MHT CET 2023 Chemistry question
A solution of nonvolatile solute is obtained by dissolving 1.5g in 30g solvent has boiling point elevation 0.65 K. Calculate the molal elevation constant if molar mass of solute is 150g
Answer: (A)
Solution
Elevation of boiling point is , where molality . Moles of solute mol; mass of solvent kg, so . Therefore $ = =
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