July 21, 2019, 05:28:11 PM
Forum Rules: Read This Before Posting


Topic: Moles of Nitrogen - N or N2?  (Read 1091 times)

0 Members and 1 Guest are viewing this topic.

Offline grillage

  • Very New Member
  • *
  • Posts: 1
  • Mole Snacks: +0/-0
Moles of Nitrogen - N or N2?
« on: October 20, 2012, 04:49:38 AM »
My son has a question and I am trying to help him. He is given the following:

2NH3 + 3CuO  :rarrow: N2 + 3Cu + 3H2O

We are told that 2.24dm cubed of Ammonia was allowed to react. Then we are asked how many moles of Nitrogen will be formed. What I cannot understand is whether it is how many moles of N atoms or N2 molecules? He has figured out that the volume going in equates to one mole of Ammonia, so it seems that you should get 0.5 moles of N2 since the reaction requires 2 Amonia for each N2. Am I off base? My son thinks I am wrong.

Appreciate any help.

Andrew

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 25094
  • Mole Snacks: +1648/-396
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: Moles of Nitrogen - N or N2?
« Reply #1 on: October 20, 2012, 05:14:44 AM »
Moles of N2.

But 2.24 dm3 is not 1 mole.
Chembuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info, pH-meter.info

Sponsored Links