Question

what is volume in ml of 0.4 M H2so4 solutions which contains 0.5 moles of H2so4​

Answer 1

Answer:

litres of 0.4 M sulphuric acid solution would contain 2 moles of sulphuric acid.

So, how did I get that answer? Well, M, or molar, is just the number of moles per litre. Or put another way, mol / l.

Therefore I can express 0.4 M as 0.4 mol / l. As I have 5 litres then I have 5 x 0.4, which is 2.

Hence I have 2 moles of sulphuric acid.

You may find this eBook on Moles and Molarity useful as it explains the above calculations.

I hope this is help full

Answer 2

Answer:

20 ml

We know that :

N

1

V

1

=N

2

V

2

Normality=Molarity×Basicity

For sulphuric acid, the basicity is 2.

∴N

1

=0.1×2=0.2N

V

1

= ?

N

2

=0.1×1=0.1N

V

2

=40ml

0.2×V

1

=0.1×40

V

1

=20ml