At a certain temperature, the equilibrium constant, kc, for this reaction is 53.3. h2 (g) + i2 (g) â½âââ2hi (g) kc=53.3 at this temperature, 0.700 mol of h2 and 0.700 mol of i2 were placed in a 1.00-l container to react. what concentration of hi is present at equilibrium?

Question

Alannah

Chemistry

23 May, 04:56

At a certain temperature, the equilibrium constant, kc, for this reaction is 53.3. h2 (g) + i2 (g) â½âââ2hi (g) kc=53.3 at this temperature, 0.700 mol of h2 and 0.700 mol of i2 were placed in a 1.00-l container to react. what concentration of hi is present at equilibrium?

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Answers (1)

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Jakobe · Answer 1

5.11 mol/L.

Explanation:

For the reaction:

H₂ (g) + I₂ (g) ⇄ 2HI (g), Kc = 53.3.

∵ Kc = [HI]²/[H₂][I₂]

[H₂] = 0.70 mol/1.0 L = 0.70 mol/L.

[I₂] = 0.70 mol/1.0 L = 0.70 mol/L.

∵ Kc = [HI]²/[H₂][I₂]

∴ [HI]² = Kc[H₂][I₂] = (53.3) (0.70) (0.70) = 26.117.

∴ [HI] = √26.117 = 5.11 mol/L.