# Chemistry

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The Ka for hydroflouric acid is 4.5 *10^-4 at 298K. Calculate the amount of sold NaF that is required toprepare a 250. mL acidic buffer with pH = 2.75. The inital molarity of hydroflouric acid is .250M but you have only 75mL.

• Chemistry -

Jake, I've worked this problem twice in the last two or three hours. Were you one of the posters. If so, please tell me what you don't understand about it.

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