Consider an Aqueous Solution Which Is 0

question 38

Multiple Choice

Consider an aqueous solution which is 0.020 M in Pb²⁺ and 0.20 M in Ag⁺. If concentrated potassium iodide solution (so that volume changes may be neglected) is added gradually with good stirring to this solution, which precipitate will form first? Ksp for PbI2 = 7.1 × 10^-9; for AgI = 8.31 × 10^-17

• A) PbI₂
• B) KI
• C) AgI
• D) PbI₂ and AgI precipitate together
• E) Ag₂[PbI₄]

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