实验编号 |
① |
② |
③ |
④ |
⑤ |
⑥ |
⑦ |
⑧ |
⑨ |
溶质质量分数 |
2% |
2% |
2% |
6% |
6% |
6% |
10% |
10% |
10% |
水的温度/℃ |
20 |
40 |
60 |
20 |
40 |
60 |
20 |
40 |
60 |
溶液 pH |
10.90 |
11.18 |
11.26 |
11.08 |
11.27 |
11.30 |
11.22 |
11.46 |
11.50 |
A.12%、60℃ B.8%、40℃ C.0%、70℃