0.580 g的烴含有0.480 g的碳和0.100 g的氫。在常温常壓下,24.0 cm³的這氣態烴的質量是0.0870 g。這烴的分子式是甚麼?
(相對原子質量:H = 1.0、C = 12.0;在常温常壓下氣體的摩爾體積 = 24 dm³ mol⁻¹)
10分鐘小測:第38章 常温常壓(r.t.p.)下氣體的摩爾體積
Quiz
•
Chemistry
•
9th - 12th Grade
•
Hard
Chemistry Aristo
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
0.580 g的烴含有0.480 g的碳和0.100 g的氫。在常温常壓下,24.0 cm³的這氣態烴的質量是0.0870 g。這烴的分子式是甚麼?
(相對原子質量:H = 1.0、C = 12.0;在常温常壓下氣體的摩爾體積 = 24 dm³ mol⁻¹)
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
考慮從氮和氫生成氨的反應:
N₂(g) + 3H₂(g) → 2NH₃(g)
NH₃(g)的生成速率(在常温常壓下量度)是0.300 mol min⁻¹。在相同條件下,H₂(g)的消耗速率是多少?
(在常温常壓下氣體的摩爾體積 = 24 dm³ mol⁻¹)
A. 3.6 dm³ min⁻¹
B. 4.8 dm³ min⁻¹
C. 10.8 dm³ min⁻¹
D. 21.6 dm³ min⁻¹
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
8.0 g的氧含有多少分子?
(相對原子質量:O = 16.0;亞佛加德羅常數 = 6.02 × 10²³ mol⁻¹)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
要把1.0 dm³的丁烷完全燃燒,所需氧的體積(在常温常壓下量度)是多少?
2C₄H₁₀(g) + 13O₂(g) → 8CO₂(g) + 10H₂O(l)
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪氣體的體積最大(在常温常壓下量度)?
(相對原子質量:H = 1.0、C = 12.0、N = 14.0、Cl = 35.5;在常温常壓下氣體的摩爾體積 = 24 dm³ mol⁻¹)
D. 0.35 g的氯
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
把0.30 mol的鋅加進750 cm³的1.0 M氫氯酸。在常温常壓下,所生成氫的體積是多少?
Zn(s) + 2HCl(aq) → ZnCl₂(aq) + H₂(g)
(在常温常壓下氣體的摩爾體積 = 24 dm³ mol⁻¹)
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
指示:回答第7至9題時,要參照實驗。
在一實驗中,把100 cm³的氫和25 cm³的氧混合,並以電熱器點燃,如圖中所示。已知這反應在150°C發生,反應終止時氣體的體積是多少?
(假設所有氣體的體積都是在相同的温度和壓強下量度。)
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