The mass of an atom of oxygen is typically expressed in atomic mass units (u) or in kilograms (kg) rather than grams (g). However, I can provide you with the approximate mass of an oxygen atom in grams.
The atomic mass of oxygen is approximately 16 atomic mass units. Since 1 atomic mass unit is defined as 1/12th the mass of a carbon-12 atom, we can convert it to grams using Avogadro's constant.
Avogadro's constant (NA) is approximately 6.022 x 10^23 atoms/mol.
To calculate the mass of one oxygen atom in grams, we can use the following conversion:
1 u = (1 g/mol) / NA
Therefore, the mass of one oxygen atom in grams is approximately:
(16 u) × [(1 g/mol) / NA] ≈ 2.66 x 10^-23 grams
Please note that this value is an approximation and can vary slightly depending on the isotope of oxygen.