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MHT CET 202622 AprilMorning Shift
Exam
MHT CET
Year
2026
Date
22 April
Shift
Morning Shift
Subject
Chemistry
Chapter
Solutions

MHT CET 2026 · 22 April · Morning Shift · Chemistry · Solutions

What is the molality of an aqueous solution containing 6 % glucose...

What is the molality of an aqueous solution containing 6 % glucose by mass ? ( Molar mass of glucose = 180 g/mol )

Options

  1. A0.150.15 m
  2. B0.250.25 m
  3. C0.350.35 m
  4. D0.450.45 m

Correct answer

C. 0.350.35 m

Step-by-step solution

Let the mass of the solution be 100100 g.

Mass of glucose (solute) = 66 g

Mass of water (solvent) = 100−6=94100 - 6 = 94 g = 0.0940.094 kg

Molar mass of glucose = 180180 g/mol

Moles of glucose = 6180=130\dfrac{6}{180} = \dfrac{1}{30} mol

Molality (mm) = Moles of soluteMass of solvent in kg\dfrac{\text{Moles of solute}}{\text{Mass of solvent in kg}}

m=1/300.094=12.82≈0.35m = \dfrac{1/30}{0.094} = \dfrac{1}{2.82} \approx 0.35 m

Answer: 0.350.35 m
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