Consider these reactions, where M represents a generic metal.
2M(s)+6HCl(aq)⟶2MCl3(aq)+3H2(g)Δ𝐻1=−740.0 kJ
HCl(g)⟶HCl(aq) Δ𝐻2=−74.8 kJ
H2(g)+Cl2(g)⟶2HCl(g) Δ𝐻3=−1845.0 kJ
MCl3(s)⟶MCl3(aq) Δ𝐻4=−254.0 kJ
Use the given information to determine the enthalpy of the reaction
2M(s)+3Cl2(g)⟶2MCl3(s)