An unknown compound contains only carbon, hydrogen, and oxygen (C x H y O z). Co

Question

An unknown compound contains only carbon, hydrogen, and oxygen (C x H y O z). Combustion of 5.50g of this compound produced 8.07g of carbon dioxide and 3.30g of water.

A) How many moles of carbon,C, were in the original sample?

B) How many moles of hydrogen, H, were in the original sample?

Explanation / Answer

CxHyOz + O2 -------> CO2 + H2O .....x g ...+ 32 g -----> 44 g + 18 g 6.50 g .............------> 9.53 g + 3.90 g But is impossible to say the correct number of moles in CxHyOz, because you need to know the balancing of the reaction!!

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