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0.2475 gm of an organic substance gave o...

`0.2475` gm of an organic substance gave on combustion `0.495` gm of `CO_2` and `0.2025` gm of `H_2O`. Calculate the percentage of carbon and hydrogen in it.

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Here mass of the organic substance taken `=0.2475` gm
Mass of `CO_2` formed `=0.4950` gm,
Mass of `H_2O` formed `=0.2025` gm.
(i) `"Percentage of C"= 12/44xx("Mass of CO"_2" formed")/("Mass of compound taken")xx100`
Percentage of carbon in the compound `=(12)/(44)xx0.4950xx(100)/(0.2475)=54.54`
(ii). `"Percentage of H"= 2/18xx("Mass of H"_2"O formed")/("Mass of compound taken")xx100`
Percentage hydrogen in the compound `=(2)/(18)xx0.2025xx(100)/(0.2475)=9.09`
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