溶解度随堂小测

Quiz
•
Chemistry
•
9th Grade
•
Hard

Zhao Dan
Used 9+ times
FREE Resource
6 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
1.20℃时,NaCl的溶解度为36g。对这句话理解错误的是( )
A.20℃时,100g水中最多能溶解NaCl为36g
B.20℃时,100gNaCl饱和溶液中含NaCl36g
C.20℃时,NaCl饱和溶液中水与NaCl的质量比为100:36
D.20℃时,将36gNaCl溶解于100g水中,所得溶液为该温度下NaCl的饱和溶液
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
2.25 ℃时向CaCl2饱和溶液中加入一定量的水后,下列有关该溶液的叙述正确的是( )
A.溶质的溶解度不变
B.溶剂的质量不变
C.仍为饱和溶液
D.溶液的质量不变
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
3.20℃时,10g水中最多可溶解3.64g硫酸铝[Al2(SO4)3],则Al2(SO4)3属于( )
A.易溶物质
B.可溶物质
C.微溶物质
D.难溶物质
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
4.可口可乐中溶有一定量的CO2气体。打开瓶塞,可乐会自动喷出。喝了可乐后常会打嗝。以下关于气体溶解度的说法正确的是( )
A.压强增大,气体溶解度增大
B.压强减小,气体溶解度增大
C.温度升高,气体溶解度增大
D.温度降低,气体溶解度减小
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
5.右图表示的是甲、乙两种固体物质的溶解度曲线,下列叙述正确的是( )
A.甲的溶解度大于乙的溶解度
B.35℃时,甲的饱和溶液中所含甲的质量大于乙的饱和溶液中所含乙的质量
C.降低温度可使接近饱和的甲溶液变成饱和溶液
D.乙溶液中混有少量的甲物质,可以用降温结晶的方法提纯乙物质
6.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
A、B、C三种固体物质的溶解度曲线如右图所示。回答下列问题:
(1)t3℃时,三种物质的溶解度由大到小的顺序是_____________;
(2)t2℃时,_____和_____的溶解度大小相等;
(3)三种物质中,_____的溶解度受温度影响最大,_____的溶解度随温度升高而减小。
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