How Many Moles of Fe(OH)₂ [K_sp = 1

Multiple Choice

How many moles of Fe(OH) ₂ [K_sp = 1.8 × 10^-15] will dissolve in 1 L of water buffered at pH = 12.00?

A) 1.8 × 10^-11 mol
B) 1.8 × 10^-9 mol
C) 5.0 × 10^-12 mol
D) 8.0 × 10^-6 mol
E) 4.0 × 10^-8 mol