?

General Chemistry

Free Version

Upgrade subject to access all content

Difficult

pH of a Triprotic Acid solution

CHEM-KHNL8K

What is the pH of a $0.30 M$ solution of Citric Acid $H_{3}C_{6}H_{5}O_{7}$?

For citric acid, $K_{a}(1)=7.5 \space \times \space 10^{-4}, K_{a}(2)=1.7 \space \times \space 10^{-5}, $ $K_{a}(3)=4.0 \space \times \space 10^{-7}.$

A

$1.8$

B

$3.1$

C

$4.8$

D

$6.4$