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EquilibriumMCQ

H2S(aq) ⇌ H+(aq) + HS-(aq) K = 9.5 × 10-8 HS-(aq) ⇌ H+(aq) + S2–(aq) K = 1.0 × 10-19 Given the equilEquilibrium Chemistry Question

Question

H2S(aq) ⇌ H+(aq) + HS-(aq) K = 9.5 × 10-8
HS-(aq) ⇌ H+(aq) + S2–(aq) K = 1.0 × 10-19
Given the equilibrium constants provided, what is the equilibrium constant for the reaction; S2–(aq) + 2H+(aq) ⇌ H2S(aq) K = ?

A.

9.5 × 10-27

B.

9.7 × 10-14

C.

9.5 × 1011

D.

1.0 × 1026

✓ Correct
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