What Is the Maximum Volume of 8

question 57

Multiple Choice

What is the maximum volume of 8.6 × 10^-5 M K₂CrO₄ that,added to 40.4 mL of a solution that is 5.1 × 10^-5 M Ba(NO₃) ₂ and 1.5 × 10^-6 M Pb(NO₃) ₂,will precipitate PbCrO₄ but not BaCrO₄? For PbCrO₄,K_sp = 1.8 × 10^-14,and for BaCrO₄,K_sp = 1.2 × 10^-10.

• A)40 mL
• B)1.1 mL
• C)1.0 mL
• D)0.0056 mL
• E)37 mL

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