
S4 Chp. 12 反應質量
Authored by Lai CHEUNG
Chemistry
10th - 12th Grade
Used 8+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一摩爾水代表這裡含有多少個水分子?
18x1023
3x1023
6.02x1023
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知燒杯中有71.0 g的氯分子。那麼燒杯含有多少摩爾的氯分子呢?
0.5
1
2.5
4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2摩爾鈉原子的質量是多少?
(相對原子質量: Na = 23.0)
34.5
11.5
46.0
23.0
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
四氯甲烷 CCl4的摩爾質量是多少?
(相對原子質量: C = 12.0, Cl = 35.5)
190 g mol-1
83.5 g mol-1
118.5 g mol-1
154 g mol-1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
現有一化合物X,質量為23.0 g。分子或式單位數目為3.01x1023。
問化合物X的摩爾數為多少?
0.5 mol
1 mol
11.5 mol
23.0 mol
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
現有一化合物X,質量為23.0 g。分子或式單位數目為3.01x1023。
問化合物X的摩爾質量為多少?
11.5 g mol-1
23.0 g mol-1
46.0 g mol-1
3.01 g mol-1
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某硝酸鈉(NaNO3)樣本中含有100g 的鈉,計算樣本中氮的質量。
(相對原子質量: Na = 23.0、O = 16.0、N = 14.0)
182.6 g
208.7 g
60.9 g
269.6 g
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