MHT CET 2022 11th August Evening Shift | Liquid Solution Question 39 | Chemistry

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

MHT CET 2021 22th September Evening Shift

MCQ (Single Correct Answer)

-0

5 g sucrose (molar mass = 342) is dissolved in 100 g of solvent, decreases the freezing point by 2.15 K. What is cryoscopic constant of solvent?

14.7 K kg mol$$^{-1}$$

2.15 K kg mol$$^{-1}$$

4.30 K kg mol$$^{-1}$$

7.35 K kg mol$$^{-1}$$

MHT CET 2021 22th September Evening Shift

MCQ (Single Correct Answer)

-0

What is Henry's law constant if solubility of a gas in water at $$298 \mathrm{~K}$$ and 1 bar pressure is $$7\times10^{-4} \mathrm{~mol} \mathrm{~L}^{-1}$$ ?

$$2.0 \times 10^{-5} \mathrm{~mol} \mathrm{~L}^{-1}$$ bar$$^{-1}$$

$$7.0 \times 10^{-4} \mathrm{~mol} \mathrm{~L}^{-1} \mathrm{bar}^{-1}$$

$$3.5 \times 10^{-3} \mathrm{~mol} \mathrm{~L}^{-1}$$ bar$$^{-1}$$

$$3.1 \times 10^{-5} \mathrm{~mol} \mathrm{~L}^{-1}$$ bar$$^{-1}$$

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