Consider the Following Equilibria $\rightleftharpoons$ Pb²⁺(aq) + 2 Br^-(aq)
K₁ = 6

Consider the following equilibria.
PbBr₂(s) $\rightleftharpoons$ Pb²⁺(aq) + 2 Br^-(aq)
K₁ = 6.6 × 10^-6
Pb(OH) ₂(s) $\rightleftharpoons$ 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) $\rightleftharpoons$ 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