PPT Slide
Ksp = 1x10-54 = [Pb2+]3[PO43-]2
= (3x)3(.001)2
= (27x3)(103-)2 = 27x10-6x3
x = (1x10-54/27x10-6)1/3
= (3.7x10-50)1/3 = 3.46x10-17
[Pb2+] = 3x 3.46x10-17 = 1.04x10-16 M
before (no common ion)
1.86x10-11M
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