The K_sp of Aluminum Hydroxide,Al(OH)₃,is 2 × 10−³¹

Multiple Choice

The K_sp of aluminum hydroxide,Al(OH) ₃,is 2 × 10−³¹.What pH is required to limit the Al³⁺ concentration to less than or equal to 1 × 10−¹⁰ M?

A) 3.6
B) 6.4
C) 7.1
D) 7.8
E) 11.5