alleryIn a saturated solution of AgCl, [Ag+] = 1.26 × 10⁻⁵. If KNO3 is added (no common ion), solubility of AgCl:
AStays exactly the same
BIncreases slightly due to salt effect
CDecreases
DBecomes zero
Answer & Solution
Correct answer: B. Increases slightly due to salt effect
Adding non-common-ion salt (KNO3) increases ionic strength, slightly decreasing activity coefficients of Ag+ and Cl-, allowing more AgCl to dissolve (salt effect).
The increase is small but real.
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