21 / 152
pH
12
pH
2
pH
5
+
pH
8
pH
7
pH
1
pH
2
pH
3
pH
4
pH
5
pH
6
pH
7
pH
8
pH
9
pH
10
pH
11
pH
12
|
|
21 / 152
pH
12
pH
2
pH
5
+
pH
8
pH
7
pH
1
pH
2
pH
3
pH
4
pH
5
pH
6
pH
7
pH
8
pH
9
pH
10
pH
11
pH
12