Question
Asked Nov 20, 2019
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What is the pH of a buffer with that has a formic acid concentration of 0.75 M and a sodium formate concentration of 0.75 M? The pKof formic acid 3.74.

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Expert Answer

Step 1

To calculate the pH value using Henderson-Hasselbalch equation as follows:

pH=pKa +log(A)/[HA]
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pH=pKa +log(A)/[HA]

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Step 2

the given data as...

formic acid concentration 0.75M
sodium format concentration = 0.75 M
pKa of formic acid 3.74
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formic acid concentration 0.75M sodium format concentration = 0.75 M pKa of formic acid 3.74

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