How many moles of solid NaF would have to be added to 1.0 L of 2.39 M HF solution to achieve a buffer of pH 3.35? Assume there is no volume change.(K_a for HF = 7.2 $\times$ 10^-4) A) 3.9 B) 0.50 C) 0.67 D) 1.0 E) 1.6

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The Answer of How many moles of solid NaF would have to be added to 1.0 L of 2.39 M HF solution to achieve a buffer of pH 3.35? Assume there is no volume change.(K_a for HF = 7.2 $\times$ 10^-4) A) 3.9 B) 0.50 C) 0.67 D) 1.0 E) 1.6

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