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| 温度(℃) | 0 | 20 | 40 | 60 | 80 | 100 | |
| 溶解度(g/100g水) | 氯化钠 | 35.7 | 36.0 | 36.6 | 37.3 | 38.4 | 39.8 |
| 氯化钾 | 27.6 | 34.0 | 40.0 | 45.5 | 51.1 | 56.7 | |

将30g固体物质X(不含结晶水)投入盛有20g水的烧杯中,搅拌,测得溶液的质量分别如图中A、B、C、D点所示。回答下列问题:(1)0℃时,物质X的溶解度是 。| 温度/℃ | 10 | 20 | 30 | 40 | 50 | 60 | |
| 溶解度/g | NaCl | 35.8 | 36.0 | 36.3 | 36.6 | 37.0 | 37.3 |
| KNO3 | 20.9 | 31.6 | 45.8 | 63.9 | 85.5 | 110.0 | |

| 温度/℃ | 0 | 20 | 40 | 60 | |
| 溶解度/g | KNO3 | 13.3 | 31.6 | 63.9 | 110 |
| Ca(OH)2 | 0.19 | 0.17 | 0.14 | 0.12 | |


| 温度/℃ | 0 | 10 | 20 | 30 | 40 | 50 | 60 | |
| 溶解度/g | KNO3 | 13.3 | 20.9 | 31.6 | 45.8 | 63.9 | 85.5 | 110 |
| NaCl | 35.7 | 35.8 | 36 | 36.3 | 36.6 | 37.0 | 37.3 | |



| 温度/℃ | 20 | 30 | 40 | 50 | |
| 溶解度/g | 氯化钾 | 34.0 | 37.0 | 40.0 | 42.6 |
| 硝酸钾 | 31.6 | 45.8 | 63.9 | 85.5 |

| 温度/℃ | 0 | 10 | 20 | 30 | 40 | 50 |
| NH4Cl溶解度 | 29.4 | 33.3 | 37.2 | 41.4 | 45.8 | 50.4 |
| NaCl溶解度 | 35.7 | 35.8 | 36.0 | 36.3 | 36.6 | 37.0 |

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2025-04-14
初中化学 | | 填空题