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Moles of H2 from h20

  1. Nov 4, 2013 #1
    1. The problem statement, all variables and given/known data

    Suppose you have 6 moles of H20. You want to calculate how many moles of H2 you have. how many is it?

    2. Relevant equations

    Avagradro's number: 6.02*10^{23}



    3. The attempt at a solution

    I got to the equation:
    [itex]2H_2+O_2\rightarrow 2H_2O[/itex]
    I kind of figured out that since H is diatonic, we need to do that^.

    Although from here I don't know how to proceed.
     
  2. jcsd
  3. Nov 5, 2013 #2

    Borek

    User Avatar

    Staff: Mentor

    One molecule of H2O contains two atoms of H, which is equivalent to one molecule of H2.

    One dozen molecules of H2O contains two dozens of atoms of H, which is equivalent to one mole of molecules of H2.

    One mole of molecules of H2O contains ____ moles of atoms of H, which is equivalent to ____ mole of molecules of H2.

    Six moles of molecules of H2O contain ____ moles of atoms of H, which is equivalent to ____ moles of molecules of H2.
     
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