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Consider the following reaction, equilibrium concentrations, and equilibrium constant at a particular temperature. Determine the equilibrium concentration of SO2(g). 2 SO2(g) + O2(g) ⇌ 2 SO3(g) Kc = 1.7 × 108 [SO3]eq = 0.0034 M [O2]eq = 0.0018 M

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The  equilibrium concentration of SO2(g) is 1.9

Calculation of the  equilibrium concentration:

In this, the ratio of concentrations of the substancess should be on the right to the concentrations of those on the left and the same should be equivalent to the reaction

SInce

Kc = 1.7 x 108

[SO2]eq = 0.0034 M

[O2]eq = 0.0018 M

Now

Equilibrium constant,

Kc = [SO3]2/[SO2]2[O2]

, 1.7 x 108 = [SO3]2/(0.0034)2(0.0018)

[SO3] = 1.9

Hence, the equilibrium concentration of SO3(g) is 1.9 mol/L          

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