Jawabanmu

2014-04-28T09:00:17+07:00
Ag3PO4 --> 3Ag^+ + PO4^3- 
[Ag3PO4] = a mol/L 
[Ag+] = 3 x [Ag3PO4] = 3a 
[PO4^3-] = [Ag3PO4] = a 

Ksp = [Ag+]^3 . [PO4^3-] = (3a)^3 .a = 9.a^4 

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