Would there be enough information to answer this question?

Question

My teacher is saying to use Hess' law of formation for this question but i still dont see how it will work, if anyone knows how to do this question could you please show me how to do it: 

 

A space shuttle uses more than one type of rocket fuel. The two solid rocket boosters use a fuel mixture of aluminum and ammonium perchlorate that reacts according to the equation


3Al(s) + 3NH4ClO4(s) --> Al2O3(s) + AlCl3(s) + 3NO(g) + 6H2O(g)

solid fuel


In the three main shuttle engines, a mixture of hydrogen and oxygen form a second fuel. The hydrogen and oxygen are carried as compressed liquids in a large tank adjoining the shuttle and react to produce energy according to the reaction

H2(g) + 1/2 O2(g) → H2O(g)

Relevant Heats of Formation

Hfo of NH4ClO4(s)= -290 kJ/mol

Hfo of AlCl3(s)= -700 kJ/mol


1) Calculate the Energy released for each fuel (kJ).

2) Calculate the Energy to mass released for each fuel (kJ/g)

Answer 1

As I stated in my previous answer, there is NOT sufficient information contained in the question as written.  The solid fuels are Al(s) and NH4ClO4(s) and the reaction involves oxidation of Al by the NH4ClO4. There are 3 other products of the reaction in addition to AlCl3, and ANY calculation of heats of reaction MUST take into account these products as well. There simply is no information given in the question that allows one to incorporate these products. Thus, IMHO, there is not sufficient information presented to provide an accurate answer to the question posed.