Combustion analysis of an unknown compound containing only carbon and hydrogen produced 0.2845 g of co2 and 0.1451 g of h2o. what is the empirical formula of the compound?

Question

Joey

Chemistry

15 April, 08:46

Combustion analysis of an unknown compound containing only carbon and hydrogen produced 0.2845 g of co2 and 0.1451 g of h2o. what is the empirical formula of the compound?

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Yaka · Answer 1

CxHy + (x+0.25) O₂ → xCO₂ + 0.5yH₂O

m (CO₂) / {xM (CO₂) }=m (H₂O) / {0.5yM (H₂O) }

0.2845/{44.01x}=0.1451/{9.01y}

x/y=0.4=2:5

C₂H₅ is the empirical formula