Chemistry

Problem

29.2 (w/w) HCl stock solution has a density of

1.25 \text{ g mL}^{-1}

. The molecular weight of HCl is

36.5 \text{ g mol}^{-1}

. The volume (ml) of stock solution required to prepare a 200 m solution of

0.4 \text{ M}

HCl is \_\_\_\_\_. (IIT-JEE 2012)