Question

What is the pH of a solution with [H3O+]= (8.70x10^-5). Enter your answer in scientific notation and with three significant figures.

Answer 1

Hey there!:

We know that :

pH = - log [ H₃O⁺ ]

pH = - log [ 8.70 x 10⁻⁵ ]

pH = 4.06

Therefore pH is 4.06

I hope this will help !