Chemistry

Problem

K_{sp}

for

\text{SrF}_2 = 2.8 \times 10^{-9}

25^\circ\text{C}

. How much NaF should be added to 100 mL of solution having 0.016 M in

\text{Sr}^{2+}

ions to reduce its concentration to

2.5 \times 10^{-3}