Ammonium perchlorate (NH_4ClO_4) is the solid rocket fuel used by the U.S. Space

Question

Ammonium perchlorate (NH_4ClO_4) is the solid rocket fuel used by the U.S. Space Shuttle. It reacts with itself to produce nitrogen gas (Na_2) , chlorine gas Cl_2, oxygen gas (O_2) , water ,(H_2O) and a great deal of energy. What mass of nitrogen gas is produced by the reaction of 3.07g of ammonium perchlorate? Be sure your answer has the correct number of significant digits.

Explanation / Answer

The reaction is: 2NH4ClO4 ==> N2 + Cl2 + 2O2 + 4H2O 3.07 g NH4ClO4 x (1 mole NH4ClO4 / 117.5 g NH4ClO4) = 0.0261 moles NH4ClO4 The balanced equation says that 2 moles of NH4ClO4 will produce 1 mole of N2 gas. 0.0261 moles NH4ClO4 x (1 mole N2 / 2 moles NH4ClO4) = 0.013 moles N2 0.013 moles N2 x (28.0 g N2 / 1 mole N2) = 0.366 g N2

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