A mixture initially contains A, B, and C in the following concentrations: [A] = 0.300 M...

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A mixture initially contains A, B, and C in the followingconcentrations: [A] = 0.300 M , [B] = 1.30 M , and [C] = 0.400 M .The following reaction occurs and equilibrium is established:A+2Bâ‡ŒC At equilibrium, [A] = 0.170 M and [C] = 0.530 M . Calculatethe value of the equilibrium constant, Kc.

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4.4 Ratings (934 Votes)

Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â A +Â Â Â Â 2 B <=======>Â Â C

IÂ Â Â Â Â Â Â Â Â Â Â Â Â 0.3Â Â Â Â Â Â Â 1.3Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.4

CÂ Â Â Â Â Â Â Â Â Â Â Â -xÂ Â Â Â Â Â Â Â Â Â -2xÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â +x

EÂ Â Â Â Â Â Â Â Â Â Â 0.3-xÂ Â Â Â Â Â 1.3-2xÂ Â Â Â Â Â Â Â Â Â Â Â Â Â Â 0.4 +x

but at equilibrium A is already given

0.3-x = 0.17

x = 0.3 - 0.17 = 0.13

[B] = 1.3-2xÂ Â = 1.3 - 2(0.13)Â Â = 1.3 - 0.26 = 1.04M

[C] = 0.4 + 0.13 = 0.53

Kc = [C] / [A] [B]²

Kc = [0.53] / [0.17][1.04]²

= 0.53 / 0.1838

Kc = 2.88

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A mixture initially contains A, B, and C in the following concentrations: [A] = 0.300 M...

Free

80.2K

Verified Solution

Question

Chemistry

A mixture initially contains A, B, and C in the followingconcentrations: [A] = 0.300 M , [B] = 1.30 M , and [C] = 0.400 M .The following reaction occurs and equilibrium is established:A+2Bâ‡ŒC At equilibrium, [A] = 0.170 M and [C] = 0.530 M . Calculatethe value of the equilibrium constant, Kc.

Answer & Explanation Solved by verified expert

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