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S4 Chp. 12 反應質量

Authored by Lai CHEUNG

Chemistry

10th - 12th Grade

Used 8+ times

S4 Chp. 12 反應質量
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

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

Media Image

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

Media Image

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

Media Image

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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