Mole Concept
At STP, the volume occupied by 2.00 g of H2 gas (M=2) is approximately:
Select the correct option:
Solution
22.4 L
- Calculate Moles of H2:
- n=Molar massmass=2 g/mol2.00 g=1.00 mol.
- Apply Ideal Gas Molar Volume:
- At STP (Standard Temperature and Pressure), 1 mol of any ideal gas occupies 22.4 L.
- Conclusion: Since we have exactly 1.00 mol, the volume is 22.4 L.
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About This Question
- Subject
- chemistry
- Chapter
- some basic concepts in chemistry
- Topic
- mole concept
- Difficulty
- Easy
- Year
- 2025
Solution
Correct Answer:
22.4 L
- Calculate Moles of H2:
- n=Molar massmass=2 g/mol2.00 g=1.00 mol.
- Apply Ideal Gas Molar Volume:
- At STP (Standard Temperature and Pressure), 1 mol of any ideal gas occupies 22.4 L.
- Conclusion: Since we have exactly 1.00 mol, the volume is 22.4 L.
This easy difficulty chemistry question is from the chapter some basic concepts in chemistry, covering the topic of mole concept. It appeared in the 2025 exam.
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