First slide
Stoichiometry and Stoichiometric Calculations
Question

5 ml of unsaturated hydrocarbon requires 15 ml of Oxygen for complete combustion to produce 10 ml of carbondioxide. Formula of Hydrocarbon is

Moderate
Solution

CxHy+  x+y4O2  xCO2+y2H2O

5ml       5  x+y4                5X               5y2

Given 5x = 10

                x = 2

5  x+y4=15

x+y4=3

y4=1

Y = 4

Formulae =C2H4

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