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莫耳濃度-1

Authored by Carrie Kan

Chemistry

8th Grade

莫耳濃度-1
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35 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

4 M的鹽酸2公升,倒掉0.5公升之後,試問鹽酸的濃度將變為多少M?

4

3

2

1

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

氫氧化鈉溶液加水稀釋的過程中,下列何者不會改變?

溶劑的質量

溶質的質量

溶液的體積

溶液的濃度

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

小杰以廣用試紙測試四種溶液的酸鹼度,則下列四種溶液中,何者可以使廣用試紙呈現黃色?

石灰水

氨水

氫氧化鈉水溶液

稀鹽酸

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

甲溶液:pH=4;乙溶液:pH=6,則哪一溶液的[H]較大?

甲較大

乙較大

兩者相等

條件不足,無法比較

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

已知HCl的分子量為36.5,試問一瓶一公升、濃度為2 M的鹽酸水溶液中,含有多少公克的HCl?

3.65

7.3

36.5

73

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

2 M的氫氧化鈉溶液50毫升,今加入蒸餾水稀釋至500毫升,則稀釋後的溶液濃度為何?

2M

1M

0.5M

0.2M

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

以廣用試紙測試不同水溶液的pH值,會呈現不同顏色,當溶液pH值從1漸漸增加到14時,其顏色的變化為何?

紅→橙→黃→綠→藍→紫

紫→藍→綠→黃→橙→紅 

紅→紫→綠→黃→無

無→黃→綠→紫→紅

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