Question

The molecular weight of H2SO4 is 98. The amount of the acid present in 400ml of 0.1M solution

Answer 1

So
1 litre of 1 M contains 1 mole of the acid.

1 litre of 0.1 M contains 0.1 mole of the acid.

100 ml litre of 0.1 M contains 0.01 mole of the acid.

so 400 ml contains??

Answer 2

It may be 10ml 20ml 30ml 40ml