Solid {\Ba} ( {\NO}_3) _2 is gradually dissolved in a 1.0 imes 10^{-4} {\M} {\Na}_2 {\CO}_3 solution. At what concentration of {\Ba}^{2+} will a precipitate begin to form ?
( {\K}_{ { sp}} ext{ for } {\BaCO}_3=5.1 imes 10^{-9})
[AIEEE 2009]

Question

Solid {\Ba} ( {\NO}_3) _2 is gradually dissolved in a 1.0 	imes 10^{-4} {\M} {\Na}_2 {\CO}_3 solution. At what concentration of {\Ba}^{2+} will a precipitate begin to form ?
( {\K}_{ { sp}} 	ext{ for } {\BaCO}_3=5.1 	imes 10^{-9})
[AIEEE 2009]

Examsnet · Accepted Answer

Correct Answer is : 5.1×10−5M

AIEEE 2009 Solved Paper