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0.30 g of a substance gives 0.88 g of ca...

0.30 g of a substance gives 0.88 g of carbon dioxide and 0.54 g of water. Calculate the percentage of carbon and hydrogen in it.

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Weight of the organic compound 0.30 g
Weight of carbondioxide formed 0.88 g
Weight of water formed = 0.54 g
1 mol of `CO_2` = 1 mol of C
44 g of `CO_2` =12 g of C
0.88 g `CO_2 =(12)/(44) xx 0.88` g of carbon
0.30 g .compound contains `=(12)/(44) xx (88)/(30)` of carbon
100 g of the compound contains `=(12)/(44) xx (0.88)/(.30) xx 100`
=80% of carbon
1 mol of `H_(2)O` =2 mol of hydrogen atoms
`18g H_(2)O=` 2 g of hydrogen
0.54 of `H_(2)O=(2)/(18) xx 0.54` of hydrogen
0.80 g of compound containing `=(2)/(18) xx 0.54` of hydrogen
100 g of the compound contain `=(2)/(18) xx (0.54)/(0.30)xx 100=20%`
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