Question

volume content of co2 in air is 0.03%at STP.Calculate the no.of molecules in one litre air​

Answer 1

Volume content of air is 0.03 means that 100 parts by volume of air contains 0.03 parts of CO2 by volume. So, 1 litre of air will contain 0.0003 litres of CO2. We know that at NTP 22.4 litres of CO2 contains one mole of CO2 i.e.- 6.022 * 10^23 number of molecules. so 0.0003 litres of CO2 will contain 0.0003/22.4 no.

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