Waec Model Questions Vol1 2020 Chemistry Question 46
Practice objective / multiple choice question 46 from the 2020 Waec Model Questions Vol1 Chemistry examination.
The solubility product of calcium fluoride at 25 °C is Ksp = 1.5×10⁻¹⁰. The solution already contains 0.10 M NaF. (a) Calculate the maximum concentration of Ca²⁺ that can exist without CaF₂ precipitating. (b) If the temperature is raised so that Ksp doubles, what is the new maximum Ca²⁺ concentration? Express your answers in scientific notation to two significant figures.
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About This Question
This is Waec Model Questions Vol1 2020 Chemistry Question 46. It is one of the objective questions from the 2020 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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