Question

how many molecules of co2 are present in 1L of air containing 0.3% volume of co2 at NTP​

Answer 1

Answer:

1 liter is 100%

0.3% equal to 3x 10^-3 litre

At stp 1 mole =22.4 litre.

3 x10^-3 litre how many moles?

3. X10^-3/22.4 =

1.33 X 10^-4 moles

Molecules of CO2 =mole X 6x 10^23

=8x10^19 molecules of CO2