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Homework Help: Stoichiometry-hellp please

  1. Apr 7, 2009 #1
    stoichiometry--hellp please!!

    1. How much Iron should be combined with sulfur to produce 56.8 grams of iron (II) Sulfide


    3. ok.. so this is what i have ..
    Fe + S ----> FeS ----correct??

    Then. molar ratios are 1-1-1..
    The molar ration between Fe and FeS is 1:1
    = 87.9

    56.8 /87.9 *1*55.8 = 36.1 g FeS.. is this correct??? the wording in the equation is different then all of the other equations on my worksheet soo im not sure if this is right.
  2. jcsd
  3. Apr 7, 2009 #2


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    Re: stoichiometry--hellp please!!

    Your type-setting or your text formatting is not good. You want to show as:
    (56.8 /87.9) *1*55.8 = 36.1 g Fe
    That then would be good.

    NOTE: why the forum does not allow text strike-out? I meant to show previous post's answer for FeS which was wrong, and then make a 'scratch' mark through the S; because the 36.1 grams is for the IRON.
    Last edited: Apr 7, 2009
  4. Apr 8, 2009 #3
    Re: stoichiometry--hellp please!!

    ohhh yeahh . I messed the label up.... oops.. thanks for catching that!!
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