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saveliy_v [14]
3 years ago
11

If 10.23 moles of NH3 were produced, how many moles of N2 would be required?

Chemistry
1 answer:
Dima020 [189]3 years ago
3 0

Answer:

the number of moles of N_2 required is 5.12 moles

Explanation:

The computation of the number of moles of N_2 required is shown below:

N₂ +  3H₂ → 2NH₃

Here the nitrogen moles and hydorgen would be compared  

NH₃  :  N₂

2 :  1

10.23  : 1 ÷ 2 × 10.23 = 5.12mol

Hence, the number of moles of N_2 required is 5.12 moles

Therefore the same would be considered and relevant too

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Initial moles of hydrogen gas = 0.100 moles

Volume of container = 1.00 L

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\text{Molarity of solution}=\frac{\text{Number of moles}}{\text{Volume}}

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\text{Molarity of hydrogen gas}=\frac{0.1mol}{1L}=0.1M

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                         H_2+I_2\rightleftharpoons 2HI

<u>Initial:</u>                0.1    0.1

<u>At eqllm:</u>          0.1-x   0.1-x   2x

Evaluating the value of 'x'

\Rightarrow (0.1-x)=0.0210\\\\\Rightarrow x=0.079M

The expression of K_c for above equation follows:

K_c=\frac{[HI]^2}{[H_2][I_2]}

[HI]_{eq}=2x=(2\times 0.079)=0.158M

[H_2]_{eq}=(0.1-x)=(0.1-0.079)=0.0210M

[I_2]_{eq}=0.0210M

Putting values in above expression, we get:

K_c=\frac{(0.158)^2}{0.0210\times 0.0210}\\\\K_c=56.61

Hence, the value of equilibrium constant for the given reaction is 56.61

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