What is the pH or a solution with #[H^+] = 7.0 times 10^-7#?

1 Answer
Ryuu
Feb 1, 2017

pH of #6.2#.

Explanation:

The pH of a solution has a range of 0-7. Each step having a logarithmic relation.

Thus we use the following equation: #pH = -log[H^+]#

#pH = -log[H^+]#

#= -log[(7xx10^-7)]#

#=6.15490196#

#=6.2#

Therefore, the acid has a pH of #6.2#. This number is very close to #7#, so we can conclude it is a weak acid.

Hope this helps :)

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