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 Group Title

molarity and molality !

  • one year ago
  • one year ago

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

    See there your question is given like: 2g of a Substance is added to water... Can you tell me what is solute here and what is the solvent here ??

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

    solvent is water and solute is that 2g substance .. correct ?

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

    Yes..

    • one year ago
  4. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    For finding molarity you need number of moles solute.. How will you find number of moles of solute because it is given in 2 grams.. ??

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

    i dont know !

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

    For that there is a formula you will use that..

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

    ah .. that previous one ?

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

    derived from molarity .. ?

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

    \[Number \; Of \; Moles = \frac{Grams \; Present}{Molecular \; Mass \; Of \; that \; Substance}\]

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

    No no that one.. This one I have written above now..

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

    how many formulas are there in this chapter ?

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

    Now let us try to implement this formula on a question so that you can understand it properly. There are as many formulas as there are hairs on your head.. Ha ha ha..

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

    what if am bald ?? :P

    • one year ago
  14. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Wait for one second my mummy is calling me.. Have a look on that formula and try to memorize it and understand it as well..

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

    okay !

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

    Then there are as many formulas as there are hairs on my head And I don't like to be bald..

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

    am not bald either .. i were just kidding :)

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

    |dw:1345436660852:dw|

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

    Mention me when you will come.. I am in Mathematics Section..

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

    yeah back !

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

    @waterineyes

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

    I have to go ashna...

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

    So let us hurry up I can explain you this thing..

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

    okay

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

    See you are given with question like this: 2g of a NaCl is dissolved in 4 L of water.. Find the Molarity..

    • one year ago
  26. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Hurry up find the molecular mass of NaCl first..

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

    Because you have to find Number of Moles first..

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

    23+35.5 ?

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

    Yep...

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

    so it is 58.5..

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

    58.5

    • one year ago
  32. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Now 2g you are given with.. Can you find number of moles now ??

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

    2 / 58.5

    • one year ago
  34. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Yep solve it hurry up..

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

    0.034...

    • one year ago
  36. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Yep..

    • one year ago
  37. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Now can you find molarity by using its formula ??

    • one year ago
  38. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    For that you need volume of solution too..

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

    0.034 / 4

    • one year ago
  40. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    For that you need volume of solution too..

    • one year ago
  41. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    No..

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

    then ?

    • one year ago
  43. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    I don't know.. Ha ha ha..

    • one year ago
  44. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Yes we can ashna..

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

    okay .. you leave then !

    • one year ago
  46. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    For that you should know the density of water.. It will be given to you.. I think approximately density of water is 1.. So: \[Density = \frac{Mass}{Volume}\]

    • one year ago
  47. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Oh god what I am doing.. We have to find volume of NaCl not water..

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

    you better leave water ..

    • one year ago
  49. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Yeah but I will explain you after coming for sure.. May be till then others may help you.. Or I think I have written the question wrong...

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

    hm..

    • one year ago
  51. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    But the main concept is you got how to find number of moles of solute when it is not given.. Right ??

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

    yes

    • one year ago
  53. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    It did increase some knowledge of yours. Okay now I have to leave.. There is work for me from my neighborers.. So I have to go now..

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

    hm.. bye

    • one year ago
  55. waterineyes Group Title
    Best Response
    You've already chosen the best response.
    Medals 1

    Bye take care as well..

    • 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.