The ratio of hydrogen and oxygen in water is 1 : 8. Set up an equation between hydrogen and oxygen and draw its graph. From the graph find the value of hydrogen if oxygen is 12 gram.

Let hydrogen be x.

let oxygen be y.

y=8x.

Given oxygen, y=12

From the equation y=8x,

12= 8x

x = 12/8=1.5 gm

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