Question

Calculate the pH of a C6H5OH phenol solution, whose hydronium ion concentration [H3O +] is 1.8 x 10e-5 M

Answer 1

Answer: The pH of phenol solution is 4.7

Explanation:

pH or pOH is the measure of acidity or alkalinity of a solution.

pH is calculated by taking negative logarithm of hydronium ion concentration.

$pH=-\log [H_3O^+]$

Given : $[H_3O^+]=1.8\times 10^{-5}M$

Putting in the values we get

$pH=-\log[1.8\times 10^{-5}M]$

$pH=4.7$

Thus pH of phenol solution is 4.7