What Is the Maximum Amount of Sodium Sulfate That Can

Multiple Choice

What is the maximum amount of sodium sulfate that can be added to 1.00 L of 0.0020 M Ca(NO₃) ₂ before precipitation of calcium sulfate begins? K_sp = 2.4 × 10^-5 for calcium sulfate.

A) 1.2 × 10^-2 mol
B) 4.9 × 10^-3 mol
C) 3.5 × 10^-3 mol
D) 1.2 × 10^-5 mol
E) 4.8 × 10^-8 mol