All In One ISC Chemistry Class 12>Chapter 2 - Solutions>Chapter Practice>Q 20

EASY

12th ICSE

IMPORTANT

Earn 100

What possible value of Van't Hoff factor for a dilute solution of ${Na}_{2} {SO}_{4}$ in water?

Important Questions on Solutions

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 2 - Solutions>Chapter Practice>Q 21

Between

2 M

glucose solution and

1 M

glucose solution, which one has a lower freezing point?

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 2 - Solutions>Chapter Practice>Q 22

Are equimolar solutions of sodium chloride and urea isotonic? Give reason.

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 2 - Solutions>Chapter Practice>Q 23

Which out of molality, molarity and mole fraction of a solution will remain unchanged and why?

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 2 - Solutions>Chapter Practice>Q 24

A solution is obtained by mixing

300 g

of

25 %

and

400 g

of

40 %

solution by mass. Calculate the mass percent of the resulting solution.

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 2 - Solutions>Chapter Practice>Q 25

Calculate the molality of

K_{2} {CO}_{3}

solution which is formed by dissolving

2.5 g

of it in

1 L

of solution. Density of the solution is

0.85 g L^{- 1}

.

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 2 - Solutions>Chapter Practice>Q 26

Distinguish between the terms molality and molarity. Under what conditions are the molarity and the molality of a solution nearly the same?

EASY

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 2 - Solutions>Chapter Practice>Q 27

How many grams of the concentrated nitric acid solution should be used to prepare

250 mL

of

2.0 M {HNO}_{3}

? (The concentrated acid is

70 % {HNO}_{3}

)

MEDIUM

12th ICSE

IMPORTANT

All In One ISC Chemistry Class 12>Chapter 2 - Solutions>Chapter Practice>Q 28

The

K_{H}

value for

{Ar}_{(g)}, {CO}_{2 (g)}, {HCHO}_{(g)}

and

{CH}_{4 (g)}

are

40.39, 1.67, 1.83 \times 10^{- 5}

and

0.413

respectively. Arrange these gases in the order of their increasing solubility and giving suitable reason.