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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: Complicated on September 24, 2006, 04:14:29 PM

Title: Stoichiometry Help Needed
Post by: Complicated on September 24, 2006, 04:14:29 PM

I forgot how to do this question:

 _Fe(OH)2 + _O2 + _H2O --> _Fe(OH)3
If 1 mole of O2 oxidizes Fe(OH)2 according to the reaction represented above, how many moles of Fe(OH)3 can be formed?
(A) 2 (B) 3 (C) 4
(D) 5 (E) 6

Could anyone just show me the steps on how to do this problem? Give me hints? Anything?

Title: Re: Stoichiometry Help Needed
Post by: Mitch on September 24, 2006, 04:25:03 PM

You need to balance it first.

Title: Re: Stoichiometry Help Needed
Post by: Borek on September 24, 2006, 04:50:44 PM

http://www.chembuddy.com/?left=balancing-stoichiometry&right=stoichiometric-calculations

Title: Re: Stoichiometry Help Needed
Post by: Complicated on September 24, 2006, 05:21:04 PM

OK, I balanced it as:

4Fe(OH)2 + O2 + 2H2O --> 4Fe(OH)3

I get it.

Thanks, I kind of blanked out there...  :-X