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Iron metal reacts with hydrochloric acid according to the following balanced equation. Fe(s)+2HCl(aq)FeCl2(aq)+H2(g) When 0.223 g of Fe(s) is combined with enough HCl to make

Iron metal reacts with hydrochloric acid according to the following balanced equation.

Fe(s)+2HCl(aq)FeCl2(aq)+H2(g)

When 0.223 g of Fe(s) is combined with enough HCl to make 50.5 mL of solution in a coffee-cup calorimeter, all of the iron reacts, raising the temperature of the solution from 22.5 C to 24.1 C .

Find 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.)

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