Question

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

Answer 1

One mole of carbon atoms weighs 12 g (Given)

i.e., mass of 1 mole of carbon atoms = 12 g

Then, mass of 6.022 x 10²³ number of carbon atoms = 12 g

${\displaystyle \text{Therefore, mass of 1 atom of carbon}=\frac{12}{6.022\times {10}^{23}}g=1.9926\times {10}^{-23}g}$