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A solution is 0.10 M in Ag+, Ca2+, Mg2+, and Al3+ ions. Which compound will precipitate at the lowes — Equilibrium Chemistry Question

Question

A solution is 0.10 M in Ag+, Ca2+, Mg2+, and Al3+ ions. Which compound will precipitate at the lowest [PO4 3-] when a solution of Na3PO4 is added?

A.

Ag3PO4 (Ksp = 1 × 10-16)

B.

Ca3(PO4)2 (Ksp = 1 × 10-33)

C.

Mg3(PO4)2 (Ksp = 1 × 10-24)

D.

AlPO4 (Ksp = 1 × 10-20)

✓ Correct
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