Question

What does pH measure?

the total number of acid molecules in solution

the concentration of hydrogen ions in solution

the concentration of oxygen atoms in solution

Answer 1

I believe the answer is : The Concentration of Hydrogen Irons in Solution.

Step-by-step explanation:

pH means "potential of hydrogen" and is used to specify the acidity or basicity of an aqueous solution.

Answer 2

Ph is the measure of hydrogen ions