Which of the following contains the maximum number of molecules?

Explanation:

Molar mass of CO2 is 44g/mol. So 44g CO2= 1mole of CO2

Therefore 1g CO2 = 1/44 = 0.0227 mole of CO2.

Molar mass of N2is g/mol. So 14g CO2= 1mole of N2

Therefore 1g N2 = 1/14 = 0.0714 mole of N2

Molar mass of H2 is 2g/mol. So 2g H2= 1mole of H2

Therefore 1g H2 = 1/2 = 0.5 mole of H2.

Molar mass of CH4 is 16/mol. So 16gCH4= 1mole of CH4

Therefore 1g CH4 = 1/16 = 0.0625 mole of CH4.

Final Answer:

So, from the above calculation easily found value 0.5 mole is higher, so option C 1g H2 Contain maximum number of molecules