Limiting Reagent for the Reaction of Hydrogen and Oxygen to Form Water

This Demonstration shows the effect of a limiting reagent during the formation of a product, given varying amounts of reactants. The two reactants, hydrogen and oxygen, are shown to yield the product, water, assuming an appropriate catalyst is present. The first set of cylinders shows the number of moles of each reagent, and the second set shows the final number of moles after the reaction has run to completion. Either of the reactants can be the limiting reagent, based on the initial number of moles and the stoichiometry of the reaction.


  • [Snapshot]
  • [Snapshot]
  • [Snapshot]


Snapshot 1: neither of the reactants limits the reaction
Snapshot 2: oxygen is the limiting reagent in this situation; there are 0 moles of oxygen remaining after the reaction proceeds to produce water
Snapshot 3: hydrogen is the limiting reagent in this situation; this is shown by the 0 moles of hydrogen in the final state
    • Share:

Embed Interactive Demonstration New!

Just copy and paste this snippet of JavaScript code into your website or blog to put the live Demonstration on your site. More details »

Files require Wolfram CDF Player or Mathematica.

Mathematica »
The #1 tool for creating Demonstrations
and anything technical.
Wolfram|Alpha »
Explore anything with the first
computational knowledge engine.
MathWorld »
The web's most extensive
mathematics resource.
Course Assistant Apps »
An app for every course—
right in the palm of your hand.
Wolfram Blog »
Read our views on math,
science, and technology.
Computable Document Format »
The format that makes Demonstrations
(and any information) easy to share and
interact with.
STEM Initiative »
Programs & resources for
educators, schools & students.
Computerbasedmath.org »
Join the initiative for modernizing
math education.
Step-by-Step Solutions »
Walk through homework problems one step at a time, with hints to help along the way.
Wolfram Problem Generator »
Unlimited random practice problems and answers with built-in step-by-step solutions. Practice online or make a printable study sheet.
Wolfram Language »
Knowledge-based programming for everyone.
Powered by Wolfram Mathematica © 2018 Wolfram Demonstrations Project & Contributors  |  Terms of Use  |  Privacy Policy  |  RSS Give us your feedback
Note: To run this Demonstration you need Mathematica 7+ or the free Mathematica Player 7EX
Download or upgrade to Mathematica Player 7EX
I already have Mathematica Player or Mathematica 7+