What is the molar solubility of PbCl2 in a 0.10 M NaCl solution?
Correct: A
To calculate the molar solubility of PbCl2, we need to consider the common ion effect. The presence of 0.10 M NaCl increases the concentration of chloride ions, which reduces the solubility of PbCl2. Using the solubility product constant (Ksp) of PbCl2, we can calculate the molar solubility as approximately 0.014 M.