pH | [H+(aq)]/mol dm-3 |
---|---|
-1 | 10 |
0 | 1 |
1 | 10^-1 |
2 | 10^-2 |
3 | 10^-3 |
4 | 10^-4 |
5 | 10^-5 |
6 | 10^-6 |
7 | 10^-7 |
8 | 10^-8 |
9 | 10^-9 |
10 | 10^-10 |
11 | 10^-11 |
12 | 10^-12 |
13 | 10^-13 |
14 | 10^-14 |
15 | 10^-15 |
pH is the negative power of [H+].
[H+(aq)] = 10^-pH
Hence, pH = -log[H+(aq)]
From the equation, we can see that a small pH indicates a large [H+(aq)], and vice versa.