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Zinc metal reacts with hydrochloric acid according to the following balanced equation. Zn ( s ) + 2 HCl ( aq ) - > ZnCl

Zinc metal reacts with hydrochloric acid according to the following balanced equation.
Zn(s)+2HCl(aq)->ZnCl2(aq)+H2(g)
When 0.111 g of Zn(s) is combined with enough HCl to make 53.2 mL of solution in a coffee-cup calorimeter, all of the zinc reacts, raising the temperature of the solution from 21.6C to 24.7C. Find \Delta rH for this reaction as written. (Use 1.0 gmL1 for the density of the solution and 4.184 Jg1C1 as the specific heat capacity.)
Express your answer in kilojoules per mole to two significant figures.

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