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0.2475 g of an organic compound gave on ...

0.2475 g of an organic compound gave on combustion 0.4950 g of carbon dioxide and 0.2025 g of water. Calculate the percentage of carbon and hydrogen in it.

Text Solution

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Wt. of organic compound `= 0.2475` g
Wt. of `CO_2` produced `= 0.4950` g
Wt. Of `H_2 O` produced `= 0.20 25` g
Percentage of carbon `= (12)/(44) xx ("Wt. Of" CO_2)/("Wt. Of compound") xx 100`
`= (12)/(44) xx (0.34950)/(0.2475) xx 100 = 54.54`
Percentage of hydrogen `= (2)/(18) xx ("Wt. of" H_2 O )/("Wt. of compound") xx 100`
`= (2)/(18) xx (0.2025)/(0.2475) xx 100 = 9.09`
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