Question

The pH of an aqueous buffer prepared using CH3COOH and CH3COO Na+ is 4.80.
The quantity $\frac{[CH_3COO^-]-[CH_3COOH]}{[CH_3COOH]}$ is _____. (round off to three decimal places)
[Given: pKa of CH3COOH in water is 4.75]

Answer 1

The correct answer is: 0.121 or 0.123 (approx.)