Question

 

NH4CIO4 is the solid rocket fuel used by the U.S Space Shuttle. It reacts with itself to produce nitrogen gas (N2), chlorine gas (Cl2), oxygen gas (O2), water, and a great deal of energy. What is the maximum mass(in grams) of oxygen gas that can be produced by the reaction of 7.28g of NH4ClO4?

Answer 1

Solution :-

Balanced reaction equation

2 NH4ClO4 ------ > N2 + Cl2 + 2 O2 + 4 H2O

Now lets first calculate the moles of the NH4ClO4

moles= mass / molar mass

moles of NH4ClO4 = 7.28 g / 117.4891 g per mol

                           = 0.06196 mol NH4ClO4

now using the mole ratio lets calculate the moles of the O2

mole ratio of the NH4ClO4 to O2 is 2 : 2

0.06196 mol NH4ClO4 * 2 mol O2 / 2mo, NH4ClO4 = 0.06196 mol O2

Now lets convert the moles of O2 to its mass '

mass of O2 = moles * molar mass

                  = 0.06196 mol O2 * 32.0 g per mol

                = 1.98 g O2

So the maximum mass of the oxygen gas (O2) that can be produced = 1.98 g