Asked by Raj

You have to prepare a pH 5.00 buffer, and you have the following 0.10M solutions available: HCOOH, HCOONa, CH3COOH, CH3COONa, HCN, and NaCN.

Which solutions would you use?


HCOOH
HCOONa
CH3COOH
CH3COONa
HCN
NaCN

Answers

Answered by DrBob222
Look up Ka values for HCOOH, CH3COOH, HCN and convert to pKa values. Good buffers are made with pKa values close to the pH needed.
Answered by Wenlin He
CH3COOH, CH3COONa
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