a 25.00 ml sample of 2.000 m koh is mixed with 50.00 ml 2.000 m hcl in a coffee-cup calorimeter. which reactant is in excess? the enthalpy of the reaction is -55.8 kj. both solutions are at 22.31oc prior to mixing and reacting. what is the final temperature of the reaction mixture? assume no heat is lost from the calorimeter to the surroundings, the density of all solutions is 1.00 g/ml, and the volumes are additive.
