chemistry

One reaction of iron with hydrochloric acid is represented by the following thermochemical equation.
Fe(s) + 2HCl(aq) → FeCl2(aq) + H2(g); ΔH°= –87.9 kJ
How much heat is liberated at constant pressure if 0.416 g of iron reacts with 42.0 mL of 0.457 M HCl?

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asked by Jake
  1. Determine the limiting reagent. I believe that is Fe but you must confirm that.
    Then 87.9 x (0.416/55.85) = ?? kJ.

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    posted by DrBob222
  2. The answer doesn't fit with the choices given.

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    posted by Julia

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