Calculate the solubility of silver phosphate in mg per mL in pure water and in a solution of 0.3 Molar AgNO₃.
A) 0.5 mg/mL and 0.1 mg/mL
B) 1 mg/mL and 0.2 mg/mL
C) 1.5 mg/mL and 0.3 mg/mL
D) 2 mg/mL and 0.4 mg/mL