Solid `Ba(NO_(3))_(2)` is gradually dissolven in `1.0xx10^(-4)` M `Na_(2)CO_(3)` solution. At what concentration of `Ba^(2+)` wi

Solid `Ba(NO_(3))_(2)` is gradually dissolven in `1.0xx10^(-4)` M `Na_(2)CO_(3)` solution. At what concentration of `Ba^(2+)` will a precipitate begin to form?
(`K_(sp)` for `BaCO_(3)=5.1xx10^(-9)`)
A. `5.1xx10^(-5)` M
B. `8.1xx10^(-9)` M
C. `8.1xx10^(-7)` M
D. `4.1xx10^(-5)` M

Solid `Ba(NO_(3))_(2)` is gradually dissolven in `1.0xx10^(-4)` M `Na_(2)CO_(3)` solution. At what concentration of `Ba^(2+)` will a precipitate begin

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