What is the ph of a 0.0075 m concentration of hydrochloric acid hcl? 0.50 1.1 2.1 3.2?

The chemical formula for the hydrochloric acid is HCl. The concentration of H + in the solution is also equal to the concentration of the compound.

concentration of H + = 0.0075M

The pH is calculated through the equation,

pH = - log[H+]

where [H+] is the concentration.

Substituting the known values,

pH = - log (0.0075M) = 2.12

Thus, the pH of the given hydrochloric acid is 2.1. The answer is the third choice.