1.

A sample of gascous hydrocarbon occupying 11.2 lit at NTP. When completely burnt in air produced 22 g CO_(2) and 18 g H_(2)O. Calculate the weight of hydrocarbon taken (in grams)?

Answer»


Solution :`W_(C)=(12)/(44) XX W_(CO_(2))=(12)/(44) xx 22=6 gr`, `W_(H)=(2)/(18) xx W_(H_(2)O)=(2)/(18) xx 18=2g`
TOTAL WT 6+2=8g (11.2 ml), MW=16 (22.4 ml at STP)


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