Question

the molarity of 100 ml solution of naoh is 5M which is diluted by adding water such that the molarity becomes 0.1 M. what is the volume of water added​

Answer 1

Answer:

12th

Chemistry

Solutions

Expressing Concentration of Solutions

100 ml of 2 M NaOH solution...

CHEMISTRY

avatar

Asked on December 20, 2019 by

Bhavan Rawat

100 ml of 2M NaOH solution is diluted by water and the final molarity becomes 0.5. The volume of water added to the solution is:

MEDIUM

Share

Study later

ANSWER

Molarity=

V(solution)

n

M

1

=

V

1

(solution)

n

...(1)

M

2

=

V

2

(solution)

n

...(2)

From (1) and (2)

M

2

M

1

=

V

1

V

2

substituting the values,

V

2

=

0.5M

2M×100ml

V

2

=400ml

Hence, V

2

−V

1

=400ml−100ml=300ml

Therefore, 300ml of water is added to the solution