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Gas Laws and Stoichiometry

  1. Mar 2, 2007 #1
    Magnesium burns in oxygen gas to produce magnesium oxide. What mass of magnesium will react with a 0.25 L container of oxygen gas at 80oC and 770 mmHg? :confused:



    I need to use stoichiometry to set up the pronlem and PV=nRT to solve.

    I have three possible solutions, but I don't know which one is the correct one. The solutions I have are .945 g, .418 g, and .124 g.
     
  2. jcsd
  3. Mar 2, 2007 #2
    Have you done any work on this problem? If you show work we can help you through the problem. Do you have the equation of the reaction?
     
  4. Mar 2, 2007 #3

    Borek

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    Staff: Mentor

    Use PV=nRT to calculate amount of oxygen.
     
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