Related questions


Suppose you are investigating the reaction: M(s) + 2 HCl(aq) → MCl2(aq) + H2(g). You weigh out a 0.256 gram piece of metal and combine it with 63.7 mL of 1.00 M HCl in a coffee-cup calorimeter. If the molar mass of the metal is 49.57 g/mol, and you measure that the reaction absorbed 197 J of heat, what is the enthalpy of this reaction in kJ per mole of limiting reactant?