# Chemistry

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The following thermochemical equation is for the reaction of iron(s) with chlorine(g) to form iron(III) chloride.

2Fe(s) + 3Cl2(g) 2FeCl3(s) H = -799 kJ
How many grams of Fe(s) would have to react to produce 107 kJ of energy?

I am not sure how to start this.

• Chemistry -

You get 799 kJ of energy with 2*55.85g Fe(2 moles Fe). So how many grams would you need to obtain just 107 kJ?

• Chemistry -

Yea I could have used the help on this question instead of answering a question with a question. I needed to know the set up, clearly I'm not entirely sure. I see you do this on a few posts Dr. Bob

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