Q on Molarity?

Question

How much volume of 10 M HCl should be diluted with water to prepare 2 litre of 5 M HCl? And plz do xplain wat u do?

Answer 1

Dissociable hydrogen atomsin HCl is 1
Thus formal no of HCl is 1.
Molarity represented by M
Volume in litres by V
M1*V1=M2*V2
10*V1 =5*2
V1=1 litre
hence 1 litre of HCl is required

Answer 2

the answer given by som is exactly right.by using the formula M1*V1=M2*V2 we can get answer