Consider the reaction. A(aq) = 3 B(aq) Kc = 9.91 x 10-6 at 500 K If a 3.80 M sample of A is heated to 500 K, what i...

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science chemistry

Answer 1

Answer #1

A <—> 3B

3.80 0 (initial)

3.80-x 3x (at equilibrium)

Kc = [B]^3/[A]

9.91*10^-6 = (3x)^3 / (3.80-x)

Since Kc is small, x would be small

9.91*10^-6 = (3x)^3 / (3.80)

(3x)^3 = 3.77*10^-5

3x = 0.0335

x = 0.0112

[B] = 3x = 0.0335 M

Answer: 0.0335 M

Answer 2

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