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March 29, 2017

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Methane gas (carbon tetrahydride) reacts with oxygen by combustion: CH4 + 2O2 -> CO2 + 2H2O

a.)How many moles of methane are needed to produce 3.5*10-4 moles of carbon dioxide?

b.)How many moles of oxygen are needed to react form the 3.5*10-4 moles of carbon dioxide?

c.)How many atoms of oxygen would there be in your answer to question #3b?

  • Chemistry - ,

    CH4 + 2O2 ==> CO2 + 2H2O
    a.
    There is 1 mol CO2 produced for every mols CH4 used. Therefore you will need 3.5ER-4 mols CH4 to produce 3.5E-4 mols CO2.

    b.
    There is a flaw in how the question is state; what is the question? If it is how many mols O2 needed to react with the 3.5E-4 mols CH4 the answer is twice that number.

    c. Since oxygen is a diatomic molecule (O2) the number of molecules O2 will be 6.02E23 x 3.5E-4 and the number of atoms will be double that.

  • Chemistry - ,

    Thank you for your help!

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