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 \({\text{[B}}{{\text{a}}^{{\text{2}} + }}{\text{]}} = {\text{5}}{\text{.1}} \times {\text{1}}{{\text{0}}^{{\text{ - 5}}}}{\text{ }}\)