Question

Determine the enthalpy for this reaction: al(oh)3(s)+3hcl(g)→alcl3(s)+3h2o(l) express your answer in kilojoules per mole to one decimal place.

Answer 1

Substance of ΔHf∘ (kJ/mol) are the following:HCl(g) −92.0 Al(OH)3(s) −1277.0 H2O(l) −285.8 AlCl3(s) −705.6 H2O(g) −241.8So..
products - reactants: (all units in kJ) (−705.6) + (3 x −285.8) - (−1277.0) - (3 x −92.0) = - 10.0 kJ/mol Al (OH) 3 or mol AlCl3