Question

Which has the highest concentration of protons (aka H

+
ions) in solution per unit volume (e.g. per teaspoon)? a. a solution with pH5 b. a solution with pH3 c. a solution with pH4 d. pure water e. ammonia

Answer 1

b. A solution with pH 3.

Step-by-step explanation:

A solution with pH 3 would have the highest concentration of protons per unit volume. Lowering the pH by two units (from pH 5 to pH 3) indicates a tenfold increase in the concentration of protons. Therefore, a solution with pH 3 would have a higher concentration of protons compared to the other options.