How are atoms weighed

Question

How are atoms weighed

In: Chemistry

Answer 1

You can’t weigh a singular atom, you get a mol value which is 6.022*10^23 of a particular amount of substance. Then you divide that number (Avogadro’s number) by your molar mass of the substance in grams (from the periodic table) to get the weight of how much of whatever you have.

Here’s an example
1 atom / (6.022*10^23 atoms) * 1 mol / 1 mol * (196.97 g) = 3.27*10^24 g

12g C = 1 mol = 6.022*10^-23