Modern Approach to Chemical Calculations>Chapter 7 - Volumetric Calculation>PROBLEMS>Q 7

MEDIUM

JEE Main

IMPORTANT

Earn 100

Find the equivalent weight of $H_{3} {PO}_{4}$ , in the reaction,

$[Ca (OH)_{2} + H_{3} {PO}_{4} = {CaHPO}_{4} + 2 H_{2} O]$ .

50% studentsanswered this correctly

Important Questions on Volumetric Calculation

MEDIUM

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 7 - Volumetric Calculation>PROBLEMS>Q 8

A

250 ml

sample of

0.20 M

hydrochloric acid is to be made by diluting the approximate amount of the concentrated reagent

11.7 M

. What volume (in ml) of the latter should be used?

MEDIUM

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 7 - Volumetric Calculation>PROBLEMS>Q 9

How many

ml

of each of two hydrochloric acids of strengths

12 N

and

3 N

are to be mixed to make one litre of

6 N

solution?

MEDIUM

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 7 - Volumetric Calculation>PROBLEMS>Q 10

What volumes of

2 M

and

6 M

solutions of

HCl

have to be mixed to prepare

500 mL

of a

3 M

solution? Disregard the change in the volume in mixing.

MEDIUM

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 7 - Volumetric Calculation>PROBLEMS>Q 11

1 litre

of a solution contains

18.9 gram

of

{HNO}_{3}

, and

1 litre

of another solution contains

3.2 gram

of

NaOH

. In what volume ratio must these solutions be mixed to obtain a solution having a neutral reaction?

HARD

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 7 - Volumetric Calculation>PROBLEMS>Q 12

10 mL

of sulfuric acid solution

(sp . gr . = 1.84)

contains

98 %

by weight of pure acid. Calculate the volume(in

mL

)of

2.5 N

NaOH

solution required to just neutralize the acid.

MEDIUM

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 7 - Volumetric Calculation>PROBLEMS>Q 13

What is the molality of a

13 %

solution (by weight) of

H_{2} {SO}_{4}

solution? It's density is

1.090 g / mL

. To what volume should

100 mL

of this acid be diluted in order to prepare

1.5 N

solution?

MEDIUM

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 7 - Volumetric Calculation>PROBLEMS>Q 14

____ mL

of concentrated sulphuric acid of specific gravity

1.84 g / mL

containing

98 %

H_{2} {SO}_{4}

solution by weight is required to prepare

200 mL

of

0.5 N

acid solution.

HARD

JEE Main

IMPORTANT

Modern Approach to Chemical Calculations>Chapter 7 - Volumetric Calculation>PROBLEMS>Q 15

26 mL

of a

1 N {Na}_{2} {CO}_{3}

solution is neutralized by the acids

A

and

B

in different experiments. The volumes of the acids

A

and

B

required were

10 mL

and

40 mL

respectively. How many volumes of

A

and

B

are to be mixed in order to prepare

1 L

of

1 N

acid solution?