Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
MHT CET202411 May 2024Evening ShiftChemistrySolutionsActual

The solution containing 18 ~g dm ⁻³ glucose (molar mass 180) in water and another containing 6 ~g dm ⁻³ of solute A in water boils at same temperature. What is molar mass of A ?

Options

  1. A54 ~g ~mol ⁻¹
  2. B90 ~g ~mol ⁻¹
  3. C120 ~g ~mol ⁻¹
  4. D60 ~g ~mol ⁻¹

Correct answer

D. 60 ~g ~mol ⁻¹

Step-by-step solution

As boiling points of both the solutions are same, they must have same molality. aligned & m _ glucose = m _ A & ~W _ glucose M _ glucose W _ solvent = W _ A M _ A W _ solvent & 18 180 W _ water = 6 M _ A W _ water aligned Considering weight of water is same in both solutions, M_A=60 ~g ~mol ⁻¹

Practice Solutions on Quantrex Academy →

More from Solutions

Identify the law which is stated as "For any solutions, the partial vapour pressure of each volatile component in the solution is directly proportional to its mole fraction". 2026The system that forms maximum boiling azeotrope is: 2026When 1 mole of benzene is mixed with 1 mole of toluene, the vapours will contain 2026A 5% solution (by mass) of cane sugar in water has a freezing point of 271 K. The freezing point of a 5% solution (by mass) of glucose in water is: [freezing point of pure water: 2 20260.02M solution of sucrose is isotonic with 0.008M solution of sodium sulphate. What is the percentage dissociation of the electrolyte? 2026What is the percentage dissociation of 0.8ml of Acetic acid (density is 1.04g/ml) which is dissolved in 1.2L of water if the observed Depression in freezing point is 0.0228 K? ( K_ 2026Identify the correct statement 2026An aqueous solution of an unknown solute "X" is prepared by adding 4.0g of it into 2.0moles of water. What is the mass percent of "X" in the aqueous solution? 2026 Full Solutions list All MHT CET PYQs