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March 25, 2017

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Solid ammonium nitrate breaks down into nitrogen, water vapor, and oxygen. If there was 300g of the solid and the reaction happened under STP find the total volume of the products. (translating words to eqns., balancing eqns., understanding what STP means) thanks!
P.S. eqns.=equations

  • Chemistry 11th - ,

    2NH4NO3 ==> 2N2 + 4H2O + O2

    STP means standard temperature and pressure.
    Convert 300 g NH4NO3 to moles. moles = grams/molar mass.

    Using the coefficients in the balanced equation, convert moles NH4NO3 to moles N2, then to moles H2O, then to moles O2.

    Finally, convert moles N2, H2O, and O2 to liters. L = moles x 22.4 L/mol at STP. Then add the L to obtain total gas volume.
    Check the equation to make sure it is balanced. Post your work if you get stuck.

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