Question

If 30ml of .5 H2SO4 solution is diluted to 500 ml . Calculate the molarity of new solution.

Answer 1

Volume of H2SO4 (V1) = 30 ml)

Diluted volume of H2SO4 (V2) = 500 ml

Number of moles present in 1000 mL of 0.5 M H2SO4 = 0.5 mol

Initial molarity M1= 0.5 M  

We have to find M2 (molarity of 500 ml solution)

M2V2 = M1V1

M2  � 500  = 0.5 � 30

M2 = 15/ 500 = 0.03 M