For an aqueous solution containing a weak base and its completely soluble salt (where is derived from a strong acid), which of the following are true consequences of the common ion effect?

Question

For an aqueous solution containing a weak base $BOH$ and its completely soluble salt $BA$ (where $A^-$ is derived from a strong acid), which of the following are true consequences of the common ion effect?

Prashant Kotian · Accepted Answer

Correct answer: A,B,C. The strong salt completely dissociates to give , which acts as a common ion. The high shifts the equilibrium strongly backward. This reduces the degree of dissociation and lowers the equilibrium . A lower directly corresponds to a higher .

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