Part A Complete the first row of the table. Express your answer using three sign

Question

Part A

Complete the first row of the table.

Express your answer using three significant figures.

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Part B

Complete the second row of the table.

Express your answer using two significant figures.

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Part C

Complete the third row of the table.

Express your answer using three significant figures.

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Consider the reaction:
N2(g)+3H2(g)2NH3(g)
Complete the table. Assume that all concentrations are equilibrium concentrations in moles per liter, M. T(K) [N2] [H2] [NH3] Keq 500 0.110 0.110 0.439 _____ 575 0.125 _____ 0.118 7.6 775 0.110 0.175 _____ 0.0784

Part A

Complete the first row of the table.

Express your answer using three significant figures.

Keq =

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Part B

Complete the second row of the table.

Express your answer using two significant figures.

[H2] =   M  

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Part C

Complete the third row of the table.

Express your answer using three significant figures.

[NH3] =   M  

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Explanation / Answer

1st row

K = [NH3]^2 /([N2][H2]^3)

K = (0.439^2)/((0.11)(0.11^3))

K = 1316.31

B)

Row 2

K = [NH3]^2 /([N2][H2]^3)

K = 7.6

7.6= [0.118]^2 /([0.125][H2]^3)

[H2]^3 = (0.118^2)/(7.6) / 0.125 = 0.014656

[H2] = (0.014656)^(1/3) = 0.2447 M

c)

K = [NH3]^2 /([N2][H2]^3)

0.0784 = (NH3^2) / ((0.11)(0.175^3))

0.0784*((0.11)(0.175^3)) = [NH3]^2

[NH3] = sqrt(0.00004621) = 0.0067977 M

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