The solublity of unknown salt MXn is 2*10-8M and its solublity product is 4.32*10-30.Formula of the salt is?????
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1 Answers
1357MXn [eq] Mn++nX-
S nS
Ksp=S(nS)n=4.32*10-30
(n*2*10-8)n=4.32*10-30/(2*10-8)=2.16*10-22
By trial and error you can find the answer
as there is 10-8 is on the LHS and 10-22 on the RHS, n=3 would be a good guess and it will give the answer
so formula is MX3
