Zinc metal reacts with hydrochloric acid according to the balanced equation: Zn(s) + 2
Chapter 6, Problem 75(choose chapter or problem)
Zinc metal reacts with hydrochloric acid according to the balanced equation: Zn(s) + 2 HCl(aq) h ZnCl2(aq) + H2(g) When 0.103 g of Zn( s ) is combined with enough HCl to make 50.0 mL of solution in a coffee-cup calorimeter, all of the zinc reacts, raising the temperature of the solution from 22.5 C to 23.7 C. Find Hrxn 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.) 76
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