H3C -N- CH3
H
The mass of carbon, nitrogen, and hydrogen are 12amu, 14amu, and 1 amu. What is the molecular weight of this molecule?
How many moles are in 500g of the above molecule?
The molecular weight of the molecule H3C-N-CH3 can be calculated by adding the atomic weights of the individual atoms:
Molecular weight = (3 x 1) + 12 + 14 + (3 x 1)
Molecular weight = 3 + 12 + 14 + 3
Molecular weight = 32 amu
To calculate the number of moles in 500g of this molecule, we can use the formula:
Number of moles = Mass / Molecular weight
Number of moles = 500g / 32 amu
Number of moles = 15.625 moles
Therefore, there are 15.625 moles in 500g of the molecule H3C-N-CH3.