Question

What is the pH of a 5.4 x 10-3 M HCl solution?
A. 2.3
B. 3.3
C. 3.7
D. 11.7​

Answer 1

Answer: A. 2.3

Step-by-step explanation:

pH of a solution is given by the following mathematical expression;

pH = - Log [ H+]

= -Log [ 5.4 x 10-3]

= 3 - 0.7324

pH = 2.27 aprrox 2.3