A500 ml solution of 0.10 m acetic acid (pka 4.76) is at ph 4.94. what is the ratio of conjugate base to acid or a–/ha?

Answer : The ratio of the conjugate base to acid is 1.513.

Solution :

Given data,

pH = 4.94

pKa = 4.76

The Henderson-Hasselbalch equation is used as follows:

  .........(1)

Substitute the given values in equation (1) , we get the ratio of conjugated base to acid :

Thus , the answer is 1.513.

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