Question

a solution contains 410.3g of sulphuric acid per litre of the solution at 20°c.if the density is 1.243gcm^3 what will be its molarity amd molality​

Answer 1

Answer:

CHEMISTRY

avatar

Asked on November 22, 2019 by

Anshuli Silu

A solution contains 410.3 g of H

2

SO

4

per litre of solution at 20

o

C. If the density is 1.243g/mL, what will be its molarity and molality?

Share

Study later

ANSWER

Mol. mass of H

2

SO

4

=98

No. of moles of H

2

SO

4

=

98

410.3

=4.186

Molarity of H

2

SO

4

solution =

Volume of sol.in litre

No.of moles ofH

2

SO

4

=

1

4.186

=4.186M

Mass of 1 litre H

2

SO

4

solution =1000×1.243=1243g

Mass of water =(1243−410.3)=832.7g=

1000

832.7

kg

Molality of solution =

Mass of water in kg

No.of moles ofH

2

SO

4

=

832.7

4.186

×1000

=5.027m

follow me n mark as brainliest plzzzzz