🤓 Based on our data, we think this question is relevant for Professor MacPhail's class at DUKE.
Consider these reactions, where M represents a generic metal
2M(s) + 6HCl(aq) → 2MCl3(aq) + 3H2(g) H=-748.0 kJ
HCl(g) → HCl(aq) H=-74.8
H2(g) + Cl2(g) → 2HCl(g) H=-1845
MCl3(s) → MCl3(aq) H=-317.0
Using the information above to determine the enthalpy of the following reaction
2M(s) + 3Cl2(g) → 2MCl3(s)