Question

Calculate the ratio by number of atoms in water molecules ? (Mass Ratio of H:O in water is 1:8)

Answer 1

Explanation:

as the mass ratio is given as 1:8

now dividing it by its molar mass

molar mass of H2=2

molar mass of O2=32

mole ratio is 1/2 : 8/32

=2:1

mole x avagadro number is no.of atom:

so 2 x 6.022 x 10^23 : 6.022 x 10^23

by cancelling 6.022 x 10^23 both sides

We get 2:1 ratio for the no.of atoms

hope you understood

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