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1、单元即时练基础过关1.有关溶液的下列说法正确的是()A.溶液一定是无色的B.溶剂一定是水C.浓溶液一定是饱和溶液D.溶液一定是混合物解析：溶液是均一、稳定的混合物；溶液不一定是无色的；溶剂可以是水、酒精、汽油等多种物质；浓溶液不一定是饱和溶液，判断溶液是否饱和是在一定的条件下是否能继续溶解该物质。答案：D 2.(2010江苏徐州，12)2010年 2 月 5 日，徐州市普降大雪，为确保道路的畅通，有关部门向公路上的积雪撒盐以使冰雪很快融化。其原因是()A.盐水的凝固点较低B.盐水的沸点较高C.盐水的凝固点较高D.盐与雪发生反应答案：A 3.(2010甘肃嘉峪关，17)将 100 g KNO3的
2、不饱和溶液恒温蒸发水分，直至有晶体析出。在此变化过程中，溶液中溶质质量分数(a%)与蒸发时间(t)的变化关系可用下图表示的是()解析：随着水分的蒸发，KNO3的不饱和溶液的溶质质量分数越来越大。当达到饱和时就不再变化了。答案：D 4.下列物质放入水中，能形成溶液的是()A.石灰石B.汽油C.纯碱D.面粉答案：C 5.t 时，向一支盛有0.1 g 熟石灰的试管中加入10 mL 水，充分振荡后静置，试管底部仍有未溶解的白色固体。对于试管中的上层清液的叙述正确的是()A.溶液中溶质质量等于0.1 g B.溶液是 t 时的饱和溶液C.升高温度溶液变为不饱和溶液D.溶液中溶质的质量分数为 1%解析：氢氧
3、化钙是微溶物质，溶解度随温度的升高而降低，所以A、C、D 都错。答案：B 6.配制 10%的氯化钠溶液时，不会引起溶液中氯化钠的质量分数偏小的是()A.用量筒量取水时仰视读数B.配制溶液的烧杯用少量蒸馏水润洗C.氯化钠晶体不纯D.转移已配好的溶液时，有少量溶液溅出解析：仰视读数水的量取小了；用蒸馏水润洗等于稀释了溶液；氯化钠晶体不纯，食盐的量取少了。这些情况都会引起溶液中氯化钠的质量分数偏小。答案：D 7.(2010湖北黄冈，6)下列关于海水晒盐原理的分析，正确的是()A.利用阳光照射使海水升温得到食盐B.利用机械动力搅拌得到食盐C.利用阳光和风力将水分蒸发得到食盐D.利用海水在阳光下发生分解
4、反应制得食盐答案：C 8.把铁片分别放入下列物质的溶液中，过一段时间取出，溶液质量增加的是()A.Al2(SO4)3B.CuSO4C.H2SO4D.AgNO3 答案：C 9.(2010江苏苏州，12)已知 20 时硝酸钾的溶解度为31.6 g。在该温度下将 20 g 硝酸钾放入 50 g 水中，充分搅拌，则所得溶液中溶质的质量分数约为()A.24.0%B.28.6 C.31.6D.40.0解析：溶质质量分数等于溶质的质量除以溶液的质量。但题目中并没有直接告诉溶质和溶液的质量。分析知：将20 g 硝酸钾放入 50 g水中，充分搅拌，得到的是 20 硝酸钾的饱和溶液，又知20 硝酸钾的溶解度为31
5、.6 g，所以便可以用 20 硝酸钾的溶解度除以100 g与硝酸钾的溶解度之和。答案：B 10.某温度下有一杯饱和的硝酸钾溶液，欲使其溶质的质量分数发生改变，下列操作可行的是()A.加入一定质量的硝酸钾晶体B.加入少量饱和的硝酸钾溶液C.降低温度D.恒温蒸发溶剂解析：固体物质的溶解度只受温度影响，温度变化，固体物质的溶解度改变。答案：C 11.(2010 湖北荆州，12)已知某物质在 20 和 40 时的溶解度分别为10 g 和40 g。某温度下，将 5 g 该物质加到 20 g 水中，下列有关叙述正确的是()A.20 时所得溶液的质量为25 g B.40 时所得溶液为饱和溶液C.不管什么温度
6、下，所得溶液中溶质的质量分数均为20%D.该物质的溶解度随温度的升高而增大解析：固体物质的溶解度与温度有关，根据题意，该物质的溶解度随温度的升高而增大。物质溶于水时只有溶解在水中的部分才能算是溶质，未溶解的部分不是溶质。答案：D 12.下列有关溶液的认识中，错误的是()A.析出晶体后的溶液是该温度下的饱和溶液文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M1
7、0K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5
8、Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT
9、9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7
10、M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6
11、H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:
12、CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 H
13、K7M10K1I7V8 ZH6H5Q4J4L6B.在溶液里进行的化学反应，通常是比较快的C.同种溶质的饱和溶液，一定比它的不饱和溶液的浓度大D.食物里的营养成分经消化变成溶液，容易被人体吸收解析：温度是影响固体物质溶解度的主要因素，在同一温度下，同种溶质的饱和溶液，一定比它的不饱和溶液的浓度大。答案：C 13.160 g 质量分数为 50%的 NaNO3溶液与 100 g 质量分数为 50%的 NaNO3溶液混合后溶液的质量分数是()A.28%B.25%C.27.5%D.50%答案：D 14.(2010广西柳州，14)20 时，将 25 g 氯化钠和 25 g 硝酸钾分别放入 100 g水中，
14、充分搅拌后得到两种物质的溶液。根据下图判断下列有关叙述正确的是()A.所得溶液在 20 时都是饱和溶液B.两种物质在 20 时溶解度相同C.降温到 10 时，氯化钠溶液中有晶体析出D.升温到 30 时，两种溶液溶质质量分数不变解析：由图示可知升温到30 时，两种溶液中溶质和溶剂的质量都没有发生改变，所以，两种溶液的溶质质量分数不变。答案：D 15.下列生活中的现象，与物质溶解性无关的是()A.揭开啤酒瓶盖，有大量气泡溢出B.盛石灰水的瓶口有一层白膜C.烧开水时，沸腾前有大量气泡D.咸菜长期放置在空气中，表面有一层“白霜”解析：盛石灰水的瓶口有一层白膜是生成了新物质碳酸钙，与物质溶解性无关。答案
15、：B 能力提升16.下图所示的变化中，属于化学变化的是()文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1
16、I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J
17、4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6
18、X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10
19、K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q
20、4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9
21、P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6解析：A、B、C 都属于混合物的分离。答案：D 17.甲醇的化学式为 CH4O，某甲醇溶液中甲醇所含氢原子数与水所含的氢原子数相等，则该溶液中溶质的质量分数是()A.64%B.50%C.47.1%D.无法判
22、断解析：分子或原子个数要换算成质量，必须通过相对分子质量或相对原子质量。答案：C 18.某温度时，将烧杯中的x g KNO3饱和溶液恒温下蒸发部分溶剂，然后再将烧杯中的物质逐渐升温(假设升温时溶剂没有损失)，能够正确表示此过程中KNO3溶液溶质的质量分数(w)与时间(t)关系的示意图是()解析：饱和溶液恒温下蒸发部分溶剂，仍为该温度下的饱和溶液，溶质的质量分数不变。升温可溶解更多的溶质，溶质的质量分数增大。答案：A 19.(2010 重庆).除去 KCl 固体中混有的少量泥沙，所进行的实验操作次序为：_、_、_，每步操作都要用到的玻璃仪器是_。答案：溶解过滤蒸发结晶玻璃棒创新应用20.溶解度曲
23、线为我们定量描述物质的溶解性强弱提供了便利。请你根据下图的溶解度曲线完成下列问题：文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F
24、3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I
25、7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4
26、L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X
27、7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K
28、1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4
29、J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6(1)20 时，甲物质的溶解度 _(填“大于”“等于”或“小于”)乙物质的溶解度。(2)_ 时，两种物质的溶解度相等。(3)60 时，将80 g 甲物质放入100 g 水中，所得溶液
30、的溶质质量分数为_。答案：(1)小于(2)40(3)37.5%21.某同学在实验室发现一瓶标签残缺(如图 1 所示)的溶液。为了测定此溶液的溶质质量分数，他取出 25 g 该溶液，向其中逐滴加入溶质质量分数为10%的 NaOH溶液。反应过程中生成沉淀的质量与所用NaOH 溶液质量的关系如图2 所示。请计算此溶液的溶质质量分数。图 1 图 2 解析：由题目图示可知 40 g 10%的氢氧化钠溶液恰好与25 g 该溶液完全反应。解：设参加反应的MgSO4的质量为 x，2NaOH+MgSO4=Na2SO4+Mg(OH)280 120 40 g10%=4 gx 解得：x=6 g 此溶液的溶质质量分数：
31、6 g/25 g100%=24%。答案：24%22.炎热的夏天你想喝自制的汽水吗?小雨同学为你提供了“七喜”汽水成分表(见下图)。(1)根据“七喜”汽水的成分表，分析自制汽水所需的原料是：白砂糖、果汁、食用香料、_和_。(2)打开汽水瓶盖，有大量气体逸出。请你对该气体的成分进行探究，完成下表：猜想与假设验证方法及操作观察到的现象结论(用化学方程式表示)解析：汽水的成分可由图示直接得出。根据CO2的性质去设计，实验探究、方法、现象、结论要写完整。答案：(1)柠檬酸小苏打(或碳酸氢钠)(2)猜想与假设验证方法及操观察到的现象结论(用化学方程式表示)文档编码:CT9P6X7F3N3 HK7M10K1
32、I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J
33、4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6
34、X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10
35、K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q
36、4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9
37、P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M
38、10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6作该 气 体 可 能 是二氧化碳把 汽 水 产 生 的气 体 通 入 澄 清石灰水中澄 清 石 灰 水 变浑浊Ca(OH)2+CO2=CaCO3+H2O 23.在某一恒定温度，W g 氯化钠溶液蒸发掉 10 g 水或加入 3.6 g氯化钠均可使之成为饱和溶液，求该温度时氯化钠的溶解度。解析：假想可以将该溶液分成如
39、图示的两部分，一部分是10 g 水，另一部分是恰为饱和溶液(W g10 g)。可见加入 3.6 g氯化钠恰好和 10 g 水形成该温度下的饱和溶液，则S=(3.6 g/10 g)100 g=36 g 答案：36 g 24.在硫酸与硫酸铜的混合溶液200 g中，滴入 40的氢氧化钠溶液100 g，恰好完全反应。记录反应过程，得到的沉淀与所加的氢氧化钠溶液的质量关系如图所示。问：(1)与硫酸铜反应的氢氧化钠溶液的质量为_g。(2)将容器中的溶液在t 时恒温蒸发 27 克水后，恰好达到饱和，计算t 时饱和溶液的溶质质量分数为多少。解析：由图示可知与硫酸铜反应的氢氧化钠溶液的质量为50 g。反应后最终
40、得到的溶液是硫酸钠的水溶液。生成硫酸钠的质量可根据氢氧化钠的质量算出。溶液的质量不包括沉淀的质量。答案：(1)50(2)氢氧化钠与硫酸和硫酸铜生成的硫酸钠的质量为71 g，饱和溶液的质量为：200+100-生成的氢氧化铜沉淀-27 g 水，氢氧化铜的质量为：50 g氢氧化钠溶液与硫酸铜反应生成的24.5 g，饱和溶液的溶质质量分数为71 g/(200 g+100 g-24.5 g-27 g)100=28.6。文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7
41、F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1
42、I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J
43、4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6
44、X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10
45、K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q
46、4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9
47、P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M
48、10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H
49、5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:C
50、T9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK7M10K1I7V8 ZH6H5Q4J4L6文档编码:CT9P6X7F3N3 HK