Question

The mass of an atom of oxygen is 16.0 u. Express it in kg.


Class - 9th ICSE

Answer 1

Hey there!

Given,

Mass of one atom of oxygen - 16.0 u

∵ 1 u = 1.66 * 10^-27

∴ The mass of an atom of oxygen = 16.0 * 1.66 * 10^-27 kg

                                                        = 2.656 * 10^-26 kg

Hope It Helps You!

Answer 2

Atomic mass unit = 1.66053904 x 10^-27 kg. this is the same as 1.66053804/10^27kg. There mass of O2 16 u = 16 x 1.66053904/10^27 kg.