The fuel used in booster rockets for the Space Shuttle is a mixture of aluminium and ammonium perchlorate. The reaction equation is as follows:
3Al(s)+3NH4ClO4(s)→Al2O3(s)+AlCl3(s)+3NO(g)+6H2O(g)
Calculate the mass of NH4ClO4 that should be added to this fuel mixture to react completely with every kilogram of Al.