Quantcast

Got Homework?

Connect with other students for help. It's a free community.

  • across
    MIT Grad Student
    Online now
  • laura*
    Helped 1,000 students
    Online now
  • Hero
    College Math Guru
    Online now

Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

ashna

calculate the no. of moles : (a) 392 g of H2SO4. (b) 44.8 L of CO2. (c) 9 g Al. (d) 25 g CaCo3.

  • one year ago
  • one year ago

  • This Question is Closed
  1. ashna
    Best Response
    You've already chosen the best response.
    Medals 1

    @waterineyes

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

    Can you try it once??

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

    let me c

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

    Find molecular mass of H2SO4 then use molar mass concept..

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

    no of moles in 392 g of H2SO4 = x

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

    am not getting !

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

    you better teach !

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

    See: Find molecular mass of H2SO4..

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

    98

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

    we got that in the first problem :)

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

    1 mole = 98 g Right using molar mass..

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

    okay

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

    then ?

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

    98 g = 1 mole Find it for 392 g..

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

    392 * 1 / 98 = 4 moles correct ?

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

    98*4 = 392 I think..

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

    Yep you are right..

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

    :)

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

    c and d are same so lets leave it

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

    i'll do it on my own :)

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

    For b: 22.4 L = 1 mole Find it for 44.8 L.

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

    how to do b ?

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

    1 * 44.8 /22.4 = 2 moles

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

    Now do here all the three left and I am going to have bath.. While teaching you I forgot to take bath today.. Yes 2 moles is right @ashna Now try other two till then I am having bath..

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

    okay teacher :P

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

    I am here only.. So I will check them when I will come.. So don't worry...

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

    thank you teacher :)

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

    |dw:1345185497775:dw|

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

    am done :D

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

    ll cum in the evening .. thanks for the help :)

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

    or in the afternoon :D

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

    Medal for c and d part.. You have calculated them very correctly..

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

    thank yu :)

    • one year ago
    • Attachments:

See more questions >>>

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.