Question

If the pH of a solution is decreased from 9 to 8, it means that the concentration of _____. If the pH of a solution is decreased from 9 to 8, it means that the concentration of _____. H has increased tenfold (10X) compared to what it was at pH 9 H has decreased to one-tenth (1/10) what it was at pH 9 OH- has increased tenfold (10X) compared to what it was at pH 9 H has doubled compared to what it was at pH 9

Answer 1

Acidity. As you go down it’s more of an acid as you go up it becomes more of a base

Answer 2

Step-by-step explanation:

We know that the relation between pH and concentration of hydrogen ions is as follows.

pH =
`-log [H^(+)]`

or, pH =
`log (1)/([H^(+)])`

As, pH is inversely proportional to the concentration of hydrogen ion. So, a decrease in the pH value will lead to an increase in tenfold (10X) compared to what it was at pH 9.

Thus, we can conclude that if the pH of a solution is decreased from 9 to 8, it means that the concentration of H has increased tenfold (10X) compared to what it was at pH 9.