# Chemistry

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In a saturated solution of silver phosphate, the concentration of silver ion is 4.5 x 10^-4 mol/L. The Ksp of silver phosphate would be which of the following?

6.8  10-8 1.0  10-11
1.4  10-14 none of the above
1.5  10-15

In a saturated solution of aluminum hydroxide, the concentration of aluminum ion is 2.4 x 10^-8 mol/L. The Ksp of aluminum hydroxide would be?

In a saturated solution of PbBr2, the concentration of Br1- is 8.2 x 10^-2 mol/L. The [Pb2+] in mol/L is?

• Chemistry -

n a saturated solution of silver phosphate, the concentration of silver ion is 4.5 x 10^-4 mol/L. The Ksp of silver phosphate would be which of the following?

Ag3PO4 ==> 3Ag^+ + PO4^-3
Ksp = (Ag^+)^3(PO4^-3)
(Ag^+) from the problem is 4.5 x 10^-4.
(PO4^-3) = 1/3 of that.
Substitute into Ksp and solve.

• Chemistry -

In a saturated solution of aluminum hydroxide, the concentration of aluminum ion is 2.4 x 10^-8 mol/L. The Ksp of aluminum hydroxide would be?
Same process as Ag3PO4.

In a saturated solution of PbBr2, the concentration of Br1- is 8.2 x 10^-2 mol/L. The [Pb2+] in mol/L is?

PbBr2 ==> Pb^+2 + 2Br^-

Ksp = (Pb^+2)(Br^-)^2
Shouldn't (Pb^+2) = 1/2 the Br^-?