At same temperature & pressure two flasks of equal volume contain `NH_(3)&SO_(2)` gas respectively. Identify the flask having (i) greater number of molecules (ii) gaseous substance with greater mass (iii) greater number of atoms.

Explanation

(i) Accoridng to avogadro's hypothesis, at same temperatue and pressure equal volume of all gases contain equal number of molecules.
At same temperature & pressure two flasks having equal vol. contains equal no. of `NH_(3)&SO_(2)` molecules.
(ii) `NH_(3)=17 and SO_(2)=64`.
`therefore` The flask containing `SO_(2)` gas has greater mass.
(iii) `NH_(3)` is a tetra-atmic and `SO_(2)` is triatomic molecule. so, the flask with `NH_(3)` contains greater no of atoms.