Question

What is the correct representation of Handerson Haselbalch's equation for acidic buffer?

Answer 1

Acidic buffer

• To prepare a buffer of acidic pH we use weak acid and its salt formed with a strong base.

Handerson Haselbalch's equation for acidic buffer

• The equation for the acidic buffer is as follows:-

$\text{pH}={\text{pK}}_{\text{a}}\text{+log}\frac{\left[{\text{Conjgugate base,A}}^{-}\right]}{\left[\text{Acid,HA}\right]}$

• Here, $\frac{\left[{\text{A}}^{-}\right]}{\left[\text{HA}\right]}$ is the ratio of the concentration of conjugate base (anion) of the acid and the acid present in the mixture.