March 22, 2017

Post a New Question

Posted by 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
moles= grams/mw

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.

  • Chemistry - , Friday, July 1, 2011 at 5:46pm

    2Al + 6HCl ==> 3H2 + 2AlCl3
    One error you continue to make is to determine mole from the entire equation. moles = grams/molar mass. and NOT grams/n*molar mass.
    Here is a worked example of a stoichiometry problem. Just follow the steps. That will show you how to do moles, too.

Answer This Question

First Name:
School Subject:

Related Questions

More Related Questions

Post a New Question