Question

What is the ratio of the salt & acid concentration if the solution has a pH of 4.5 & pKa of 4.76?

Answer 1

pH$=$ pK_a $+$ log $\frac{[Salt]}{[Acid]}$

$4.5=4.76+log\>\frac{[Salt]}{[Acid]}$

Salt: Acid$=0.5495$