🤓 Based on our data, we think this question is relevant for Professor Butts' class at SEMINOLESTATE.
Zinc metal reacts with hydrochloric acid according to the following balanced equation.
Zn (s) + 2HCl (aq) → ZnCl2 (aq) + H2 (g)
When 0.116 g of Zn(s) is combined with enough HCl to make 52.3 mL of solution in a coffee-cup calorimeter, all of the zinc reacts, raising the temperature of the solution from 21.5 °C to 24.7 °C.
Find ΔHrxn in kJ/mol for this reaction as written. (Use 1.0 g/mL for the density of the solution and 4.18 J/g • °C as the specific heat capacity.)