The atomic mass unit is defined as 1/12 of the mass of a carbon 12 atom, and 1 atomic mass unit has a mass of 1.6605 x 10⁻²⁴ g. It follows that one carbon atom has a mass of 12 x 1.6605 x 10⁻²⁴ and thus the number of carbon atoms in present in 12 g of carbon equal 12 / (12 x 1.6605 x 10⁻²⁴) which equals 6.02 x 10²³.True / False.