Lead Ions Can Be Precipitated from Aqueous Solutions by the Addition

question 226

Multiple Choice

Lead ions can be precipitated from aqueous solutions by the addition of aqueous iodide: (aq) + (aq) → (s) Lead iodide is virtually insoluble in water so that the reaction appears to go to completion. How many millilitres of 3.550 mol L^-1 HI(aq) must be added to a solution containing 0.700 mol of to completely precipitate the lead?

• A) 197 mL
• B) 0.197 mL
• C) 394 mL
• D) 0.394 mL
• E) 2.54 × 10^-3 mL

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