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    laurie48's Avatar
    laurie48 Posts: 3, Reputation: 1
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    #1

    Dec 3, 2011, 07:00 PM
    algebra moles
    Can you please show me how to find the number of moles of oxygen that are needed to form 6 mol of Fe203? I got the balanced chemical equation for Fe203. I think it is right 4Fe 302------2Fe203 so there is 4 moles of iron, 3 moles of oxygen makes 2 moles of iron oxide. But how do I get six moles? Will you show work so I understand? Thank-You, I am trying to help my daughter. Laurie
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Dec 5, 2011, 12:11 AM
    You simply multiply all the numbers in the equation :) Like this:



    Multiply everything by 3:



    Does that make things easier? :)
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