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in Chemistry by (83.6k points)

Under the same conditions of temperature and pressure, one collects 2.2 litre of CO2 , 3.3 litres of Cl2 , 5.5 litres of hydrogen, 4.4 litres of nitrogen and 1.1 litres of SO2 . In which gas sample their will be: 

(i) Greatest number of molecules. 

(ii) The least number of molecules.

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We know that 22.4 litres of any gas at S.T.P. has 6.023 x 1023 molecules. If the volume of gas at S.T.P. is more than 22.4 litres, then the number of molecules will be greater and vice-versa. 

(i) 5.5 litres of hydrogen will contain greatest number of molecules. 

(ii) 11 litres of sulphur dioxide will contain least number of molecules.

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