Question

If one mole of carbon atoms weighs 12 get, what is the mass of 1 atom of carbon?

Answer 1

1 mole = $6.022*10^{23}$ atoms
$6.022*10^{23}$ atoms = 12 unit
1 atom = $\frac{12}{6.022*10^{23}}$ unit
1 atom = $1.9926 * 10^{-23}$

Answer 2

1 atomic mass equal to 12u