36. Solving a chemistry problem

36. Solving a chemistry problem

2. Based on the following data, calculate the heat of formation of anhydrous Al2Cl6
2Al 6HCl*aq↔ Al2Cl6*aq 3H2(g) ΔH=-10003.2 kJ
H2 Cl2↔2HCl(g) ΔH=-184.1 kJ
HCl aq↔HCl*aq ΔH=-72.45 kJ
Al2Cl6(g) aq↔ Al2Cl6*aq ΔH=-643.1 kJ

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