Question

if 0.2M 100 ml hcl solution is mixed with 300 ml hcl solution find molarity of mixture​

Answer 1

Heya mate

Molarity=No of moles of solute [H+]/

Volume of solution

No of moles of [H+] for HCI=0.3*0.1=0.3

No. Of moles of [H+] for H2SO4 =0.2*2*0.3=0.12(since there are two moles H+ in a mole H2SO4

Total no. Of moles [H+] = 0.15

Total volume of solution =300ml=0.3L

Thus molarity 0.15/0.3=0.5 moles/L