You are asked to prepare a pH = 3.75 buffer solution starting from 1.25 L of a 1.00 M solution of hydrofluoric acid (HF) and any amount you need of sodium fluoride (NaF). (a) What is the pH of the hydrofluoric acid solution prior to adding sodium fluoride? (b) How many grams of sodium fluoride should be added to prepare the buffer solution? (c) Solve using HHE and common ion and compare your results.

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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PROBLEM 3:
You are asked to prepare a pH = 3.75 buffer solution starting from 1.25 L of a 1.00 M
solution of hydrofluoric acid (HF) and any amount you need of sodium fluoride (NaF).
(a) What is the pH of the hydrofluoric acid solution prior to adding sodium fluoride?
(b) How many grams of sodium fluoride should be added to prepare the buffer solution?
(c) Solve using HHE and common ion and compare your results.
Transcribed Image Text:PROBLEM 3: You are asked to prepare a pH = 3.75 buffer solution starting from 1.25 L of a 1.00 M solution of hydrofluoric acid (HF) and any amount you need of sodium fluoride (NaF). (a) What is the pH of the hydrofluoric acid solution prior to adding sodium fluoride? (b) How many grams of sodium fluoride should be added to prepare the buffer solution? (c) Solve using HHE and common ion and compare your results.
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