Answer to Question #24794 in Inorganic Chemistry for Tico Fuga

Question #24794
a. If 4.5 mol of ethane, C2H6, undergo combustion according to the unbalanced equation C2H6+O2---->CO2+H2O, how many moles of oxygen are required? b. How many moles of each product are formed?
1
Expert's answer
2013-02-22T04:27:39-0500
If 4.5 mol of ethane, C2H6, undergo combustionaccording to the unbalanced equation the amount of O2 is the samethat amount of ethane.

C2H6 + O2 ----> CO2 + H2O, so it is 4.5 mol of O2

But when it is balanced equation the amount of O2 is next,

C2H6 + 7/2 O2 ----> 2CO2 + 3H2O

4.5 mol* 7/2 = 15.72 mol

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