0.378 g od an organic compound containing carbon and hydrogen was subjected to cobustion by Liebig's method , the CO_(2) and H_(2)Oformed were passed through potash bulbs and CaCl_(2) (anhydrous) tube. At end of the experiment, the increase in the respective weights were 0.264 g and 0.162 g. Calculate the percentage of carbon and hydrogen.

0.378 g od an organic compound containing carbon and hydrogen was subj

1.	0.378 g od an organic compound containing carbon and hydrogen was subjected to cobustion by Liebig's method , the CO_(2) and H_(2)Oformed were passed through potash bulbs and CaCl_(2) (anhydrous) tube. At end of the experiment, the increase in the respective weights were 0.264 g and 0.162 g. Calculate the percentage of carbon and hydrogen.
Answer» Solution :Increase in weight of POTASH BULBS (mass pf `CO_(2)` evolved) `=0.264 G` Increase in weight of `CaCl_(2)` tube (mass of `H_(2)O` forward) `=0.162 g` `%` of `C=12/44xx("Mass of "CO_(2))/("Mass of compound")xx100=12/44xx0.264/0.378xx100= 19.05%` `%` of `H=12/18xx("Mass of "H_(2)O)/("Mass of compound")xx100=2/18xx0.162/0.378xx100= 4.76 %`