题目内容

下列饱和溶液中,SO42-离子浓度最小的是(括号内为溶度积)________

A. BaSO4(1.1 × 10-10)
B. CaSO4(9.1 × 10-6)
C. PbSO4(1.6 × 10-8)
D. Ag2SO4(1.4 × 10-5)

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