Question

5. The mass of an oxygen atom is 16.00 u. Find its mass
in kg​

Answer 1

we have to following conversion between atomic mass unit (u) and kilogram (kg)

1 u ≈ 1.66 × 10−27 kg

so,

in case of oxygen atom, atomic mass = 16 u, so, in kg

16 u = 16 × 1.66 × 10−27 kg

thus,

16 u = 26.56 × 10−27 kg