Stoichiometry

How much iron (II) sulfide would be needed to prepare 15L of hydrogen sulfide? My balanced equation is 2HCl + FeS --> H2S + FeCl2. I have converted 15L H2S to mols, but I have no idea where to go from here.

  1. 👍 0
  2. 👎 0
  3. 👁 92
asked by Jacob
  1. You're half way there IF the H2S is at STP. If not then an adjustment needs to be made.
    But let me start over to make sure we don't miss something. Here are the general steps (assuming STP conditions for the H2S).

    Step 1. Write the balanced equation. You have done that.
    2HCl + FeS ==> H2S + FeCl2

    Step 2. Convert what you have into mols. You have done that.
    15L H2S x (1 mol H2S/34 g H2S) = 0.441 mol H2S.

    Step 3. Using the coefficients in the balanced equation, convert mols of what you have (in this case H2S) to mols of what you want (in this case mols FeS).
    mols FeS = 0.441 mols H2S x (1 mol FeS/1 mol H2S) = 0.441 mol x 1/1 = 0.441 mol FeS

    Step 4. Now convert mols FeS to grams.
    grams = mols FeS x molar mass FeS.

    This procedure will work most stoichiometry problems.
    Check my arithmetic. I estimated the molar mass of H2S so you need to redo that part and follow through.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. chemistry

    hydrogen sulfide may be prepared in the laboratory by the action of hydrochloric acid on iron (2) sulfide. How much iron (2) sulfide would be needed to prepare 15L of hydrogen sulfide?

    asked by Anonymous on February 5, 2009
  2. Chemistry

    Hydrogen sulfide burns in the presense of oxygen producing sulfiar dioxide and water I got HS + O2 >>> SO2 + H2O Its not balanced yet, but can you check if i wrote the equation right? Does the hydrogen sulfide need charges added

    asked by Chopsticks on February 4, 2009
  3. chemistry

    hydrochloric acid is added to 50 g of iron (III) sulfide. what weight of hydrogen sulfide is produced? FeS+2HNO3+Mg(NO3)2+H2

    asked by kayla on May 18, 2010
  4. Chemistry

    What happens when hydrogen sulfide is heated through an iron sulfide solution?

    asked by Emem Thompson on November 28, 2011
  5. URGENT! chemistry- percentage yield

    heating an ore of antimony sulfide in the presence of iron gives th element antimony and iron(2) sulfide. when 15.0 antimony sulfide reacts with an excess of iron, 9.84 g antimony is produced. what is the percent yield of this

    asked by sheynah on March 16, 2011
  6. chemistry (I have a test tomorrow)

    4 Ag + 2 H2S + O2 = 2 Ag2S + 2 H2O a) What mass if silver sulfide is formed from the reaction of 0.120g of silver? b) What mass of hydrogen sulfide is needed in the same process? So I understand a, and I found the answer to be

    asked by Laura on April 12, 2017
  7. chemistry

    How many moles of iron(II)sulfide are produced when 4.38g of Fe reacts with 2.88g of S to produce iron(II)sulfide?

    asked by megan on March 7, 2008
  8. Chemistry

    hydrogen sulfide reacts with sulphur dioxide to give water and S, balance the equation. if hydrogen sulfide contains 125g, how much S is produced?

    asked by Love on July 13, 2016
  9. Chemistry

    hydrogen sulfide reacts with sulphur dioxide to give water and S, balance the equation. if hydrogen sulfide contains 125g, how much S is produced?

    asked by Love on July 13, 2016
  10. Chemistry

    If 13.75 g of iron (III) nitrate react with an excess of ammonium sulfide, how many grams of iron (III) sulfide are produced? Report your answer to 2 sig figs

    asked by Stacey on July 8, 2012

More Similar Questions