Waec Model Questions Vol1 2025 Chemistry Question 31
Practice objective / multiple choice question 31 from the 2025 Waec Model Questions Vol1 Chemistry examination.
The solubility product (Ksp) of calcium fluoride (CaF₂) is 3.9×10⁻¹¹ at 25 °C and 5.0×10⁻¹¹ at 35 °C. A solution already contains 0.10 M NaF. Assuming the common‑ion effect and that the additional fluoride from CaF₂ dissolution is negligible, at which temperature will more CaF₂ dissolve, and what is the molar solubility of CaF₂ at that temperature?
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This is Waec Model Questions Vol1 2025 Chemistry Question 31. It is one of the objective questions from the 2025 Waec Model Questions Vol1 Chemistry examination.
Difficulty level: Medium .
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