Question

How is the ratio of hydrogen and oxygen in water is 1:8m

Answer 1

Explanation:

Molecular formula of water is

H2O

H2 : O

Now,

mass of one atom of hydrogen is 1 amu.

mass of one atom of Oxygen is 16 amu.

amu is atomic mass unit which you will learn in class 8.

H2 : O

= 1×2 : 16×1

= 2:16

= 1:8

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Answer 2

Water molecule have 2 hydrogen atom and one oxygen atom.

Mass of 1 H = 1

So mass of 2H = 2 eq. 1

Mass of one oxygen atom=16 eq. 2

( by equipment. 1&2)

Mass of Her : Mass of O

2:16

1:8

Hence proved