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You have 200 ml of 0.1M HEPES buffer, pH 7.5. You add 2 ml of 0.4M...

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Chemistry

You have 200 ml of 0.1M HEPES buffer, pH 7.5. You add 2 ml of0.4M HCl. The pKa of HEPES is 7.5.

a) what will the resulting pH be?

b) what would the pH be if no HEPES were present (that is, youmixed water and HCl)?

Answer & Explanation Solved by verified expert
3.6 Ratings (337 Votes)
a Given the total initial concentration of the buffer solution 01 M Since pH pKa salt acid 01 M 2 005 M Hence initial moles of HEPES salt MxV 005 molL x 0200 L 001    See Answer
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