把數滴酚酞加進稀硝酸中,溶液會呈甚麼顏色?

21-22chem14-18

Quiz
•
Chemistry
•
11th Grade
•
Hard
Hang Ip
Used 6+ times
FREE Resource
23 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
紅色
黃色
無色
粉紅色
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把數滴甲基橙加進氫氧化鈉中,溶液會呈甚麼顏色?
紅色
黃色
無色
橙色
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
鋅與稀硫酸反應時,會生成下列哪些物質?
硫酸鋅、二氧化硫和水
硫化鋅和氫
硫酸鋅和氫
氧化鋅和二氧化硫
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列哪些物質可與稀硫酸起反應?(可多選)
銅
氫氧化鐵(II)
碳酸鎂
鋅
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
500.0 cm3的硝酸鈣溶液含11.5 g的硝酸鈣。這溶液的摩爾濃度是多少?
(相對原子質量:N = 14.0,O = 16.0,Ca = 40.1)
0.0350 mol dm–3
0.070 mol dm–3
0.140 mol dm–3
0.280 mol dm–3
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
利用102 g的硝酸鉛(II)製備0.616 mol dm–3的溶液,所得溶液的體積是多少?
(相對原子質量:N = 14.0,O = 16.0,Pb = 207.2)
50.0 cm3
100.0 cm3
250.0 cm3
500.0 cm3
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
某溶液的pH值是4.68,其中氫離子的濃度是多少?
2.09 x 10–5 mol dm–3
2.14 x 10–5 mol dm–3
0.468 mol dm–3
0.670 mol dm–3
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