The Common Ion Effect Predicts That the Solubility of a Salt

question 47

Multiple Choice

The common ion effect predicts that the solubility of a salt in a solution already containing one of the ions in the salt will be ____ than the solubility in water. This is predictable, because ____.

• A) more; Le Chatelier's Principle predicts that the common ion will suppress precipitation
• B) more; the presence of the common ion will increase that concentration, hence K_sp will fall
• C) less; Le Chatelier's Principle predicts that the common ion will suppress dissolving
• D) less; the presence of the common ion will increase that concentration, hence K_sp will rise
• E) less; at equilibrium, Q will be less than K_sp

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In logic, subcontraries refer to a pair of propositions in Aristotelian or traditional square of opposition that cannot both be false, although they can both be true.

Referents

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