If the solubility of lithium sodium hexafluoride aluminate, Li3Na3(AlF6)2 is ′s′ mol/L, its solubility product is equal to :
A
729s8
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B
18s3
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C
3900s8
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D
2916s8
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Solution
The correct option is D2916s8 Solubility product is the maximum product of the ionic concentrations or activities of an electrolyte. Li3Na3(AlF6)2→3Li++3Na++2[AlF6]3−3s3s2s Ksp=(3s)3(3s)3(2s2)=2916s8