What is one reaction that will form an arrhenius base?.

Answer:

8.0 mol/L

Explanation:

To do this problem you need to use C₁V₁=C₂V₂. C=concentration and V=volume. (Note: you dont want to use M₁V₁=M₂V₂ because this is measuring mass not concentration).

So, V₁= 1.0L

C₂=2 Mol/L

V₂= 4 L

C₁ is unknown.

you would plug this equation in like this:

(C₁)(1.0 L)=(2.0 Mol/L)(4.0L).

Do algebra to get C₁ alone.

C₁=[tex]\frac{(2.0 mol/L)(4.0L)}{1.0L} =8.0 mol/L[/tex]

The liters cancel out and you are left with mol/L or M

I hope this helps! good luck :)

Answer:

The answer is 2939 moles.

Explanation:

To obtain the moles from these values you should apply the ideal gas formula because in a scuba tank all gas that you have inside is the air:

PV= nRT. (1)

Thus the moles number, n, is:

n = PV/ RT (2)

Where:

P is pressure: 195 atm;

V is volume: 350 L,

R is gas constant: 0,082 atm×L / mol×K

And T is temperature: 10°C, that must be converted in k, thus:

10°C + 273,15 = 283,15 K

Replacing these values in (2) the moles number, n, is:

2939 moles of air

Molar mass of SmO or sodium methylate is 160g/mol

Now

Given mass

The moles of water are produced from the given reaction, when 275 kJ of energy is given off is 1.08 moles.

The mole (symbol mol) is the SI base unit of material quantity. The amount of substance in an object or sample is a measure of how many elementary entities of a certain substance are present.
Given chemical reaction is:

4NH₃ + 3O₂ → 2N₂ + 6H₂O

From the stoichiometry of the reaction it is clear that 6 moles of water molecule is produced.

Actual moles will be calculated by using the enthalpy and energy value as:

Actual moles of H₂O = 275kJ × (6 mol H₂O)/1530kJ) = 1.08 moles.

Hence required moles of H₂O is 1.08 moles.

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The volume that would be necessary to decrease the pressure to 1.0 atm is mathematically given as

v2=6.4l

Question Parameter(s):

A 2.0 l container of oxygen had a pressure of 3.2 atm

Generally, the equation for the   is mathematically given as

P1v1=p2v2

Therefore

v2=piv1/p2

v2=2*3.2/1

v2=6.4l

In conclusion, the  volume is

v2=6.4l

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Answer:

Explanation:

If we increase the concentrations of a weak acid and its conjugate base by the amounts shown,  the buffer capacity will remain the same.

The term buffer capacity is generally used to describe how much of the acid or base that can be neutralized by a buffer before there can be a change in the pH.

In this case, if we increase the concentrations of a weak acid and its conjugate base by the amounts shown,  the buffer capacity will remain the same.

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Answer:

roughly about 246.1?

Explanation:

Base is used in aldol condensation reaction

because it is an organic reaction to form enolate ion, the OH bond present in base help to remove Acidic hydrogen of enolate ion.

Answer:

A box of ideal gas has consists of light particles and heavy particles (the heavy ones have 16 times the mass of the light ones).

Answer: A heating curve graphically represents the phase transitions that a substance undergoes as heat is added to it.

The plateaus on the curve mark the phase changes. The temperature remains constant during these phase transitions.

Water has a high boiling point because of the strong hydrogen bonds between the water molecules; it is both a strong hydrogen bond donor and acceptor.

The first change of phase is melting, during which the temperature stays the same while water melts. The second change of phase is boiling, as the temperature stays the same during the transition to gas

Explanation:

That's latent heat of vaporization.

The acid/base pair that give equivalence point that Cannot be predicted by general knowledge is NaOH and HCI ONH.

An Acid is a substances that is corrosive in nature and turn blue lithmus paper to red which it react with base to produce salt and water.

Acid dissolve metals.

Base is a substance that turn red lihthmus paper to blue and react with acid to produce salt and water.

Therefore, The acid/base pair that give equivalence point that Cannot be predicted by general knowledge is NaOH and HCI ONH.

The question is incomplete as the options were not given. The options were gotten from another website.

Select the correct answer below:

ONaOH and HCI ONH,

HC ONH, and CH, COOH

NaOH and Christmas, COOH

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Answer:

Approximately [tex]7.25[/tex].

Explanation:

If the concentration of [tex]{\rm H^{+}}[/tex] ions in a solution is [tex]x\; {\rm M}[/tex], the [tex]{\rm pH}[/tex] of that solution would be [tex](-\log_{10}(x))[/tex].

Note that the base of the logarithm in this calculation should [tex]10[/tex]. One way to be sure is to state the base explicitly. Using the change of base rule of logarithms:

[tex]\begin{aligned}-\log_{10}(x) = -\frac{\ln(x)}{\ln(10)}\end{aligned}[/tex].

In this question, it is implied that the concentration of [tex]{\rm H^{+}}[/tex] in the given solution is [tex]5.6 \times 10^{-8}\; {\rm M}[/tex], such that [tex]x = 5.6 \times 10^{-8}[/tex]. Using the equations above:

[tex]\begin{aligned}& \text{pH of this solution} \\ =\; & -\log_{10}(x) \\ =\; & -\frac{\ln(x)}{\ln(10)} \\ =\; & -\frac{\ln(5.6 \times 10^{-8})}{\ln(10)} \\ \approx\; & 7.25\end{aligned}[/tex].

Answer:

14.625 gm

Explanation:

(x / 58.5 gm) / (500ml /1000 ml) = .5         x = 14.625 gm

Answer: Decrease

"Carbon dioxide reacts with seawater to form carbonic acid, which releases hydrogen ions, reducing pH"

Sourced from https://yaleclimateconnections.org/2008/06/covering-ocean-acidification-chemistry-and-considerations/

So basically the ocean is absorbing the CO32- and that lowers the pH as well lowers the amount of CO32- readily available.

This is all I could find on this subject though ;'(

The two factors must be considered when predicting whether two substances will dissolve in each other are type of bonds and size of the molecules are two factors.

Solubility is the ability of solute particles to dissolve in any solvent, and solubility is directly proportional to the dissolving ability of the solute.

Solubility of any substance depends on the type of the bond present in the solute molecule i.e. polar or non polar. And it is also depends on the size of the solute as size defines the surface tenssion of the substance.

Hence type of bonds and size of the molecules are two factors.

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Since the bell weighs 190 N and is 45 m high, the bell’s potential energy is 8550 J

To answer the question, we need to know what potential energy is.

This is energy due to position. It is given by PE = mgh where

Also, W = mg = weight of object.

So, PE = Wh

Now, given that the bells weight 190 N and is 45 m high,

So, PE = Wh

= 190 N × 45 m

= 8550 Nm

= 8550 J

So, the bell’s potential energy is 8550 J

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Answer:

True.

Explanation:

Ternary acids end in -ic if the polyatomic anion ends in -ate.

At constant temperature, if the volume of the sample of gas increases to the given value, the pressure decreases to 0.92atm.

Boyle's law simply states that "the volume of any given quantity of gas is inversely proportional to its pressure as long as temperature remains constant.

Boyle's law is expressed as;

P₁V₁ = P₂V₂

Where P₁ is Initial Pressure, V₁ is Initial volume, P₂ is Final Pressure and V₂ is Final volume.

Given the data in the question question;

We substitute our given values into the expression above to determine the new pressure.

P₁V₁ = P₂V₂

P₂ = P₁V₁ / V₂

P₂ = ( 1.53atm × 0.03L ) / 0.0501L

P₂ = 0.0459Latm / 0.0501L

P₂ = 0.92atm

Therefore, at constant temperature, if the volume of the sample of gas increases to the given value, the pressure decreases to 0.92atm.

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Answer: There are 31.8 grams of copper.

Explanation:

Answer:

Many people have a qualitative idea of what is meant by concentration. Anyone who has made instant coffee or lemonade knows that too much powder gives a strongly flavored, highly concentrated drink, whereas too little results in a dilute solution that may be hard to distinguish from water. In chemistry, the concentration of a solution is the quantity of a solute that is contained in a particular quantity of solvent or solution. Knowing the concentration of solutes is important in controlling the stoichiometry of reactants for solution reactions. Chemists use many different methods to define concentrations, some of which are described in this section.

Molarity

The most common unit of concentration is molarity, which is also the most useful for calculations involving the stoichiometry of reactions in solution. The molarity (M) is defined as the number of moles of solute present in exactly 1 L of solution. It is, equivalently, the number of millimoles of solute present in exactly 1 mL of solution:

molarity=molesofsolutelitersofsolution=mmolesofsolutemillilitersofsolution(4.5.1)

(4.5.1)molarity=molesofsolutelitersofsolution=mmolesofsolutemillilitersofsolution

The units of molarity are therefore moles per liter of solution (mol/L), abbreviated as MM . An aqueous solution that contains 1 mol (342 g) of sucrose in enough water to give a final volume of 1.00 L has a sucrose concentration of 1.00 mol/L or 1.00 M. In chemical notation, square brackets around the name or formula of the solute represent the molar concentration of a solute. Therefore,

[sucrose]=1.00M(4.5.2)

(4.5.2)[sucrose]=1.00M

is read as “the concentration of sucrose is 1.00 molar.” The relationships between volume, molarity, and moles may be expressed as either

VLMmol/L=L(molL)=moles(4.5.3)

(4.5.3)VLMmol/L=L(molL)=moles

or

VmLMmmol/mL=mL(mmolmL)=mmoles(4.5.4)

(4.5.4)VmLMmmol/mL=mL(mmolmL)=mmoles

Figure 4.5.14.5.1 illustrates the use of Equations 4.5.34.5.3 and 4.5.44.5.4 .

alt

Figure 4.5.14.5.1 : Preparation of a Solution of Known Concentration Using a Solid Solute

Example 4.5.14.5.1 : Calculating Moles from Concentration of NaOH

Calculate the number of moles of sodium hydroxide (NaOH) in 2.50 L of 0.100 M NaOH.

Given: identity of solute and volume and molarity of solution

Asked for: amount of solute in moles

Strategy:

Use either Equation 4.5.34.5.3 or Equation 4.5.44.5.4 , depending on the units given in the problem.

Solution:

Because we are given the volume of the solution in liters and are asked for the number of moles of substance, Equation 4.5.34.5.3 is more useful:

molesNaOH=VLMmol/L=(2.50L)(0.100molL)=0.250molNaOHmolesNaOH=VLMmol/L=(2.50L)(0.100molL)=0.250molNaOH

Exercise 4.5.14.5.1 : Calculating Moles from Concentration of Alanine

Calculate the number of millimoles of alanine, a biologically important molecule, in 27.2 mL of 1.53 M alanine.

The compounds will yield Positive results for the permanganate, ninhydrin, and ceric ammonium nitrate tests  are

permanganate test= ethene,

ninhydrin=aspasyic acid Phenylalanine

ceric ammonium nitrate test= methanol

Generally, A compound is simply defined as a substance made up of two or more different chemical elements held together by chemical bonds that are difficult to break.

In conclusion, For the permanganate test= ethene,

ninhydrin=aspasyic acid Phenylalanine

ceric ammonium nitrate test= methanol

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The values of molarity and volumes for the given questions are  2,100 mL, 0.75 M, 0.1 M, 50,000 mL, 2.07 M and 1,200 mL respectively.

Relation between the molarity and volume of the solution will be shown by the following equation:
M₁V₁ = M₂V₂, where

M₁ & V₁ is the molarity and volume of one solution whereas M₂ & V₂ are the molarities and volume of the another solution.

V₂ = (750)(2.8) / (1) = 2,100 mL

M₂ = (0.15)(125) / (25) = 0.75 M

M₂ = (100)(0.15) / (150) = 0.1 M

V₂ = (10)(250) / (0.05) = 50,000 mL

M₂ = (1.5)(345) / (250) = 2.07 M

V₂ = (2.4)(500) / (1) = 1,200 mL

Hence required values of molarity and volume are 2,100 mL, 0.75 M, 0.1 M, 50,000 mL, 2.07 M and 1,200 mL respectively.

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Answer:

plaster is important because of the many uses you can make out of plaster

The phosphorus atom in Phosphorus trichloride (PCl₃) would be expected to have a partial positive charge.

A molecule has a partial positive charge when it presents differences in electric charges along the molecule.

A molecule that has a partial positive charge is said to be polar because can generate polar bonds.

Moreover, phosphorus trichloride (PCl₃) is a molecule that forms a colorless substance used in the inorganic chemistry industry.

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Answer: The atomic symbol represent an isotope that undergoes radioactive decay to produce Pb-206 can be, Polonium (Po).

Energy levels are the electron shells where electrons are found at a fixed distance from the nucleus of the atom. The atom could emit 6 different wavelengths.

A wavelength is a distance between the adjacent crests in wave signals propagated in a system. Wavelength [tex](\rm \lambda )[/tex] is in inverse relation to the frequency of the wave.

When an electron jumps from energy level 1 to 2, 1 to 3, and 1 to 4 one wavelength each is present. Hence, making the total wavelength to be 3, in transition from the first energy level.

Similarly, from energy levels, 2 to 3 and 2 to 4, a total of 2 wavelengths, and from energy levels 3 to 4 one wavelength is produced.

So the total different wavelengths of the radiation that can be emitted will be 3 + 2 + 1 = 6.

Therefore, 6 different wavelengths of radiation will be emitted by the atom.

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Answer:is A.

Explanation:Because six carbon straight chain aldehyde it is clear liquid with an atomspheric pressure boiling point of 131 degree Celsius.

Answer:

black hole in ourter space for the first time the scientific research

and development of the following layers lethargic

Explanation:

STUDY CORRECTION.

Answer:

See below

Explanation:

From the equation you can see 5  mole O2   results in   3 moles CO2

( this is the limiting reagent because   C3H8 : O2  is   1:5)

6.2 / 5   *  3  = 3.72 moles CO2 produced

CO2 weighs ~ 44 gm/mole      44 gm/mole * 3.72 mole = 163.68 gm of CO2  

Answer:

B. a military unit

Explanation: