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Homework Help: Quick Question not sure if im understanding what this question is asking

  1. Oct 6, 2006 #1
    Limiting Reactant Question..A Little help needed

    Consider equation:
    Ga2S3(g) + 6H2O (l) ---- 2Ga(OH)2 (s) + 3H2S (g)

    Assume that 35.0g of Ga2S3 and 13.0g H2O are allowed to react...
    (a) determine limiting reagent! --- FIGURED THIS OUT (it's H2O)
    (b) calculate mass of hydrogen sulfide (do i use limiting reagent?)
    (c) calculate mass of gallium hydroxide (do i use limiting reagent here too?)

    just quick yes and no answers will help me out...thanks!:smile:
    Last edited: Oct 6, 2006
  2. jcsd
  3. Oct 6, 2006 #2
    hahha i need this in a few hours...
  4. Oct 6, 2006 #3
    ^^title of thread changed
  5. Oct 6, 2006 #4
    Yeap, the limiting reagent is H20, and all calculations onwards will base on the limiting reagent.
  6. Oct 6, 2006 #5
    hey thanks a lot God bless! sorry for the multiple posts on this thread haha
  7. Oct 6, 2006 #6
    You'd use the limiting because thats the max that could be possibly produced. Its like saying you filled a 1000mL graudated cylinder with 5000mL if you used the excess reactant
  8. Oct 6, 2006 #7
    ahhh makes sense...good look
  9. Oct 6, 2006 #8
    Haha maybe ill try...:redface:
  10. Oct 7, 2006 #9


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    Staff: Mentor

    I wonder how you could figure anything if the reaction is not balanced :wink:
  11. Oct 7, 2006 #10
  12. Oct 7, 2006 #11
    You do realize hes talking to you, right? :confused: :confused:
  13. Oct 7, 2006 #12
  14. Oct 8, 2006 #13
    Your equation isnt balanced....:grumpy:
  15. Oct 8, 2006 #14
    lol thats why i said good look :smile:
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