试题与答案

(4分)甲、乙、丙三种固体物质的溶解度曲线如图所示,请回答: (1)t1℃时,

题型:问答题

题目:

(4分)甲、乙、丙三种固体物质的溶解度曲线如图所示,请回答:

(1)t1℃时,甲物质的溶解度       (填“大于”、“小于”或“等于”)乙物质的溶解度。 

(2)t1℃时,100g水中最多能溶解丙物质      g。

(3)t2℃时,把等质量的甲、乙两物质的饱和溶液降温到t1℃,析出晶体较多的是      

(4)t2℃时,向盛有100g水的烧杯中加入60g甲物质,充分溶解后,所得溶液溶质的质量分数是        (计算结果精确到0.1%)。 

答案:

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