Chem 1 thermochemistry problem? Am I doing this right?

land_of_ice
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Homework Statement



When aluminum reacts with chlorine
how much heat in KJ is released on reaction of 5.00 g of Al
for the following reaction:
2AL (s) + 3 CL2(g) ----->2AlCl3 (s)
delta h = -1408.4



Homework Equations





The Attempt at a Solution



Is it right if you start multiplying the delta H by the number of grams of Al , and by doing that by first converting grams of Al to moles? It's hard to tell you if you would divide by 2 at all? 2Al has something to do with it maybe?
 
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Think about it this way - you are given amount of heat evolving per 2 moles of Al reacting.
 

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