The ratio of hydrogen and oxygen by mass in water is:

1 : 8

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8 : 1

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2 : 1

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1 : 2

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Solution

The correct option is B $1 : 8$
The ratio of hydrogen and oxygen by mass in water is $1 : 8$ . The atomic masses of H and O are 1 g/mol and 16 g/mol respectively. In $H_{2} O$ , the ratio of hydrogen and oxygen by mass will be $2 : 16 = 1 : 8$ .

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Similar questions

In water, the mass ratio of hydrogen to oxygen is always 1:8.

In water , the proportion of oxygen and hydrogen by mass is :
(a) 1 : 4
(b) 1 : 8
(c) 4 : 1
(d) 8 : 1

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