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tangare [24]
2 years ago
15

In a study of the conversion of methane to other fuels, a chemical engineer mixes gaseous CH4 and H2O in a 0.32-L flask at 1200

K. At equilibrium the flask contains 0.028 mol of CO, 0.084 mol of H2, and 0.045 mol CH4. What is [H2O] at equilibrium if Kc at this temperature is 0.26
Chemistry
1 answer:
inessss [21]2 years ago
8 0

Answer:

[H2O] = 0.0434 M

Explanation:

Step 1: Data given

Moles CH4 = 0.045 moles

Moles CO = 0.028 moles

Moles H2 = 0.084 moles

Volume = 0.32 L

Temperature = 1200 K

Kc = 0.26

Step 2: The balanced equation

CH4(g) + H2O(g) ⇆ CO(g) + 3H2(g)

Step 3: Calculate molarity at the equilibrium

[CH4] = 0.045 moles / 0.32 L = 0.141 M

[H2O] = ?

[CO] = 0.028 moles / 0.32 L = 0.0875 M

[H2] = 0.084 moles / 0.32 L = 0.263 M

Step 4: Calculate [H2O]

Kc = 0.26 = [CO][H2]³/[CH4][H2O]

0.26 = 0.0875*0.263³ / 0.141*[H2O]

0.26 = 0.0015917516125 / 0.141*[H2O]

0.141*[H2O] = 0.0015917516125 / 0.26 = 0.006122

[H2O] = 0.0434 M

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SashulF [63]

Answer:

Cl_2O, Cl_2O_3, ClO_2, ClO_3, Cl_2O_7

Explanation:

Empirical formula of the compound is the simplest ratio of elements present in the compound.

Empirical formula of compounds of chlorine with oxygen is as follows:

Compounds in which oxidation state of Cl is +1

Cl_2O

Compounds in which oxidation state of Cl is +3

Cl_2O_3

Compounds in which oxidation state of Cl is +4

ClO_2

Compounds in which oxidation state of Cl is +6

ClO_3

Compounds in which oxidation state of Cl is +7

Cl_2O_7

8 0
2 years ago
Identify a type of strong intermolecular force that exists between water molecules, but does not exist between carbon dioxide mo
timurjin [86]

Intermolecular forces of attraction hold the molecules together. These forces determine the physical properties of substances like melting and boiling points. There are five types of intermolecular forces: Hydrogen bonding, dipole-dipole interactions, ionic interactions, ion-dipole interactions and dispersion forces.

Hydrogen bonding is a stronger force of attraction between hydrogen atom and an electronegative atom (F, N, and O). So, water molecules exhibit hydrogen bonding.

In carbon dioxide molecules, although each C=O is polar the molecule as a whole will be non polar due to symmetry. Therefore, the only intermolecular forces in CO2 will be dispersion forces.

Hence, Hydrogen bonding exists between water molecules but not carbon dioxide molecules.

7 0
3 years ago
Explain why it is not a good idea to throw an arsenal canon to fire. Which gas law applies?
Feliz [49]

Answer:

is a class of heavy military ranged weapons built to launch munitions far beyond the range and power of infantry firearms. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility generally providing the largest share of an army's total firepower.

Explanation:

it could explode

6 0
2 years ago
Pls help tyy <br><br> How are NH 3 and O 2 reactants?<br><br> Explain your answer:
White raven [17]

Answer:

Here you go.

Explanation:

First of all, there are reactants and products…

Reactants are in the left side (in bold).

Products are on the right (without bold)

Example; NH3 + O2 → N2 + H2O

8 0
2 years ago
Read 2 more answers
A 25.0 mL sample of sulfuric acid is completely neutralized by adding 32.8 mL of 0.116 mol/L ammonia solution. Ammonium sulfate
Paul [167]

Answer:

0.08 mol L-1

Explanation:

Sulfuric acid Formula: H2SO4

Ammonia Formula: NH3

Ammonium sulfate Formula: (NH₄)₂SO₄

H2SO4 + 2NH3 = 2NH4+ + SO4 2-

H2SO4 + 2NH3 = (NH₄)₂SO₄

H2SO4 = (1/2)x (32.8 x 10^-3 L x 0.116 mol L-1)/25 x 10^-3 L

= 0.08 mol L-1

7 0
2 years ago
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