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22-04-2024
Chemistry

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What is the molar solubility of calcium fluoride in a buffer solution containing 0.45MHF (formic acid) and 0.20MNaF at 25 deg C? Ksp for CaF₂ is 3.4 times 10⁻¹¹, Ka for HF is 6.8 times 10.

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