Question

Question :-One atomic mass unit (a.m.u) contains how many grams???

Answer 1

Because we have, for the mass of an atom of carbon 12, call it mC12mC12, that

mC12=12amumC12=12amu

and furthermore

1mol⋅mC12=12g1mol⋅mC12=12g

therefore

mC12=12amu=12g/molmC12=12amu=12g/mol

So finally we get that 1g/mol=1amu1g/mol=1amu .

However, my chemistry teacher is telling me that those are two completely different things and that I am confused between the mass per atom and the mass per 6.022⋅10236.022⋅1023atoms

Answer 2

one twelve part of C -12 amu