Answer:
Both helium and carbon dioxide will have the same number of molecules
Explanation:
Step 1:
Data obtained from the question.
Mass of He = 4g
Mass of CO2 = 44g
Step 2:
Determination of the number of mole of He and CO2. This is illustrated below:
For He:
Molar Mass of He = 4g/mol
Mass of He = 4g
Number of mole = Mass/Molar Mass
Number of mole of He = 4/4
Number of mole of He = 1 mole
For CO2 :
Molar Mass of CO2 = 12 + (2x16) = 12 + 32 = 44g/mol
Mass of CO2 = 44g
Number of mole = Mass/Molar Mass
Number of mole of CO2 = 44/44
Number of mole of CO2 = 1 mole
Step 3:
Determination of the number of molecules.
From Avogadro's hypothesis, 1mole of any substance contains 6.02x10^23 molecules.
This means that 1 mole of He will contain 6.02x10^23 molecules and 1 mole of CO2 will also contain 6.02x10^23 molecules.
Therefore, both 4g of He and 44g of CO2 contains the same number of molecules i.e 6.02x10^23 molecules
