Zinc metal reacts with hydrochloric acid according to this balanced equation. Zn(s)+2HCl(aq)ZnCl 2 (aq)+H 2 (g) \rm Zn(s) + 2HCl(aq) \rightarrow...

Zinc metal reacts with hydrochloric acid according to this balanced equation.Zn(s)+2HCl(aq)→ZnCl 2 (aq)+H 2 (g) rm Zn(s) + 2HCl(aq) rightarrow ZnCl_2(aq) + H_2(g) When 0.124g g of Zn(s) rm Zn(s) is combined with enough HCl {rm HCl} to make 50.3mL mL of solution in a coffee-cup calorimeter, all of the zinc reacts, raising the temperature of the solution from 21.8 ∘ C ^circ C to 24.7 ∘ C ^circ C. Find ΔH rxn Delta {kern 1pt} H_{{rm{rxn}}} for this reaction as written. (Use 1.0 g/mL {rm{g}}/{{rm{mL}}} for the density of the solution and 4.18 J/g⋅ ∘ C {rm{J}}/{{rm{g}} cdot {rm{^circ C}}} as the specific heat capacity.)