Automative antifreeze is a 60% weight/weight aqueous solution of ethylene glycol (C2H6O2) then its molality is?

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Automative antifreeze is a 60% weight/weight aqueous solution of ethylene glycol (C2H6O2) then its molality is? Answer: 24.2 moles/kg

Molality is based on kg of solvent, not solution. A 60% w/w solution of ethylene glycol contains more solute than solvent, leading to a high molality (~24.2 m).

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