Zinc metal reacts with hydrochloric acid according to the equation:
Zn(s) + 2HCl(aq) –> ZnCl2(aq) + H2(g)
When 0.183 g Zn metal combined with 58.0 mL of hydrochloric acid in a coffee-cup calorimeter, the initial temperature of 22.5 deg C increases to a maximum of 24.2 deg C. Assuming the density of the solution is 1.00 g/mL and its specific heat is 4.184 J/g deg C, calculate the delta H for the reaction per mole of zinc.
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