The Ka value of hydrofluoric acid (HF) is 7.2 × 10−4 at 25°C. What is the pH of a solution made by adding 0.700 mol of H

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answerhappygod
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The Ka value of hydrofluoric acid (HF) is 7.2 × 10−4 at 25°C. What is the pH of a solution made by adding 0.700 mol of H

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The Ka value of hydrofluoric acid (HF) is 7.2 × 10−4 at 25°C.
What is the pH of a solution made by adding 0.700 mol of HF and
0.500 mol of NaF in enough water to make 750 mL of solution?
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