such as the species of turtles that inhabit the area, the presence of human and natural threats to the nesting sites, and the availability of resources and support for the conservation efforts.

For more question on Turtle click on

https://brainly.com/question/26173544

#SPJ11

The number of moles in the room depends on the temperature.

Assuming that the temperature and volume in the room are the same as those outside, we can use the ideal gas law to calculate the number of moles of gas in the room.

Ideal gas law is given by:

PV = nRT

Number of moles:

n = PV/RT

Since the temperature and pressure are the same in both cases, we can write:

n(room) = (P × V(room)) / RT

n(bulb) = (P × V(bulb)) / RT

We are given that the bulb contains 9.00 moles of gas at the same temperature and pressure as the room. Therefore, we can use the number of moles in the bulb to find the pressure and temperature:

n(bulb) = (P × V(bulb)) / RT

9.00 mol = (P × 61.0 L) / (R × T)

Similarly, for the room, we can write:

n(room) = (P × V(room)) / RT

n(room) = (P × 85.0 L) / (R × T)

P = (n × RT) / V

P = (PV / RT) × RT / V

P = nRT / V

We can use the value of n from the bulb to find the pressure and temperature:

9.00 mol × R × T / 61.0 L = P

P = 3.17 atm

Now we can use this value of pressure to find the number of moles in the room:

n(room) = (P × V(room)) / RT

n(room) = (3.17 atm × 85.0 L) / (R × T)

n(room) = (3.17 atm × 85.0 L) / (0.08206 L atm/mol K × T)

n(room) = 129.3 L atm / (R × T)

Therefore, the number of moles in the room depends on the temperature.

Learn more about volume Visit: brainly.com/question/27710307

#SPJ4

The balance and net ionic equation are;

1. Ca (s) + Br2 (l) → CaBr2 (s)

2. HNO3 (aq) + BaCl2 (aq) → Ba(NO3)2 (aq) + 2HCl (aq)

3. C7H16 (l) + 11O2 (g) → 7CO2 (g) + 8H2O (l)

4. balanced equation:Cl2 (g) + 2KI (aq) → 2KCl (aq) + I2 (s),

Net ionic equation:

Cl2 (g) + 2I- (aq) → 2Cl- (aq) + I2 (s)

5. Zn (s) + Ca(NO3)2 (aq) → No reaction (since Ca is less reactive than Zn)

6. 2Na3PO4 (aq) + 3Mg(NO3)2 (aq) → Mg3(PO4)2 (s) + 6NaNO3 (aq)

Net ionic equation: 2PO4^3- (aq) + 3Mg^2+ (aq) → Mg3(PO4)2 (s)

7. 2Al (s) + 3ZnCl2 (aq) → 2AlCl3 (aq) + 3Zn (s)

8. 2Fe2O3 (s) → 4Fe (s) + 3O2 (g)

9. Balanced equation: LiOH (aq) + HCl (aq) → LiCl (aq) + H2O (l)

Net ionic equation: OH- (aq) + H+ (aq) → H2O (l)

10A. Solid sodium in water.

2Na (s) + 2H2O (l) → 2NaOH (aq) + H2 (g)

10B. What would happen if you bring a burning splint to the previous reaction?

10 C - The burning splint would go out (since the H2 produced in the reaction may ignite and cause a "pop" sound, but the burning splint itself would go out).

A balanced equation is a chemical equation with equal numbers of atoms for each element on both sides, following the law of conservation of mass.

A net ionic equation is a simplified version of a balanced equation that only shows species participating in the reaction as ions, excluding spectator ions that remain unchanged throughout the reaction. This highlights the actual chemical changes occurring in the reaction.

Find more exercises on net ionic equation;

https://brainly.com/question/22885959

#SPJ1

One way to reduce the volume of hydrogen gas needed to power a car for 400 km is to use a technology called on-board hydrogen storage.

This involves compressing the hydrogen gas to very high pressures, typically between 5,000 and 10,000 psi, which significantly reduces its volume.

Another method is to use liquid hydrogen storage, which involves cooling hydrogen gas to its boiling point (-423.17°F or -252.87°C) and storing it in a cryogenic tank. At this temperature, hydrogen gas is in its liquid state and takes up much less space than when it is in its gaseous state.

Both of these methods of hydrogen storage can greatly reduce the volume of hydrogen needed to power a car for 400 km, making hydrogen fuel cell cars more practical and feasible for everyday use.

To know more about hydrogen gas, refer here:

https://brainly.com/question/143551553#

#SPJ11

We can deduce from the computations that the mass of the acetic acid produced is 28.2 g.

The reactant that is totally consumed during a chemical reaction involving two or more reactants is known as the limiting reactant. This limits the amount of product that can be generated. Excess reactants are the additional reactant(s) that are still present after the limiting reactant has been completely consumed.

CH3CHO's molecular weight is 20.8 g/44 g/mol.

= 0.47 moles

O2 molecular weight is 14.5 g/32 g/mol.

= 0.45 moles

If 1 mole of O2 interacts with 2 moles of CH3CHO

CH3CHO containing 0.47 moles would react with 0.47 * 1/2.

= 0.24 moles

Thus, the limiting reactant is CH3CHO.

Acetic acid mass produced is 0.47 moles * 60 g/mol.

= 28.2 g

Learn more about acetic acid:brainly.com/question/15202177

#SPJ1

When zinc reacts with hydrochloric acid, the response bubbles vigorously as hydrogen fueloline is produced.

The manufacturing of a fueloline is likewise an illustration that a chemical response is occurring. When dilute hydrochloric acid is introduced to granulated zinc positioned in a take a look at tube, zinc metallic is transformed to zinc chloride and hydrogen fueloline is developed withinside the response. In the response we will see that a zinc chloride salt is fashioned and hydrogen fueloline is developed. The developed hydrogen fueloline is colourless and odourless. When Zinc granules reacts with Hydrochloric acid ,it'll produces hydrogen fueloline and zinc chloride.

To learn more about hydrochloric acid check the link below-

https://brainly.com/question/24586675

#SPJ4

The temperature of the gas when the volume of the container increases to 1074 mL is 358.15 K or 85.0°C

The behavior of gases is affected by several factors including temperature, pressure, and volume. One important principle that applies to gases is that they tend to occupy the entire volume of their container. Therefore, if the volume of the container increases, the gas will occupy more space.

In this particular scenario, the gas initially occupies 900 mL at a temperature of 27.0°C. When the volume of the container increases to 1074 mL, we need to determine the corresponding temperature of the gas. To do this, we can use the formula:

(V1/T1) = (V2/T2)

Where V1 and T1 represent the initial volume and temperature of the gas, respectively, and V2 and T2 represent the final volume and temperature of the gas, respectively.

Substituting the given values into the formula, we get:

(900/300.15) = (1074/T2)

Simplifying the equation, we can cross-multiply and solve for T2:

900T2 = 1074 x 300.15

T2 = 1074 x 300.15 / 900

T2 = 358.15 K

Therefore, the temperature of the gas when the volume of the container increases to 1074 mL is 358.15 K or 85.0°C (rounded to one decimal place).

To know more about temperature, visit:

https://brainly.com/question/11464844#

#SPJ11

The most likely source of a substance containing carbon, hydrogen, oxygen, and nitrogen is a living organism, such as a plant or an animal.

This is because these four elements are the main components of organic matter, which is found in living things. Carbon is the backbone of organic molecules, while hydrogen and oxygen are also found in many organic compounds, including carbohydrates and lipids.

Nitrogen is an essential component of amino acids, which are the building blocks of proteins. Therefore, if a substance contains all four of these elements, it is likely that it was produced by a living organism or is a byproduct of a living organism's metabolism.

However, this is not always the case, as there are other sources of these elements, such as fossil fuels, which contain carbon and hydrogen, and water, which contains hydrogen and oxygen.

To know more about organic matter, refer here:

https://brainly.com/question/11165274#

#SPJ11

The changes that occur in the parent nucleus during gamma decay are limited to the emission of a gamma ray and the associated decrease in energy. The mass and atomic number of the nucleus remain unchanged.

In gamma decay, the parent nucleus does not undergo any changes in terms of its mass or atomic number. Instead, the nucleus emits a gamma ray, which is a high-energy photon. This gamma ray is released as the nucleus transitions from an excited state to a lower energy state.

The emission of a gamma ray does not affect the number of protons or neutrons in the nucleus. This means that the atomic number and mass number of the nucleus remain the same before and after gamma decay.

However, the emission of a gamma ray does result in a decrease in the energy of the nucleus. This is because gamma rays have a very high frequency and carry a lot of energy. By releasing a gamma ray, the nucleus is able to shed some of this excess energy and move to a lower energy state.

For more such questions on nucleus

https://brainly.com/question/5223117

#SPJ11

152 grams of [tex]C2H6[/tex]would release 152 kJ of energy when it condenses at its boiling point.

Assuming you meant "[tex]C2H6[/tex]" instead of "[tex]CH Ch[/tex]", the heat of vaporization of [tex]C2H6[/tex]is 30.1 kJ/mol. The molar mass of [tex]C2H6[/tex] is 30.07 g/mol.

To calculate the heat of vaporization for 152 g of [tex]C2H6[/tex], we need to first calculate the number of moles of [tex]C2H6[/tex]:

152 g / 30.07 g/mol = 5.05 mol

Then, we can calculate the energy released using the heat of vaporization:

5.05 mol x 30.1 kJ/mol = 152 kJ

Therefore, 152 grams of [tex]C2H6[/tex]would release 152 kJ of energy when it condenses at its boiling point.

To know more about boiling point refer to-

https://brainly.com/question/2153588

#SPJ11

- Dialcohol: used in polyester synthesis
- Diester: used in polyester synthesis
- Dinitrodiacid: neither polyester nor nylon synthesis
- Diamine: used in nylon synthesis
- Diether: neither polyester nor nylon synthesis

1. Dialcohol: This type of bifunctional molecule is used in the synthesis of polyesters. Polyesters are formed through the condensation reaction between a dialcohol and a diacid or diester.

2. Diester: Diesters are also used in the synthesis of polyesters. They react with dialcohols to form polyester chains.

3. Dinitrodiacid: Dinitrodiacids are not commonly used in the synthesis of either polyesters or nylons. Their nitro functional groups make them less reactive for the condensation reactions required for these polymer types.

4. Diamine: Diamines are used in the synthesis of nylons. Nylons are formed through the condensation reaction between a diamine and a diacid or a diester with a specific type of functional groups, such as adipoyl chloride.

5. Diether: Diethers are not used in the synthesis of polyesters or nylons. They lack the necessary functional groups (alcohol, ester, or amine) for the condensation reactions needed to form these polymers.

Learn more about polyesters at https://brainly.com/question/13094865

#SPJ11

The chemical reaction is

2 K + Na2O -> K2O + 2 Na

The given chemical equation represents a reaction between potassium (K) and sodium oxide (Na2O). The products formed in this reaction are potassium oxide (K2O) and sodium (Na).

On the reactant side, we have two atoms of potassium and two atoms of sodium, while on the product side, we have two atoms of potassium and two atoms of sodium as well.

Therefore, the equation is already balanced with respect to the number of potassium and sodium atoms.

However, we need to balance the oxygen atoms. On the reactant side, we have one molecule of Na2O, which contains two atoms of oxygen. On the product side, we have one molecule of K2O, which also contains two atoms of oxygen. Thus, the equation is balanced.

Finally, we can write the balanced equation as:

2 K + Na2O → K2O + 2 Na

To know more about  chemical equation refer here:

https://brainly.com/question/30087623

#SPJ11

The molarity of 0.50 moles of CaCl₂ in 3500 mL of solution is approximately 0.143 M.

To calculate the molarity of 0.50 moles of CaCl₂ in 3500 mL of solution, follow these steps:

1. Convert the volume of the solution from milliliters (mL) to liters (L). There is 1000 mL in 1 L, so divide the given volume by 1000:
  3500 mL ÷ 1000 = 3.5 L

2. Use the formula for molarity (M), which is the number of moles of solute (in this case, CaCl₂) divided by the volume of the solution in liters (L):
  M = moles of solute/volume of solution in L

3. Plug in the values given in the problem: 0.50 moles of CaCl₂ and 3.5 L of solution:
  M = 0.50 moles / 3.5 L

4. Calculate the molarity:
  M ≈ 0.143 M

Learn more about molarity at https://brainly.com/question/30404105

#SPJ11

Answer:

15717.124

Explanation:

124 moles of FeCl2.

The molar mass of FeCl2 is 126.751 g/mol.

To find grams of FeCl2, multiply the number of moles by its molar mass.

124 moles * 126.751 g/mol  = 15717.124 grams.

You can check the ending unit. moles * grams / moles leaves just grams, which is the answer you're looking for.

A total of 96,320 kJ / 17 kJ per gram of protein = 5,670 grams of protein.

To determine the grams of protein needed to produce 23,000 calories of energy, we need to convert the calories to kilojoules (kJ) and then divide by the energy produced by each gram of protein.

23,000 calories = 96,320 kJ (1 calorie = 4.184 kJ)
Each gram of protein produces 17 kJ of energy.


Protein is an important nutrient for our bodies, as it provides the building blocks for our muscles, bones, and other tissues. It also plays a role in many cellular functions and processes. One of the functions of protein is to provide energy for our bodies, although this is not its primary role.

When we eat protein, our bodies break it down into amino acids, which can then be used for various purposes. One of these purposes is to produce energy.

Every gram of protein contains 4 calories, or 17 kilojoules, of energy. This is less than the amount of energy provided by a gram of fat (9 calories or 37 kilojoules) or a gram of carbohydrate (4 calories or 17 kilojoules), but it is still significant.

To know more about cellular functions click on below link:

https://brainly.com/question/30112418#

#SPJ11

The number of moles of nitrogen gas that will occupy a volume of 5L at 3.85 atm and 27°C is determined using the ideal gas law equation. After calculations, it is found to be approximately 0.7919 moles. Thus, 0.7919 moles of nitrogen gas occupy 5L at 3.85 atm and 27°C.

To calculate the number of moles of nitrogen gas that will occupy a volume of 5L at 3.85 atm and 27°C, we can use the ideal gas law equation:

PV = nRT

where P is the pressure in atmospheres, V is the volume in liters, n is the number of moles, R is the gas constant (0.08206 L·atm/K·mol), and T is the temperature in Kelvin.

First, we need to convert the temperature from Celsius to Kelvin:

T = 27°C + 273.15 = 300.15 K

Next, we can rearrange the ideal gas law equation to solve for the number of moles:

n = PV / RT

Plugging in the values, we get:

[tex]n = \frac{{(3.85 \, \text{atm}) \cdot (5 \, \text{L})}}{{(0.08206 \, \text{L} \cdot \text{atm/K} \cdot \text{mol}) \cdot (300.15 \, \text{K})}}[/tex]

Simplifying the expression, we get:

n = 0.7919 moles

Therefore, 0.7919 moles of nitrogen gas will occupy a volume of 5L at 3.85 atm and 27°C.

To know more about the ideal gas law equation refer here :

https://brainly.com/question/11544185#

#SPJ11

Answer:

-2.6 mL.

Explanation:

To solve this question, we need to use the formula:

V1/T1 = V2/T2

where V1 and T1 are the initial volume and temperature of the gas, and V2 and T2 are the final volume and temperature of the gas. We also need to convert the temperatures from degrees Celsius to kelvins by adding 273.15. Plugging in the given values, we get:

50.0 mL / (48.0 + 273.15) K = V2 / (3 + 273.15) K

Solving for V2, we get:

V2 = 50.0 mL x (3 + 273.15) K / (48.0 + 273.15) K V2 = 47.4 mL

Therefore, the change in volume is:

ΔV = V2 - V1 ΔV = 47.4 mL - 50.0 mL ΔV = -2.6 mL

The negative sign indicates that the volume decreases when the gas is cooled.

The answer is -2.6 mL.

The true statements regarding the greenhouse effect are:

The greenhouse effect is a natural process that occurs when certain gases in the atmosphere, known as greenhouse gases, trap heat from the sun and prevent it from escaping back into space. This helps to keep the Earth's surface warm enough to support life. However, human activities, such as burning fossil fuels, have increased the concentration of greenhouse gases in the atmosphere, which has led to an enhanced greenhouse effect and global warming.

In the greenhouse effect, not all energy from the sun is absorbed by atmospheric gases. Rather, some of it is reflected back into space by the atmosphere. Additionally, the greenhouse effect does not change sunlight into carbon dioxide; rather, it is the burning of fossil fuels and other human activities that release carbon dioxide into the atmosphere. Options B, C and E are correct.

To know more about the Greenhouse effect, here

https://brainly.com/question/29000016

#SPJ4

The excess reactant will be oxygen.

To determine the excess reactant, we need to compare the amount of moles of each reactant to the stoichiometry of the balanced equation. The stoichiometric ratio between magnesium and oxygen is 2:1, which means that for every 2 moles of magnesium, 1 mole of oxygen is required for complete reaction.

In this case, we have 7.8 moles of magnesium and 4.7 moles of oxygen. Based on the stoichiometric ratio, we can see that 7.8 moles of magnesium require 3.9 moles of oxygen (2 moles of oxygen for every 1 mole of magnesium). Since we only have 4.7 moles of oxygen, it is the limiting reactant, and magnesium will be in excess.

Therefore, after the reaction is complete, all of the magnesium will be consumed, and some oxygen will be left over. The product of the reaction will be 7.8 moles of magnesium oxide.

To learn more about reactions, here

https://brainly.com/question/28984750

#SPJ4

The final volume of the gas is 31.4 L when cooled from 45.0°C to 12.0°C.

The Charles's law states the relationship between the volume and the temperature of a gas when the pressure is constant. We can use the formula for the relationship between volume and temperature of a gas: [tex]\frac{V_{1} }{T_{1} }[/tex] = [tex]\frac{V_{2} }{T_{2} }[/tex]

where [tex]V_{1}[/tex] and [tex]T_{1}[/tex] are the initial volume and temperature, and [tex]V_{2}[/tex] and [tex]T_{2}[/tex] are the final volume and temperature.

We are given [tex]V_{1}[/tex] = 35.0 L and [tex]T_{1}[/tex] = 45.0°C = 45.0°C + 273.15 = 318.15 K,

and we need to find [tex]V_{2}[/tex] when [tex]T_{2}[/tex] = 12.0°C = 12.0°C + 273.15 = 285.15 K .  

Now by using the formula:

35.0 L / 318.15 K = [tex]V_{2}[/tex] / 285.15 K

[tex]V_{2}[/tex] = (35.0 L / 318.15 K) × 285.15 K

[tex]V_{2}[/tex] = 31.4 L

Therefore, the final volume of the gas is 31.4 L when cooled from 45.0°C to 12.0°C.

To know more about Charles's law visit:

https://brainly.com/question/16927784

#SPJ11

The types of chemical bonds present in a material determine the arrangement of atoms or molecules at the microscopic level, which in turn determines the properties of the material at the macroscopic level.

For example, materials with ionic bonds tend to have high melting and boiling points due to the strong electrostatic attraction between positively and negatively charged ions. Covalently bonded materials tend to have lower melting and boiling points due to the weaker intermolecular forces between molecules.

Metallic bonding leads to high electrical and thermal conductivity due to the delocalization of electrons within the metal lattice. These different bond types and resulting material properties are important in understanding the behavior and applications of different materials.

To know more about the Covalently bonded refer here :

https://brainly.com/question/14509196#

#SPJ11

The balanced chemical equation is:

2 MnI2 + 13 F2 → 2 MnF3 + 4 IF5

According to the stoichiometry of the reaction, for every 13 moles of F2 that react, 2 moles of MnI2 are consumed. Therefore, the conversion factor to use when converting moles of MnI2 to moles of F2 is:

13 moles F2 / 2 moles MnI2

This conversion factor can be used to convert moles of MnI2 to moles of F2 or vice versa, by multiplying the number of moles of the starting substance by the conversion factor.

To know more about chemical refer here

https://brainly.com/question/29237397#

#SPJ11

Answer:

false

Explanation:

magnetic field lines can be accurately observed using *iron filling*

Answer:

Carbon and silicon are both in Group 14 of the periodic table, which means they have similar electronic configurations and therefore similar bonding properties. However, the difference in melting and sublimation temperatures of their oxides, silicon oxide and solid carbon dioxide, respectively, can be attributed to differences in their structure and bonding.

Silicon oxide (SiO2) has a giant covalent structure, in which each silicon atom is covalently bonded to four oxygen atoms and each oxygen atom is covalently bonded to two silicon atoms. This gives rise to a three-dimensional network of strong covalent bonds, which requires a large amount of energy to be broken. Therefore, silicon oxide has a high melting point of 2440°C because a lot of energy is required to overcome the strong covalent bonds and melt the solid.

On the other hand, solid carbon dioxide (CO2) has a molecular structure, in which each carbon atom is double bonded to two oxygen atoms. The carbon dioxide molecules are held together by weak intermolecular forces, such as Van der Waals forces, which are much weaker than the strong covalent bonds present in silicon oxide. As a result, solid carbon dioxide can sublime at -70°C, without melting into a liquid, because the intermolecular forces can be overcome by relatively low energy input.

In summary, the difference in melting and sublimation temperatures of silicon oxide and solid carbon dioxide can be explained by the difference in their bonding types and structures. Silicon oxide has a giant covalent structure with strong covalent bonds that require a large amount of energy to break, resulting in a high melting point. Solid carbon dioxide has a molecular structure held together by weak intermolecular forces, which can be overcome by relatively low energy input, resulting in a low sublimation point.

480 mL of the HCl solution with a pH of 1.3 can be neutralized by one dose of milk of magnesia assuming the concentration of magnesium hydroxide is 0.2 M.

To determine the volume of [tex]HCl[/tex] solution that can be neutralized by milk of magnesia, we need to know the concentration of the milk of magnesia.

Assuming milk of magnesia is a suspension of solid magnesium hydroxide in water, we need to know the concentration of magnesium hydroxide [tex](Mg(OH)2)[/tex] in the suspension.

Let's assume that the concentration of magnesium hydroxide in milk of magnesia is 0.2 M.

The balanced chemical equation for the neutralization reaction between [tex]HCl[/tex] and[tex]Mg(OH)2[/tex]is:

[tex]2HCl + Mg(OH)2 - > MgCl2 + 2H2O[/tex]

From the equation, we can see that two moles of [tex]HCl[/tex] react with one mole of [tex]Mg(OH)2[/tex].

To determine the volume of [tex]HCl[/tex] solution, we need to calculate the number of moles of [tex]Mg(OH)2[/tex] in one dose of milk of magnesia:

0.2 M = 0.2 moles / liter

Let's assume one dose of milk of magnesia is 30 mL, or 0.03 L. Then the number of moles of [tex]Mg(OH)2[/tex] in one dose is:

0.2 moles / L x 0.03 L = 0.006 moles Mg(OH)2

Therefore, this amount of [tex]Mg(OH)2[/tex] would require:

2 x 0.006 = 0.012 moles of [tex]HCl[/tex] for complete neutralization

Now, let's calculate the volume of [tex]HCl[/tex] solution needed to provide 0.012 moles of [tex]HCl[/tex].

The volume of [tex]HCl[/tex] solution can be calculated using the balanced chemical equation and the molarity of the [tex]HCl[/tex] solution:

2 moles HCl / 1 mole [tex]Mg(OH)2[/tex] x 0.012 moles [tex]Mg(OH)2[/tex] / 1 = 0.024 moles HCl

[tex]pH = -log[H+]1.3 = -log[H+]\\[H+] = 5 x 10^-2 M[/tex]

Now we can calculate the volume of the HCl solution using the equation:

moles = concentration x volume

0.024 moles = [tex]5 x 10^-2 M x volume[/tex]

volume = 0.48 L or 480 mL

To know more about  milk of magnesia refer to-

https://brainly.com/question/22066653

#SPJ11

The pressure inside a container that contains 25 grams of argon is 0.34 atm.

The pressure inside a container can be calculated using the following expression;

PV = nRT

Where;

According to this question, 25 grams of argon in a container has a volume of 60 liters and at a temperature of 400 K.

P × 60 = 0.625 × 0.0821 × 400

60P = 20.525

P = 0.34 atm

Learn more about pressure at: https://brainly.com/question/18124975

#SPJ1

To determine the volume of 0.8m NaOH required to titrate 300 ml of 0.6m phosphoric acid, we first need to understand the mole ratio between the two substances. According to the given assumption of a 1:1 mole ratio, one mole of NaOH reacts with one mole of phosphoric acid.

Next, we can calculate the number of moles of phosphoric acid present in the solution by multiplying the molarity (0.6m) by the volume (300ml) and converting to moles using the molecular weight of phosphoric acid. This gives us 0.108 moles of phosphoric acid.

Since the mole ratio is 1:1, we will need 0.108 moles of NaOH to completely titrate the phosphoric acid. To determine the volume of 0.8m NaOH required to provide 0.108 moles, we can use the formula:

moles = molarity x volume (in liters)

Rearranging this equation, we get:

volume (in liters) = moles / molarity

Substituting the values, we get:

volume (in liters) = 0.108 moles / 0.8m = 0.135 liters

Multiplying this by 1000ml/liter, we get the final answer:

Volume of 0.8m NaOH required = 135 ml.

To know more about phosphoric acid refer here

https://brainly.com/question/3700851#

#SPJ11