It was found that the concentration of anions formed from the partial dissolving

Question

It was found that the concentration of anions formed from the partial dissolving of an ionic solid to form saturated solutions is less in the presence of a common ion than in pure water. Why is this true?

Select one:

a. The negative anions in the 0.01 M solution would repel other negative ions and thus prevent more dissolving.

b. This other source of anions must be considered and will cause the solution to become saturated with less solid dissolved than is the case if all ions came from dissolving the ionic solid.

c. There is no reason for this since the values shown in these questions were just numbers selected at random.

e. The other anions would give a super saturated solution.

Explanation / Answer

b. This other source of anions must be considered and will cause the solution to become saturated with less solid dissolved than is the case if all ions came from dissolving the ionic solid.

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