Quantcast

A community for students. Sign up today!

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Jonask

  • one year ago

Calculate the mass of iron metal (in grams) that can be prepared from 150 grams of aluminum and 250 grams of iron(III) oxide.

  • This Question is Closed
  1. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    \[ {F}e_2O_3+2Al\implies Al_2O_3+2Fe\]

  2. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    2Al is the limiting reagent right

  3. Outkast3r09
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    did you check to see?

  4. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    novice in chem,well i just looked at the atom it has 2 moles and Fe2O3 has 1 so yeah

  5. Outkast3r09
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    to figure out which is limiting you want to to take Grams of reactant ->mols of reactant->moles of product with both... which ever can make the least amount of moles of product is your limiting reactant

  6. Outkast3r09
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    or limiting aent

  7. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Fe2O3 M=55 m=250 n=4.5 Al M=26 m=150 n=5.7

  8. Outkast3r09
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    alright and then there is 2 aluminum molecules per 2 iron

  9. Outkast3r09
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so you cna make 9.16 moles of iron with 9.16 moles of aluminum

  10. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    wait 9.6 was error i took wrong mass Al n=5.7

  11. Outkast3r09
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    o wait nvm 5.7 molecules of aluminum can make 5.7 molecules for iron

  12. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    Al:Fe 1:1

  13. Outkast3r09
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    however per each iron oxide molecule you can make 2 iron oxide molecules

  14. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    yes

  15. Outkast3r09
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so multiply 4.5*2 =9 moles of iron.... since you can only make 5.7 moles with the aluminum , Al is your limiting reagent

  16. Outkast3r09
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    now just change 5.7 moles of Fe to grams

  17. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    m=5.7*55=322g

  18. Outkast3r09
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 1

    so that would be your answer

  19. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    so cant we say there 2Al n=5.7 but 2 moles n=2(5.7)

  20. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    answer not correct i think i made a mistake

  21. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    the periodic table i am using says atomic weight =Al M=26g/mol is this the right thing to use as M

  22. Jonask
    • one year ago
    Best Response
    You've already chosen the best response.
    Medals 0

    174.85 s the answer thanks

  23. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Ask a Question
Find more explanations on OpenStudy

Your question is ready. Sign up for free to start getting answers.

spraguer (Moderator)
5 → View Detailed Profile

is replying to Can someone tell me what button the professor is hitting...

23

  • Teamwork 19 Teammate
  • Problem Solving 19 Hero
  • You have blocked this person.
  • ✔ You're a fan Checking fan status...

Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.

This is the testimonial you wrote.
You haven't written a testimonial for Owlfred.