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October 30, 2014

Homework Help: Chemistry

Posted by Bradley on Friday, July 1, 2011 at 3:20am.

If 18.80 grams of hydrochloric acid are reacted with a large amount of aluminum metal, what volume of hydrogen gas would be produced at STP? (Hint: start by writing a balanced equation for the reaction.)

3HCl + Al -> 3H + AlCl3
18.80g
moles= grams/mw
18.80/109.5
0.1716894977169

I do not know if I have correctly balanced the equation, and I think I need to use PV=NRT somewhere, but I'm not sure how to get there.

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