ન્યૂનતમ $ {\text{[B}}{{\text{a}}^{ + {\text{2}}}}][CO_3^{2 - }] = {K_{sp}} = 5.1 \times {10^{ - 9}}$
$\therefore \,\,[B{a^{ + 2}}][{10^{ - 4}}M] = 5.1 \times {10^{ - 9}}$ અથવા ${\text{[B}}{{\text{a}}^{{\text{2}} + }}{\text{]}} = {\text{5}}{\text{.1}} \times {\text{1}}{{\text{0}}^{{\text{ - 5}}}}{\text{ }}$