In an experiment, 2.4 g of iron oxide on reduction with hydrogen gave 1.68 g of iron. In another experiment, 2.9 g of iron oxide gave 2.09 g of iron on reduction. Which law is illustrated from the abo

Question

In an experiment, 2.4 g of iron oxide on reduction with hydrogen gave 1.68 g of iron. In another experiment, 2.9 g of iron oxide gave 2.09 g of iron on reduction. Which law is illustrated from the above data?

TestHub · Accepted Answer

In first experiment,

24 g of iron oxide gave 1.68 g of iron.

Mass of iron oxide $= 2.4$ g

Mass of iron $= 1.68$ g

Mass of oxygen $= 2.4 - 1.68 = 0.72$

Ratio of masses of iron and oxygen $= \frac{1.68}{0.72} = 7 : 3$

In second experiment,

Mass of iron oxide $= 2.9$ g

Mass of iron $= 2.09$ g

Mass of oxygen $= 2.9 - 2.09 = 0.81$

Ratio of masses of iron and oxygen $= \frac{2.09}{0.81} = 7 : 3$

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