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Consider the Dissolution of MnS in Water (Ksp = 3

Question 93

Multiple Choice

Consider the dissolution of MnS in water (Ksp = 3.0 * 10¯14) . Consider the dissolution of MnS in water (K<sub>sp</sub> = 3.0 * 10¯<sup>14</sup>) . How is the solubility of manganese(II) sulfide affected by the addition of aqueous potassium hydroxide to the system? A) The solubility will be unchanged. B) The solubility will decrease. C) The solubility will increase. D) The amount of KOH added must be known before its effect can be predicted. E) The pK<sub>a</sub> of H<sub>2</sub>S is needed before a reliable prediction can be made. How is the solubility of manganese(II) sulfide affected by the addition of aqueous potassium hydroxide to the system?


A) The solubility will be unchanged.
B) The solubility will decrease.
C) The solubility will increase.
D) The amount of KOH added must be known before its effect can be predicted.
E) The pKa of H2S is needed before a reliable prediction can be made.

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