If one mole of carbon atoms weighs 12 grams, what is the mass (in grams) of 1 atom of carbon?

Explanation

1 mole of carbon atoms means `6.022 xx 10^(23)` carbon atoms. In this case 1 mole of carbon atoms weighs 12 grams. This means that the mass of `6.022 xx 10^(23)` atoms of carbon is `12` grams.
Now, `6.022 xx 10^(23)` atoms of carbon have mass `= 12 g`
So, 1 mole of carbon has mass `= (12)/(6.022 xx 10^(23))g`
Thus, the absolute mass of 1 atoms of carbon is `1.99 xx 10^(-23)`gram.