Some chemists at ISRO wished to prepare a saturated solution of a silver compound and they wanted it to have the highest concentration of silver ion possible. Which of the following compounds, would t

Question

Some chemists at ISRO wished to prepare a saturated solution of a silver compound and they wanted it to have the highest concentration of silver ion possible. Which of the following compounds, would they use? sp K AgCl 1.8 10 , x sp K AgBr 5.0 10 x sp K Ag CrO 2.4 10 x

Prashant Kotian · Accepted Answer

Correct answer: C. For binary salts (like AgCl, AgBr) sp s K Solubility of AgCl = 30 1.8 10 x 5 1.34 10 mol / L x Solubility of AgBr = 23 5.0 10 x 7 7.1 10 mol / L x For Ag2CrO4, Ksp = 4s3 Solubility of Ag2CrO4 12 sp 3 15 3 3 5 K 2.4 10 600 10 4 4 8.44 10 mol / L x x x As Ag2CrO4 bas maximum solubility, it will give maximum Ag+ ions in solubility. Hence, it will be used.

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