A Solution with a PH of 7

Question

A solution with a pH of 7.0 has ________ times ________ H⁺ than a solution of pH 10. A)30; more B)300; less C)1000; more D)1000; less E)None of these are correct.

Accepted Answer

A pH of 7.0 is neutral, while a pH of 10 is basic. The pH scale is logarithmic, so each unit change represents a tenfold change in H⁺ concentration. Therefore, a solution with a pH of 7 has 10^(10-7) = 1000 times more H⁺ ions than a solution with a pH of 10.

A solution with a pH of 7.0 has ________ times ________ H+ than a solution of pH 10.

A solution with a pH of 7.0 has times H⁺ than a solution of pH 10.