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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: toffeefan on September 03, 2009, 10:56:50 AM

Title: Mole balance question
Post by: toffeefan on September 03, 2009, 10:56:50 AM

Consider the following equation (I know the equation is not balanced, its just a random example I've created):

5C₂H₄O + 2H₂  :rarrow: 3C₂H₆O

A gaseous mixture consisting of 50 mol% H₂ and 50 mol% C₂H₄O before a reaction was 5 moles. After reaction, it was found that the total number of moles left was 2. Here is the mole balance I've created, is it correct?

Moles of C₂H₄O left + Moles of H₂ left + Moles of C₂H₆O produced = 2 mol (total moles left)

(2.5mol - 5x) + (2.5mol - 2x) + 3x = 2 moles
              3                   3         

Where X = mol of C₂H₆O produce.

I'm not sure if the mole balance is correct, especially the 3x part. Can somebody please clarify? Thanks.

Title: Re: Mole balance question
Post by: toffeefan on September 04, 2009, 08:47:16 AM

Hi,

I posted this on another forum and it got locked. There is no answer for this, it's just an example i created. All i want to know is weather the method i set up for this mole balance is correct.

Title: Re: Mole balance question
Post by: Borek on September 04, 2009, 06:17:12 PM

As far as I can tell at 0:20 am it looks OK.