将60.0g CO(NH2)2 (尿素)溶于500g水中,此溶液的凝固点是( )℃。 (水的 Kfp=1.86K·kg/mol)A. -0.26 B. ...

作者: tihaiku 人气: - 评论: 0
问题 将60.0g CO(NH2)2 (尿素)溶于500g水中,此溶液的凝固点是( )℃。 (水的 Kfp=1.86K·kg/mol)
选项 A. -0.26 B. -0.97 C. -1.04 D. -3.72
答案 D
解析 此尿素溶液凝固点比水(0℃)降低3.72℃,即-3.72℃。

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