Question

The solubility product, K_sp, for Ag₃PO ₄ is 2.8 × 10^–18. What is the solubility of Ag₃PO₄ in water, in moles per litre?

Select one:

a. 1.8 × 10^–5 mol L^–1

b. 2.5 × 10^-5 mol L^-1

c. 1.9 × 10^-86 mol L^-1

d. 3.1 × 10^-5 mol L^-1

^{please show workings thank you}

Answer 1

            

Concentration Initial                  s                  0              0

Concentration Final                    0                 3s             s

taking 1/4th root on both sides we get

Hence the correct answer is Option A