According to the periodic table , a single carbon has a mass of 12.011 amu. what is the mass of a single carbon atom in grams?
There is no single carbon atom with that mass of 12.011 units.
Natural carbon is formed by 98.93% of isotope C-12 with mass 12.000000 units, and 1.07% of isotope C-13 with mass 13.003355 units.
If you take the average of ten thousand atoms, you get the following weighed average mass of carbon atoms:
Now, if we are interested to know the masses of actual carbon atoms in grams, we should take the most abundant isotope, C-12.
Its mass is exactly 12 u because of the definition of the "unified atomic mass unit" or u as one-twelfth of that isotope carbon.
That mass corresponds to
I hope this would be useful
Well, no carbon atom has exactly a mass of
For instance, carbon does not only exist as
If you still want to know what will the average mass of a carbon atom in grams, we can find that out as follows.
We know that
So, the mass of a carbon atom in grams will be
So, the average mass of a carbon atom will be approximately