题型:单选题 题类:真题 难易度:普通
北京市2020年中考化学试卷
温度/℃ | 20 | 30 | 40 |
溶解度/g | 31.6 | 45.8 | 63.9 |
温度(℃) |
20 |
40 |
50 |
60 |
80 |
|
溶解度 (g/100g 水) |
NaCl |
36.0 |
36.6 |
37.0 |
37.3 |
38.4 |
NH4Cl |
37.2 |
45.8 |
50.4 |
55.2 |
65.6 |
|
KNO3 |
31.6 |
63.9 |
85.5 |
110 |
169 |
温度/℃ | 20 | 30 | 40 | 50 | |
溶解度/g | NaHCO3 | 10.0 | 11.0 | 13.0 | 14.0 |
NH4Cl | 35.0 | 39.0 | 43.0 | 48.0 |
试题篮