Lead Ions Can Be Precipitated from Aqueous Solutions by the Addition

question 81

Multiple Choice

Lead ions can be precipitated from aqueous solutions by the addition of aqueous iodide: Pb²⁺(aq) + 2 I^-(aq) → PbI₂(s)
Lead iodide is virtually insoluble in water so that the reaction appears to go to completion.How many milliliters of 1.500 M HI(aq) must be added to a solution containing 0.300 mol of Pb(NO₃) ₂(aq) to completely precipitate the lead?

• A) 2.50 × 10^-3 mL
• B) 400 mL
• C) 200 mL
• D) 0.200 mL
• E) 0.400 mL

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