Chemistry

Please be specific. In an experiement 23.4 g of iron sulphide, FeS are added to excess oxygen, and 16.5 of Iron oxide, Fe2O3 are produced. The balanced euation for the reaction is 4FeS =7O2 -- 2Fe2O +2SO2. Calculate the percent yield of iron oxide in the experiment.

  1. 👍 0
  2. 👎 0
  3. 👁 170
asked by Kelsey
  1. Step 1. Calculate the theoretical yield.
    Step 2. Calculate percent yield.
    One reason you may be having trouble is that the equation you have is not balanced.

    You need a little work on the equation.
    4FeS + 7O2 --> 2Fe2O3 + 4SO2

    I will estimate the molar masses; you should do it more exacting than I but this will show you the procedure.

    Convert 23.4 g FeS to moles. moles = grams/molar mass
    23.4/88 = 0.266

    Using the coefficients in the balanced equation, convert moles FeS to moles Fe2O3.
    0.266 moles FeS x (2 moles Fe2O3/4 moles FeS) = 0.266 x (2/4) = 0.266 x (1/2) = 0.133 moles Fe2O3.

    Now convert moles Fe2O3 to grams. g = moles x molar mass
    0.133 x 160 = 21.3 g Fe2O3. This is the theoretical yield

    %yield = (actual/theoretical)*100 =
    (16.5/21.3)*100 = ??%
    Check my work.

    1. 👍 0
    2. 👎 0
    posted by DrBob222

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    In an experiement 23.4 g of iron sulphide are added to excess oxygen and 16.5 grams of iron (III) oxide, Fe2O3 are produced the balanced equation for the reaction is 4FeS + 7O2 -- 2Fe2O3 + 2SO2 Calculate the percent yield of iron

    asked by Kelsey on July 27, 2010
  2. Grade 10 Science

    Why is the name for the ionic bond FeS Iron (II) Sulphide when the charges on iron and sulphur are +2 and -2? Shouldn't the name be Iron (I) Sulphide? Same goes for Copper (II) Sulphide. Please explain!

    asked by Alisha on February 15, 2011
  3. 10th grade Chemistry

    A chemial test to distinguish between iron(Fe) and iron sulphide(FeS)..without using a magnet

    asked by DK on February 11, 2009
  4. To DrBob222

    Now I have to name the compounds below. Please correct any of my mistakes. Thank you very much in return:-) 1. ZrCl4 = Zirconium chloride 2. (NH)4C = Ammonium carbide 3. FeS = Iron Sulphide 4. CaO = Calcium Oxide 5. BeCl2 =

    asked by Sara on April 22, 2010
  5. science

    What chemical test is there to distinguish between a sample of iron(Fe) and a sample of iron sulphide(FeS)

    asked by de kuilen high on February 10, 2009
  1. Chemistry

    8.8 g of iron(II) sulphide reacts completely with excess dilute hydrochloric acid. Calculate the volume of hydrogen sulphide evolved, measured at 18 ยบ C and 729 mmHg pressure.

    asked by Christopher Penner on November 21, 2016
  2. Science

    Heating Iron and Sulphure pruduces Iron Sulphide. What is the consitency/ appearance of Iron Sulphide ? Is it a powder or a solid?

    asked by Carol on September 23, 2009
  3. Chemistry

    How many atoms of iron will react with an excess of sulfur to form 3.098 grams of iron (II) product? Fe + S ---> FeS (2.12x10*25) I would appreciate if an explanation would be given... I need more than just the answer. Thank you!

    asked by Alex on July 5, 2011
  4. Chemistry

    At high temperatures, sulfur combines with iron to form the brown-black iron (II) sulfide: Fe (s) + S (l)--> FeS (s) How do you calculate the mass of FeS formed? Thank you!

    asked by Mary on June 25, 2011
  5. chemistry

    Heating an ore of antimony (Sb2S3) in the presence of iron gives the element antimony and iron(II) sulfide. Sb2S3(s) + 3 Fe(s) 2 Sb(s) + 3 FeS(s) When 10.9 g Sb2S3 reacts with an excess of Fe, 9.84 g Sb is produced. What is the

    asked by clara on March 31, 2010

More Similar Questions