
溶解度(初中三)

Quiz
•
Chemistry
•
9th Grade
•
Hard
Fong Tiew
Used 5+ times
FREE Resource
11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
20℃时,向10 g某物质的溶液中放入5 g该物质,充分溶解后过滤,得到12.6 g滤液,则原溶液一定是
饱和溶液
不饱和溶液
稀溶液
无法判断
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在30℃时,50 g水中最多溶解A物质5 g,在60℃时20 g水中最多能溶解B物质10 g,则
A的溶解度比B大
B的溶解度比A大
二者的溶解度相等
无法比较
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
下列有关溶液的说法,不正确的是
蔗糖溶液是均一的、稳定的混合物
硝酸钾在20℃时溶解度是31.6 g,则100 g硝酸钾溶液中含有硝酸钾31.6 g
在鱼池中设立水泵,把水喷向空中可以增加水中氧气的溶解量
冷却或蒸发溶剂都能使接近饱和的氯化钠溶液达到饱和
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
某温度时,将KCl的饱和溶液70 g,蒸干后得到20 g KCl固体,则该温度时KCl的溶解度为
8.0 g
28.6 g
40.0 g
71.4 g
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
某学生在实验室里分别进行如下实验,最终能得到硝酸钾的饱和溶液的是
从饱和硝酸钾溶液中取出30 mL
将20℃的KNO3的不饱和溶液的温度升高到60℃
将20℃的KNO3的饱和溶液的温度升高到60℃
将相同温度下等质量的KNO3的饱和溶液与不饱和溶液混合
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在20℃时,测得50g水中溶解18g氯化钠恰好形成饱和溶液,从实验中可知
氯化钠的溶解度为18g
氯化钠的溶解度为36g
20℃时氯化钠的溶解度为18g
20℃时氯化钠的溶解度为36g
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
某温度下,将5g氯化钠放入10g水中,得到13.6g氯化钠溶液,该溶液一定是
饱和溶液
不饱和溶液
稀溶液
无法判断
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