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Estimating the pH of a buffer solution

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Use the Henderson-Hasselbalch equation to estimate the pH of the following buffer solutions prepared from hydrofluoric acid (in the following referred to as ACID) and sodium fluoride (referred to as SALT).

(a) Put 7.282 g of ACID and 32.10 g of SALT into a volumetric flask, and fill with water to the 1 L mark.
(b) Put 7.282 g of ACID and 82.53 g of SALT into a volumetric flask, and fill with water to the 1 L mark.
(c) Put 7.282 g of ACID and 151.3 g of SALT into a volumetric flask, and fill with water to the 1 L mark.

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This solution provides calculations for questions regarding pH estimation.

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Henderson-Hasselbalch equation

pH = pka + log [Salt]/[Acid]

(a) PH ...

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