What is the pH of a solution made by dissolving 4.31 grams of calcium fluoride in...

Question

Question

What is the pH of a solution made by dissolving 4.31 grams of calcium fluoride in enough water to make 640 mL of solution? The Ka for HF is 6.8x10–4.

Answer 1

Answer #1

0.0553 mol moly- Mow 0.0863M noy of Cafz 4.31 g 789 Imol concentration : 0.0553mad 0.640L f = ax 0.08637 0.173 H₂O - HF + OH-

Answer 2

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