Question

Ammonium perchlorate nh4clo4 is a powerful solid rocket fuel, used in the space shuttle boosters. it decomposes into nitrogen n2 gas, chlorine cl2 gas, oxygen o2 gas and water vapor, releasing a great deal of energy. calculate the moles of ammonium perchlorate needed to produce 0.10mol of chlorine. be sure your answer has a unit symbol, if necessary, and round it to the correct number of significant digits.

Answer 1

                              2NH4ClO4 --------> N2 + Cl2 + 2O2 + 4H2O
from reaction         2 mol                              1 mol
given                     x mol                              0.10 mol

Proportion:
2 mol NH4ClO4 = 1 mol Cl2
x mol  NH4ClO4   0.10 mol Cl2

x= (2*0.10)/1 = 0.20 mol NH4ClO4