Question

A 0.5 M Soln having 25 ml is diluted to 500 ml soln. find its molality.​

Answer 1

Explanation:

Correct option is

A

0.03 M

Volume V

1

=30ml

Diluted volume of H

2

SO

4

V

2

=500ml

Number of moles present in

1000ml of 0.5MH

2

SO=0.5ml

initial molarity M

1

=0.5M

We have to find M

2

(Molarity of 500 solution)

M

2

V

2

=M

1

V

1

M

2

×500=0.5×30

Answer 2

Answer:

0.025

explanation:

M1V1=M1V2

M1= 0.5

M2= ?

V1= 25ml

V2= 500ml