Question

O
ch
.
co
o De
di
substances.
O
.
р
S
powder . a plastic spoon.
ACTIVITY
To find whether a fixed amount of water
dissolves equal amounts of soluble
Materials required : Three beakers A, 8
powder • common salt • copper sulphate
and C half filled with water sodium carbonate
Method : Take the beaker A and to it add
1 spoonful of washing soda powder. Stir the
contents of the beaker. If the washing soda
powder dissolves completely add one spoonful
more. Repeat the procedure till the washing
soda stops dissolving. Count the number
spoonfuls of washing soda added and enter in
the table below.
Repeat the procedure with beaker B and
common salt as well as with beaker C and
copper sulphate powder. Enter the number of
spoonfuls of common salt and copper sulphate
powder in the table.
No. of spoonfuls added
Substance
of 이
Washing soda powder
Common salt
Copper sulphate powder
Conclusion : You will notice that different
amounts of soluble substances dissolve in fixed
amount of water so as to form the saturated
solution.​

Answer 1

Answer:

hdidkfbfjjdbhdf jdbh hh jnfnr rjdkdkspsojshfbf

Answer 2

Answer:

O

ch

.

co

o De

di

substances.

O

.

р

S

powder . a plastic spoon.

ACTIVITY

To find whether a fixed amount of water

dissolves equal amounts of soluble

Materials required : Three beakers A, 8

powder • common salt • copper sulphate

and C half filled with water sodium carbonate

Method : Take the beaker A and to it add

1 spoonful of washing soda powder. Stir the

contents of the beaker. If the washing soda

powder dissolves completely add one spoonful

more. Repeat the procedure till the washing

soda stops dissolving. Count the number

spoonfuls of washing soda added and enter in

the table below.

Repeat the procedure with beaker B and

common salt as well as with beaker C and

copper sulphate powder. Enter the number of

spoonfuls of common salt and copper sulphate

powder in the table.

No. of spoonfuls added

Substance

of 이

Washing soda powder

Common salt

Copper sulphate powder

Conclusion : You will notice that different

amounts of soluble substances dissolve in fixed

amount of water so as to form the