Consider the Following Equilibria

question 40

Multiple Choice

Consider the following equilibria. PbBr₂(s) Pb²⁺(aq) + 2 Br^-(aq)
K₁ = 6.6 × 10^-6
Pb(OH) ₂(s) Pb²⁺(aq) + 2 OH^-(aq)
K₂ = 1.4 × 10^-15
Determine the equilibrium constant,K_c,for the reaction below.
PbBr₂(s) + 2 OH^-(aq) Pb(OH) ₂(s) + 2 Br^-(aq)

• A) 9.2 × 10^-21
• B) 2.1 × 10^-10
• C) 6.6 × 10^-6
• D) 4.7 × 10⁹
• E) 1.1 × 10²⁰

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