Question

A liquid has a pH of 6.8. Write the formula for calculating the [H+] and then determine the value of [H+], making sure to include units with your answer.

Answer 1

Explanation:

Formula to calculate pH is as follows.

                    pH = $-log[H^{+}]$

It is given that pH is 6.8. Therefore, calculate the concentration of hydrogen ions as follows.

                    pH = $-log[H^{+}]$

                    6.8 = $-log[H^{+}]$

      $[H^{+}]$ = antilog (-6.8)

                                 = $1.58 \times 10^{-7}$  molarity

Thus, we can conclude that $[H^{+}]$ is $1.58 \times 10^{-7}$ molarity.