JEE MainChemistryModeratePhysical Chemistry

A solution of Na2CO3 is added drop by drop to one litre of a
solution containing 10-4 mole of Ba2+ and 10-5 mole of Ag+. If Ksp for
BaCO3 is 8.1 × 10-9 and Ksp for Ag2CO3 is 6.9 × 10-12, then which is
not true ? Assume no hydrolysis of CO32- ion.

Show answer and solution

For precipitation of Ag2CO3

\left\lbrack {CO}_{3}^{2 -} \right\rbrack = \frac{K_{SP}}{\left\lbrack {Ag}^{+} \right\rbrack^{2}} = \frac{6.9 \times 10^{- 12}}{\left\lbrack 10^{- 5} \right\rbrack^{2}} = 6.9 \times 10^{- 2}

and for precipitation of BaCO

Source: Grass-G / CH-28 Chemistry Paper FST 16 Jan.docx

Need a video for this idea?

Scan any doubt from your notes and get a whiteboard explanation.