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0.26 g of an organic compound gave 0.039 g of water and 0.245 g of carbon dioxide on combustion. Calculate the percentage of C & H. |
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Answer» Solution :Weight of organic compound = 0.26 g Weight of WATER = 0.039 g Weight of `CO_(2)` =0.245 g Percentage of HYDROGEN 18 g of water contains 2 g of hydrogen `"0.039 g of water contains" =(2)/(18) xx (0.039)/(0.26) "of H"` `:. % "of hydrogen"=(0.039)/(0.26) xx (2)/(18) xx 100=1.66%` Percentage of CARBON 44g of `CO_(2)` contains 12 g of C `0.245 "g of" CO_(2) "contains"=(12)/(44) xx (0.245)/(0.26) "g of C"` `% "of Carbon"=(12)/(44) xx (0.245)/(0.26) xx 100=25.69%` |
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