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What is the difference between molality and molarity?

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प्रश्न

What is the difference between molality and molarity?

Differentiate between molarity and molality.

अंतर स्पष्ट करें
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उत्तर

Sr. No. Molarity Molality
1. Molarity is the concentration of a material determined as the number of moles of solute dissolved in one litre of solution. Molality is the concentration calculated as the number of moles of solute found in one kilogram of solvent.
2. Molarity is denoted by the symbol M. Molality is denoted by the symbol m.
3. The molarity formula is moles per litre. The molality formula is moles per kilogram.
4. Molarity is impacted by temperature changes. Molality is not affected by temperature changes.
5. Changes in pressure affect molarity. Pressure changes do not affect molality.
6. Molarity can lead to an imprecise and inaccurate concentration. Molality can lead to an accurate and precise concentration measurement.
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अध्याय 1: Some Basic Concepts of Chemistry - Multiple Choice Questions (Type - I) [पृष्ठ ५]

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