February 20, 2017

Homework Help: Chemistry!

Posted by Casey on Saturday, July 10, 2010 at 5:30pm.

Use the equation below and determine what volume of O2 at STP is needed to react with 1.5 moles of C2H4?

Balanced equation:

C2H4 + 3O2 --> 2CO2 + 2H20

So 1 mole of C2H4/3 mol O2 --> 1.5 mols/ 4.5 mols O2. So if its 1 mol equals 1 liter, than it should be 4.5 mols of O2 x 1 liter = 4.5 Liters O2.

Is this correct or am I missing something? I am trying to work out these equations but was not given an answer key to compare to.

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