What is the molecular mass of atomic helium?
Express your answer with the appropriate units.


mHe = 
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Part M
What is the molecular mass of atomic nitrogen?
Express your answer with the appropriate units.


mN = 
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Part N
What is the molecular mass of molecular nitrogen?
Express your answer with the appropriate units.


mN2 = 
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L)
molar mass of He = 4.003 g/mol
This is mass of 6.022*10^23 atoms
we have below equation to be used:
mass of 1 atom = molar mass /(6.022*10^23)
mass of 1 atom = 4.003/(6.022*10^23)
mass of 1 atom = 6.647*10^24 g
Answer: 6.65*10^24 g
M)
molar mass of N = 14.01 g/mol
This is mass of 6.022*10^23 atoms
we have below equation to be used:
mass of 1 atom = molar mass /(6.022*10^23)
mass of 1 atom = 14.01/(6.022*10^23)
mass of 1 atom = 2.326*10^23 g
Answer: 2.33*10^23 g
N)
Molar mass of N2 = 28.02 g/mol
molar mass of N2 = 28.02 g/mol
This is mass of 6.022*10^23 molecules
we have below equation to be used:
mass of 1 molecule = molar mass /(6.022*10^23)
mass of 1 molecule = 28.02/(6.022*10^23)
mass of 1 molecule = 4.65*10^23 g
Answer: 4.65*10^23 g
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