1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Mass of Reactants and Products

  1. Oct 4, 2008 #1
    1. The problem statement, all variables and given/known data
    Calculate the mass in grams of iodine(I2) that will react completely with 23g of aluminum (Al) to form aluminum iodide (AlI3).


    2. Relevant equations



    3. The attempt at a solution

    don't even know where to start

    mol mol avogrado mol
     
  2. jcsd
  3. Oct 4, 2008 #2

    symbolipoint

    User Avatar
    Homework Helper
    Education Advisor
    Gold Member

    Write the reaction to start. Next, use the information in the PROPERLY BALANCED reaction to find mole ratios. Do the rest.
     
  4. Oct 4, 2008 #3
    ok I've had this for a day:

    3I2+2Al---->2AlI3


    761.4g
    3 mol

    53.96g
    2 mol

    815.36g
    2 mol

    now what?
     
  5. Oct 4, 2008 #4

    symbolipoint

    User Avatar
    Homework Helper
    Education Advisor
    Gold Member

    Nice Reaction Notation. Now, pay attention to the MOLE RATIOS indicated in that reaction. What is the formula weight for Aluminum? You are starting with 23 grams of Aluminum.
    How many moles of Aluminum is this?
    How many moles of Iodine are needed?
    How many grams of Iodine is this?
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Mass of Reactants and Products
  1. Products or Reactants ? (Replies: 33)

Loading...