ICSE Chemistry>Chapter 2 - Solutions>REVIEW EXERCISES>Q 2.2

MEDIUM

12th ICSE

IMPORTANT

Earn 100

Calculate molality of $1$ litre solution of $90 % H_{2} {SO}_{4}$ (weight/volume). The density of solution is $1.80 g {mL}^{- 1}$ .

Important Questions on Solutions

MEDIUM

12th ICSE

IMPORTANT

ICSE Chemistry>Chapter 2 - Solutions>REVIEW EXERCISES>Q 2.21

Calculate the number of molecules of oxalic acid

(H_{2} C_{2} O_{4} . 2 H_{2} O)

in

100 mL

of

0.2 N

oxalic acid solution.

MEDIUM

12th ICSE

IMPORTANT

ICSE Chemistry>Chapter 2 - Solutions>REVIEW EXERCISES>Q 2.22

150 {cm}^{3}

of a decimolar

NaOH

solution are diluted to

750 {cm}^{3}

. Find the molarity of the diluted solution.

MEDIUM

12th ICSE

IMPORTANT

ICSE Chemistry>Chapter 2 - Solutions>REVIEW EXERCISES>Q 2.23

One tonne of air contains

2 \times 10^{- 3} g

of carbon as smoke. Calculate the concentration of carbon in ppm in air.

MEDIUM

12th ICSE

IMPORTANT

ICSE Chemistry>Chapter 2 - Solutions>REVIEW EXERCISES>Q 2.24

A sample of hard water is found to contain

50 mg

of

{CaSO}_{4}

in

12 kg

of the sample. Calculate the hardness of the sample in terms of ppm of

{CaSO}_{4}

.

MEDIUM

12th ICSE

IMPORTANT

ICSE Chemistry>Chapter 2 - Solutions>REVIEW EXERCISES>Q 2.25

A

6.90 M

solution of

KOH

in water contains

30 %

by weight of

KOH

. What is the density of the solution?

MEDIUM

12th ICSE

IMPORTANT

ICSE Chemistry>Chapter 2 - Solutions>REVIEW EXERCISES>Q 2.26

Define vapour pressure of a liquid. What is the effect on vapour pressure when a non-volatile solute is added to it?

MEDIUM

12th ICSE

IMPORTANT

ICSE Chemistry>Chapter 2 - Solutions>REVIEW EXERCISES>Q 2.27

Why is the vapour pressure of a solution of glucose in water lower than that of water?

MEDIUM

12th ICSE

IMPORTANT

ICSE Chemistry>Chapter 2 - Solutions>REVIEW EXERCISES>Q 2.28

What does an ideal solution mean at molecular level?