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Ideal Gases

  1. Sep 19, 2009 #1
    1. The problem statement, all variables and given/known data
    A sample of gaseous substance composed of only hydrogen and boron,
    underwent combustion with excess oxygen.
    As a result, all the hydrogen turned into water, and all the boron turned into B2O3.
    a) find the empirical formula of the substance?
    b) find the chemical formula of the substance?
    c) what is the molar mass of the substance?
    d) what is the mass of the B2O3 that was formed?

    2. Relevant equations
    substance mass: 0.596 gr
    substance volume: 0.484 L
    temperature: 273 K
    pressure: 1 atm
    mass of water: 1.17 gr
     
  2. jcsd
  3. Sep 19, 2009 #2

    Borek

    User Avatar

    Staff: Mentor

    You have to show your attempts to receive help. This is a forum policy.
     
  4. Sep 19, 2009 #3
    Problem solved.
    And thank you for the remark.
    I'll keep that in mind.
     
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