Mole Concept
The density of a gas at STP is 1.25 g L⁻¹. Its molar mass is approximately:
Select the correct option:
Solution
28.0 g mol⁻¹
- Ideal Gas Volume at STP: 1 mol occupies 22.4 L.
- Relate Density and Volume:
- Mass of 1 mol(M)=Density×Volume
- M=1.25 g/L×22.4 L/mol=28.0 g/mol.
- Result: The molar mass is 28.0 g/mol (like N2 or CO).
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About This Question
- Subject
- chemistry
- Chapter
- some basic concepts in chemistry
- Topic
- mole concept
- Difficulty
- Medium
- Year
- 2025
This medium difficulty chemistry question is from the chapter some basic concepts in chemistry, covering the topic of mole concept. It appeared in the 2025 exam. Practice this and similar questions to strengthen your understanding of some basic concepts in chemistry concepts.
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