How many molecules of `CO_(2)` are present in one litres of air containing 0.03 % volume of `CO_(2)` at N.T.P ?

How many molecules of CO_2 are present in one litre of air containing 0.03% volume of CO_2 at N.T.P.?

How many molecules of CO_2 are present in one litre of air containing 0.03% by volume of CO_2 at STP ?

How many molecules of CO_(2) are present in its molar volume ?

How many molecules of O_(2) are present in 1 L air containing 80% volume of O_(2) at STP?

How many molecules of O_(2) are present in 1 L air containing 80% volume of O_(2) at STP?

How many molecules of O2 are present in 1L air containing 80% volume of O2 at STP?

How many molecules are present in 0.224 L of a gas at N.T.P.?

How many molecules of N_(2) are contained in 1.12 litre of air if the volume content of N_(2) in air is 80% at N.T.P.

How many gram atoms of oxygen are present in 11.2 litres of CO_2 at NTP ?