MHT CET 2023 9th May Morning Shift | Liquid Solution Question 80 | Chemistry

A solution of nonvolatile solute is obtained by dissolving $$3.5 \mathrm{~g}$$ in $$100 \mathrm{~g}$$ solvent has boiling point elevation $$0.35 \mathrm{~K}$$. Calculate the molar mass of solute.

(Molal elevation constant $$=2.5 \mathrm{~K} \mathrm{~kg} \mathrm{~mol}^{-1}$$ )

$$270 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$260 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$250 \mathrm{~g} \mathrm{~mol}^{-1}$$

$$240 \mathrm{~g} \mathrm{~mol}^{-1}$$

MHT CET 2022 11th August Evening Shift

MCQ (Single Correct Answer)

-0

Calculate the solubility of a gas in water at $$0.8 \mathrm{~atm}$$ and $$25^{\circ} \mathrm{C}$$.

[Henry's law constant is $$6.85 \times 10^{-4} \mathrm{~mol} \mathrm{~dm}^{-3} \mathrm{~atm}^{-1}$$ ]

$$2.74 \times 10^{-4} \mathrm{~mol} \mathrm{~dm}^{-3}$$

$$3.94 \times 10^{-4} \mathrm{~mol} \mathrm{~dm}^{-3}$$

$$6.85 \times 10^{-4} \mathrm{~mol} \mathrm{~dm}^{-3}$$

$$5.48 \times 10^{-4} \mathrm{~mol} \mathrm{~dm}^{-3}$$

MHT CET 2022 11th August Evening Shift

MCQ (Single Correct Answer)

-0

Identify the concentration of the solution from following so that values of ,$$\Delta \mathrm{T}_{\mathrm{f}}$$ and $$\mathrm{K}_{\mathrm{f}}$$ are same.

$$1 \mathrm{~m}$$

$$1 \mathrm{~M}$$

$$1 \mathrm{~N}$$

$$\frac{\mathrm{N}}{10}$$

MHT CET 2022 11th August Evening Shift

MCQ (Single Correct Answer)

-0

Calculate the amount of solute dissolved in 160 gram solvent that boils at $$85^{\circ} \mathrm{C}$$, the molar mass of solute is $$120 \mathrm{~g} \mathrm{~mol}^{-1}$$. $$\left(\mathrm{K}_{\mathrm{b}}\right.$$ for solvent $$=2.7^{\circ} \mathrm{C} \mathrm{~kg} \mathrm{~mol}^{-1}$$ and boiling point of solvent $$=76^{\circ} \mathrm{C}$$)

42 gram

60 gram

64 gram

50 gram

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