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Question: the solubility of two slightly soluble salts of m2 ...

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The solubility of two slightly soluble salts of M2+ , MA and MZ2, are the same, 4×10−4 mol/L.

Which has the larger numerical value for the solubility product constant?

MA has the larger numerical value for the solubility product constant.
MZ2 has the larger numerical value for the solubility product constant.
The numerical value for the solubility product constant is the same for two salts.

In a saturated solution of each salt in water, which has the higher concentration of M2+?

MZ2 has the higher concentration of M2+.
MA has the higher concentration of M2+.
The concentration of M2+ is the same in the two saturated solutions.

If you added an equal volume of a solution saturated in MA to one saturated in MZ2, what would be the equilibrium concentration of the cation, M2+?

The [M2+] decreases.
The [M2+] increases.
The [M2+] remains the same.
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