Question

0.4 M 100 ml solution of NaCl is diluted to 1000 ml. The molarity of resultant solution is

Answer 1

M1 = 0.4

V1 = 100ml

M2 = ?

V2 = 1000ml

The moles will remain same in each case,

M1 X V1 = M2 X V2

0.4 x 100 = M2 x 1000

M2 = 0.04 mol/L