Question

Calculate the ratio of degree of dissociation $\left(a\right)$ when $1M$ acetic acid solution is diluted to times.

[Given: $K_p=1.8\times {10}^{-3}$].

Answer 1

The ocetic acid is a weak acid,

For weak acids, degree of dissociation $\left(\alpha \right)$ is $\alpha =\sqrt{\frac{K_P}{C}}$

$\alpha =\sqrt{\frac{1.8\times {10}^{-3}}{1}}=0.0424$