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AgCrO4 --------> Ag+ + CrO4-
10^-4 10^-4 10^-4
Ksp=[Ag+] [CrO4-]
=10^-4 x 10^-4
=10^-8
kelarutan dalam NaCrO4
s=Ksp/[CrO4-]
=10^-8/[CrO4-]
misal konsentrasi NaCrO4 0,01 M
s=10^-8/10^-2 = 10^-6 M