Question

How many atoms are there in 40 AmU
of oxygen

Answer 1

hey mate.....
here is ur answer ...


40 g x (1 mol/16 g) x (6.022x10^23 atoms/1 mol) = 1.51 x 10^24 atoms of Oxygen

(Take note of what type of oxygen are we dealing with. There is a difference between “oxygen” and “oxygen gas”, oxygen is monoatomic while oxygen gas is diatomic)

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