A Solution of NaF Is Added Dropwise to a Solution

question 7

Multiple Choice

A solution of NaF is added dropwise to a solution that is 0.0144 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) 1.1 × 10^{- 2}
• B) 1.2 × 10^{- 4}
• C) 2.4 × 10^{- 8}
• D) 2.7 × 10^{- 3}
• E) 5.9 × 10^{- 5}

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