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Solid Ba (NO(3))(2) is gradually dissolv...

Solid Ba `(NO_(3))_(2)` is gradually dissolved in 1 `1.0 xx 10^(-4)M " " Na_(2)CO_(3)` solution. At what concentration of `Ba^(2+)` will a precipitate begin to form ? `(K_(sp) " for " Ba CO_(3) = 5.1 xx 10^(-9))`

A

`5.1xx10^(-5)`

B

`8.1xx10^(-8)`

C

`8.1xx10^(-7)`

D

`4.1xx10^(-5)`

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The correct Answer is:
A
`N//A`
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