Question

multiple choice
the ph scale measures:
o the potential of a system to release hydrogen ions
o the concentration of hydrogen ions in solution
o the concentration of hydroxyl ions in solution

Explanation:

The pH scale is defined as -log[H⁺], where [H⁺] is the hydrogen - ion concentration in a solution. It measures the acidity or basicity of a solution based on the hydrogen - ion concentration.

Answer:

the concentration of hydrogen ions in solution