What amount of water is added in an aqueous solution of 5000 ml having concentration 1.5 M to prepare 0.5 M solution ?
$ M_1 V_1 = M_2 V_2 5000 ml = 5 lit $ $ 1.5 \times 5 = 0.5 \times V_2 $ $ \therefore V_2 = 15 lit $ $ \therefore Amount of water added = 15 - 5 = 10 lit $