Describe the henderson-hasselbach equation

Reference no: EM13230445

Using the Henderson-Hasselbach equation, calculate the volume of 0.10 M Na2HPO4 and 0.10 M NaH2PO4 that would be required to make 100.0 mL of a 0.10 M (total phosphate concentration i.e. HPO4 + H2PO4) buffer with a pH of 6.91.

(Ka for H3PO4 =7.5x10^-3)

(Ka for H2PO4=6.2x10^-8)

(Ka for HPO4=4.2x10^-13)

Reference no: EM13230445

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