溶液及其性质
Quiz
•
Chemistry
•
11th Grade
•
Hard
wan hawl
Used 26+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列事实不能用“相似相溶原理”解释的是_______。
大理石难溶于水
酒精与水可以任意比例互溶
氯气易溶于有机溶剂四氯化碳
极性分子氯化氢极易溶于水
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
在20 oC时,向一定量的某物质的不饱和溶液中加入5 g该物质,或蒸发32.3 g水,都可以将溶液变为饱和溶液。该物质在20 oC时的溶解度为________。
13.4 g
14.3 g
15.5 g
16.7 g
3.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在20 oC时,甲、乙两倍硝酸铵饱和溶液的质量分别为200 g和300 g。在下列条件下,析出晶体质量相同的是_________。
甲、乙两倍都蒸发掉20 g水
甲杯的温度降至10 oC,乙杯的温度降至9 oC
甲、乙两杯的温度都降低10 oC
甲杯蒸发掉30 g水,乙杯蒸发掉20 g水
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列关于萃取的说法,错误的是____________。
究竟可以萃取溴水中的绣
根据分配定律,等量的萃取剂,多次萃取比一次萃取分离效果好
萃取是一种分离物资的实验方法
萃取和分液操作可以在分液漏斗中进行
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
下列关于0.1 mol L-1 硝酸钾溶液的叙述,正确的是____。
在1L该溶液中含有101g 硝酸钾
在100 mL该溶液中含有0.01 mol 硝酸钾
从1 L该溶液中取出500 mL后,剩余溶液的浓度为0.05 mol L-1
在1L水中溶解0.1 g硝酸钾即可配成0.1 molL-1的硝酸钾溶液
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
使1 mol Al完全反应,需要1 mol L-1的硫酸的体积为________。
1 L
1.5 L
2 L
2.5 L
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在下列溶液的性质中,不属于溶液的依数性是_____。
凝固点
沸点
渗透压
颜色
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