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溶液與濃度

Authored by 許榮成 許榮成

Chemistry

10th Grade

Used 6+ times

溶液與濃度
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8 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

溶液屬於下列何種物質?

化合物

勻相混合物

非勻相混合物

元素

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一個不屬於溶液?

青銅(鋅錫合金)

雙氧水(37%H2O2)

食鹽水

純硫酸

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

膠體溶液與真溶液是利用哪一種特性區分的?

溶質粒徑大小

溶液是否有顏色

溶液是否呈現膠水狀

溶液是否能導電

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

有關廷德爾效應的敘述何者正確?

分散質粒子反射光線產生

會看到整杯溶液

都有發光的現象

僅有膠體溶液

會有這種特性

Media Image

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下面哪一個儀器不是配置溶液必須的?

Media Image
Media Image
Media Image
Media Image

6.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

下面常用的濃度單位的配對何者正確?(多選)

酒精濃度75%:

體積莫耳濃度

濃硫酸濃度18M:

體積莫耳濃度

LD50(毒物半致死量)

3750ppm:

百萬分點濃度

雙氧水(37%H2O2):

重量百分濃度

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

取用Ca(OH)20.5mol,將其配成250mL的溶液,請問該溶液的氫氧根離子濃度為若干M?

Hint:Ca(OH)2為強電解質

4M

2M

1M

0.5M

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