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【简答题】
t1 °C时,只各100 g水的烧杯中分别加入a g硝酸钾和ag氯化钾,充分搅拌后,现象如图1所示。 图 2 是硝酸钾和氯化钾的溶解 度曲线图。 (1) 烧杯2中所得溶液的质量为 __________ 。 (2) 烧杯1中加入的固体溶质是 _________ 。 (3) 图 1 中所得溶液不能确定是饱和溶液的是烧杯 _______ ( 填“1 " 或“2” ) 中的溶液。 (4) 关于图 1 中烧杯内的物质,下列说法正确的是 ________ ( 填序号 ) 。 A. 加入的硝酸钾的质量大于 25 g B. 蒸发一定量的水,两烧杯中都一定有固体析出 C. 将烧杯1内溶液倒人烧杯2中 , 充分搅拌后 , 烧杯中一定还有剩余固体
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