Chemistry

Problem

At 25 °C the solubility–product constant for

\mathrm{BaSO}_4

K_{sp}=1.1\times10^{-10}

. What is the maximum equilibrium concentration of

\mathrm{Ba}^{2+}

ions that can exist in a solution already containing

0.050\,\text{M}\,\mathrm{SO}_4^{2-}

? (Assume the sulfate concentration remains effectively

0.050\,\text{M}

.) a)

4.4\times10^{-8}\,\text{M}

2.2\times10^{-9}\,\text{M}

1.0\times10^{-5}\,\text{M}

5.0\times10^{-12}\,\text{M}