Mole Concept
Which pair of solutions contains the same number of moles of solute?
Select the correct option:
Solution
100 mL of 0.2 M KCl and 200 mL of 0.1 M KCl
- Formula: Moles=Molarity×Volume (L).
- Analyze each pair:
- Option 3: 100 mL (0.1 L)×0.2 M=0.02 mol. 200 mL (0.2 L)×0.1 M=0.02 mol. Matches.
- Option 1: 0.5×1=0.5 vs 0.25×1=0.25. (No)
- Option 2: 0.05×1=0.05 vs 0.025×1=0.025. (No)
- Option 4: 0.4×0.5=0.2 vs 0.2×0.8=0.16. (No)
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About This Question
- Subject
- chemistry
- Chapter
- some basic concepts in chemistry
- Topic
- mole concept
- Difficulty
- Hard
- Year
- 2025
This hard 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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