MEDIUMMCQ SINGLEJEE Mains ChemistryPhysical ChemistryIonic equilibriumSalt Hydrolysis
What is the solubility of calcium fluoride in a saturated solution if its solubility product is 3.2 × 10–11
A.2.0 × 10–4 mole/litre✓ Correct
B.12.0 × 10–3 mole/litre
C.0.2 × 10–4 mole/litre
D.2 × 10–3 mole/litre
Explanation
The solubility product of calcium fluoride is given. Therefore, the solubility can be found as- + 2 2 2 sp 11 2 3 12 3 12 3 12 4 CaF Ca 2F K [Ca ][F ] 3.2 10 [ ][2 ] 4 32 10 8 10 8 10 2 10 x x x x x x x x x x x Preferential precipitation of salts
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