Suppose you have equal volumes of saturated solutions of Mg(OH) 2 , HCl, K 2 SO
ID: 997746 • Letter: S
Question
Suppose you have equal volumes of saturated solutions of Mg(OH)2, HCl, K2SO4 and NH3. Choose one solution in which the solubility of ZnS would be increased over its solubility in pure water. Then, choose one solution in which the solubility of ZnS would remain the same as its solubility in pure water.
So, I know ZnS is basically insoluble in water, but I cant find any data on the Ksp values for any of these other compounds mixed with zinc. Can someone help me with a strategy or perhaps link me to a resource that would have this data? And yes, I checked my textbook and it doesnt have it either.
Explanation / Answer
The solubility of ZnS increases in HCl due to formation of water soluble ZnCl2
The solubility of ZnS increases in NH3 due to formation of water soluble [Zn(NH3)4]2+ complex compound.
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