If 128 G Lead(II) Sulfate 303

If 12.8 g lead(II) sulfate 303.26 g/mol) precipitates when excess potassium chloride is added to 1.65 L of a water sample, what is the molar concentration of Pb^₂+ in the sample?

A) 0.0696 M
B) 0.0422 M
C) 0.0256 M
D) 0.129 M
E) 0.776 M