Neco Model Questions Vol1 2023 Chemistry Question 43
Practice objective / multiple choice question 43 from the 2023 Neco Model Questions Vol1 Chemistry examination.
A saturated solution of calcium fluoride at 25 °C contains \([\mathrm{Ca^{2+}}]=1.2\times10^{-3}\ \text{M}\). (a) Determine the solubility product \(K_{sp}\) of CaF₂. (b) If sodium fluoride is added so that \([\mathrm{F^-}]=0.10\ \text{M}\), calculate the new equilibrium concentration of \(\mathrm{Ca^{2+}}\). (c) When 250 mL of the original saturated solution is mixed with 250 mL of the 0.10 M NaF solution, how many grams of CaF₂ precipitate?
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About This Question
This is Neco Model Questions Vol1 2023 Chemistry Question 43. It is one of the objective questions from the 2023 Neco Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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