Respuesta :
the number of molecules because 1 mol is equal to 6.02x10^23 molecules, therefore they both have the same amount of molecules because they both have 1 mol
Answer : The correct option is, the number of molecules.
Explanation :
As we are given that 1 mole of oxygen gas, [tex](O_2)[/tex] and 1 mole of carbon monoxide gas, (CO).
From the given options, the number of molecules must be same when comparing 1 mole of oxygen gas, [tex](O_2)[/tex] and 1 mole of carbon monoxide gas, (CO) because there are 2 molecules present in both oxygen gas and carbon monoxide gas.
The mass of 1 mole of oxygen gas, [tex](O_2)[/tex] is, 32 g and the mass of 1 mole of carbon monoxide gas, (CO) is, 28 g. So, the mass will not be same.
The number of oxygen atoms in 1 mole of oxygen gas, [tex](O_2)[/tex] is, [tex]2\times 6.022\times 10^{23}[/tex] and the number of oxygen atoms in 1 mole of carbon monoxide gas, (CO) is, [tex]1\times 6.022\times 10^{23}[/tex]. So, the number of oxygen atoms will not be same.
The volume of 1 mole of oxygen gas, [tex](O_2)[/tex] and 1 mole of carbon monoxide gas, (CO) will not be same due to the difference in the masses.
Hence, the correct option is, the number of molecules.