alleryMolality m is defined as:
AMass of solute per total mass
BMole fraction
CMoles solute per litre of solution
DMoles solute per kilogram of SOLVENT
Answer & Solution
Correct answer: D. Moles solute per kilogram of SOLVENT
Molality (m) = moles of solute / kg of solvent.
Used for colligative property calculations because, unlike molarity, it does not depend on temperature.
Keep practising Unit 3B1: Solutions and Concentrations
Browse all Unit 3B1: Solutions and Concentrations questions for JEE Advanced, or explore more Chemistry topics.
Related questions
Hydrogenation of vegetable oils to make margarine uses catalyst:Adsorption isotherm:Freezing-point depression and elevation are colligative properties: depend on:For a 1 m glucose aqueous solution (i = 1), boiling point:For salt CaCl₂ (assume full dissociation), i =For 0.1 M acetic acid (Ka = 1.8 × 10⁻⁵), van't Hoff factor i is:For solution of urea (M_w = 60 g/mol) with 6 g in 100 g water, molality:Osmotic pressure of 0.01 M sucrose solution at 27°C (R = 0.0821 L atm/mol K):