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?

莫耳濃度-1

Quiz
•
Chemistry
•
8th Grade
•
Hard
Carrie Kan
FREE Resource
35 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
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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