A Solution of NaF Is Added Dropwise to a Solution

question 111

Multiple Choice

A solution of NaF is added dropwise to a solution that is 0.0158 M in Ba²⁺.When the concentration of F^- exceeds ________ M,BaF₂ will precipitate.Neglect volume changes.For BaF₂,K_sp = 1.7 × 10^-6.

• A) 5.4 × 10^-5
• B) 1.0 × 10^-2
• C) 2.7 × 10^-8
• D) 2.6 × 10^-3
• E) 1.1 × 10^-4

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