1120 mL of ozonized oxygen $\left({\mathrm{O}}_2+{\mathrm{O}}_3\right)$ at 1 and 273 K weighs 1.76 gm . The reduction in volume on passing the mixture through alkaline pyrogallol solution is :

1120 mL of ozonized oxygen $\left({\mathrm{O}}_2+{\mathrm{O}}_3\right)$ at 1 and 273 K weighs 1.76 gm . The reduction in volume on passing the mixture through alkaline pyrogallol solution is :

$\left[\frac{V}{22400}\right]\times 48+\left[\frac{1120-V}{22400}\right]\times 32=1.76$

$3V+1120\times 2-2V=\frac{1.76\times 22400}{16}$

$V_{{\mathrm{O}}_3}=224\mathrm{ml}$

$\therefore V_{{\mathrm{O}}_2}= 896\mathrm{ml}$