Mole Concept
Which statement correctly defines molality?
Select the correct option:
Solution
Moles solute per kg solvent
- Definition: Molality (m) is defined as the number of moles of solute dissolved per kilogram (kg) of the solvent.
- Equation: m=mass of solvent in kgmoles of solute.
- Property: Unlike Molarity (which is moles per litre solution), Molality is independent of temperature because it is based on masses, not volumes.
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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:
Moles solute per kg solvent
- Definition: Molality (m) is defined as the number of moles of solute dissolved per kilogram (kg) of the solvent.
- Equation: m=mass of solvent in kgmoles of solute.
- Property: Unlike Molarity (which is moles per litre solution), Molality is independent of temperature because it is based on masses, not volumes.
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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