Question

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

Answer 1

Given:
Mass of oxygen atom $=16\mu$
$1\mu$ = $1.66\times {10}^{-27}kg$
Mass of $16\mu$

$=16\times 1.66\times {10}^{-27}$
$=2.656\times {10}^{-26}kg$