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0.75 moles of HF and 1.00 mole of NaF were added to 1.00 L of water....

0.75 moles of HF and 1.00 mole of NaF were added to 1.00 L of water. To this solution was added 0.300 mols of HCl. What was the final pH of the solution? Give your answer to two decimal places

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