Compared to a 1.0-liter aqueous solution with a pH of 7.0, a 1.0-liter aqueous solution with a pH of 5.0 contains10 times more hydronium100 times more hydronium10 times more hydroxide100 times more hydroxide

The a solution having pH = 7 has 100 times more hydroxide ions than in a solution having pH = 5

Explanation:

pH is defined as the negative logarithm of hydrogen ion concentration present in the solution.

Mathematically,

pOH is defined as the negative logarithm of hydroxide ion concentration present in the solution.

Mathematically,

Putting values in above equation, we get:

Putting values in above equation, we get:

Taking the ratio of hydrogen ion for both the pH:

To calculate the pOH, we use the equation:

pOH = 14 - 7 = 7

Putting values in above equation, we get:

pOH = 14 - 5 = 9

Putting values in above equation, we get:

Taking the ratio of hydrogen ion for both the pH:

Hence, the a solution having pH = 7 has 100 times more hydroxide ions than in a solution having pH = 5