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09-09-2019
Chemistry

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What is the molality of 10 kilograms of water containing 5.0 moles of sodium chloride?

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10-09-2019

Answer:

molality ( m ) = 0.5 mol/Kg

Explanation:

molality ( m ) = mol solute / Kg solvent

∴ solute: NaCl

∴ solvent: H2O

⇒ m = 5.0 mol / 10 Kg

⇒ m = 0.5 mol NaCl / Kg H2O

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