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How many moles of HCl need to be added to 200.0 mL of a 0.200 M solution of NaF to make a buffer with a pH of 2.80? (Ka for HF is 6.8 × 10⁻⁴)
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How many moles of HCl need to be added to 200.0 mL of a 0.200 M solution of NaF to make a buffer wit...
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