Results 1 to 10 of 10

Thread: AP Chem help

  1. #1
    Diehard Kori's Avatar

    Badge

    Join Date
    Nov 2012
    Location
    Labia
    Posts
    1,111
    Points
    516
         User Info     Contact     Gamer ID
    Join Date
    Nov 2012
    Location
    Labia
    Posts
    1,111
    Points
    516
    Gamer IDs

    Gamertag: SIG Zyu PSN ID: Phru

    Default AP Chem help

    i've been stuck on this question for forever.

    I don't want the answer to this but i have a solution of methylamine and i need the pOH of the solution.

    When i get x is that is the [OH-]
    Then when i put it into

    -log(x) do i have pH or pOH.

    0 Not allowed! Not allowed!
    Quote Originally Posted by volcom89 View Post
    If your all getting is "Palmela Handerson" then you seriously need to go out and talk to real girls.. At least try to get some real live Poon Tang


  2. #2
    Wii Coder
    ChumLee's Avatar

    Badge

    Join Date
    Apr 2011
    Location
    'Murica
    Posts
    5,390
    Points
    7,613
         User Info     Contact     Gamer ID
    Join Date
    Apr 2011
    Location
    'Murica
    Posts
    5,390
    Points
    7,613
    Gamer IDs

    Gamertag: TERR0Rx9

    Contact info:

    Youtube Channel: http://www.youtube.com/user/HAXZingTERR0R

    Default

    It has been a few months since I have done any of this, but I believe you have the OH- ions here. If you want to reverse the process then 2nd log or 10^x is what you would do with the value from the -log. To get the pH from a pOH, just subtract the pOH from 14.

    Edit: I didn't quite realize what you were asking until I read it over a few times. If you are trying to get the pH from the [OH-], you would up 10^[OH-] and that would give you your pOH and subtract that from 14 for the pH. To find the pOH from the [H3O+], just do the same.

    0 Not allowed! Not allowed!
    Last edited by ChumLee; 04-15-2013 at 02:36 PM.


  3. #3
    Diehard Kori's Avatar

    Badge

    Join Date
    Nov 2012
    Location
    Labia
    Posts
    1,111
    Points
    516
         User Info     Contact     Gamer ID
    Join Date
    Nov 2012
    Location
    Labia
    Posts
    1,111
    Points
    516
    Gamer IDs

    Gamertag: SIG Zyu PSN ID: Phru

    Default

    Quote Originally Posted by ChumLee View Post
    It has been a few months since I have done any of this, but I believe you have the OH- ions here. If you want to reverse the process then 2nd log or 10^x is what you would do with the value from the -log. To get the pH from a pOH, just subtract the pOH from 14.
    so an example

    CH3NH2 + H20 --> CH3NH3+ + OH-

    If i received x.
    Would that be pOH-

    0 Not allowed! Not allowed!
    Quote Originally Posted by volcom89 View Post
    If your all getting is "Palmela Handerson" then you seriously need to go out and talk to real girls.. At least try to get some real live Poon Tang


  4. #4
    Wii Coder
    ChumLee's Avatar

    Badge

    Join Date
    Apr 2011
    Location
    'Murica
    Posts
    5,390
    Points
    7,613
         User Info     Contact     Gamer ID
    Join Date
    Apr 2011
    Location
    'Murica
    Posts
    5,390
    Points
    7,613
    Gamer IDs

    Gamertag: TERR0Rx9

    Contact info:

    Youtube Channel: http://www.youtube.com/user/HAXZingTERR0R

    Default

    In 10^x, x would be the concentration of Hydronium ions or Hydroxide ions, then you would get either the pH or pOH by pressing enter.

    0 Not allowed! Not allowed!


  5. #5
    Diehard Kori's Avatar

    Badge

    Join Date
    Nov 2012
    Location
    Labia
    Posts
    1,111
    Points
    516
         User Info     Contact     Gamer ID
    Join Date
    Nov 2012
    Location
    Labia
    Posts
    1,111
    Points
    516
    Gamer IDs

    Gamertag: SIG Zyu PSN ID: Phru

    Default

    Quote Originally Posted by ChumLee View Post
    In 10^x, x would be the concentration of Hydronium ions or Hydroxide ions, then you would get either the pH or pOH by pressing enter.
    yes i get that.

    but in the case above would i get the pOH- or the pH

    0 Not allowed! Not allowed!
    Quote Originally Posted by volcom89 View Post
    If your all getting is "Palmela Handerson" then you seriously need to go out and talk to real girls.. At least try to get some real live Poon Tang


  6. #6
    Wii Coder
    ChumLee's Avatar

    Badge

    Join Date
    Apr 2011
    Location
    'Murica
    Posts
    5,390
    Points
    7,613
         User Info     Contact     Gamer ID
    Join Date
    Apr 2011
    Location
    'Murica
    Posts
    5,390
    Points
    7,613
    Gamer IDs

    Gamertag: TERR0Rx9

    Contact info:

    Youtube Channel: http://www.youtube.com/user/HAXZingTERR0R

    Default

    Quote Originally Posted by Kori View Post
    CH3NH2 + H20 --> CH3NH3+ + OH-
    Quote Originally Posted by Kori View Post
    yes i get that.

    but in the case above would i get the pOH- or the pH
    Well you can get both, but since the product contains a Hydroxide ion, I would start with getting the pOH. It all depends on the teacher if they want you to keep going to get the pH or not.

    0 Not allowed! Not allowed!


  7. #7
    Diehard Kori's Avatar

    Badge

    Join Date
    Nov 2012
    Location
    Labia
    Posts
    1,111
    Points
    516
         User Info     Contact     Gamer ID
    Join Date
    Nov 2012
    Location
    Labia
    Posts
    1,111
    Points
    516
    Gamer IDs

    Gamertag: SIG Zyu PSN ID: Phru

    Default

    Quote Originally Posted by ChumLee View Post
    Well you can get both, but since the product contains a Hydroxide ion, I would start with getting the pOH. It all depends on the teacher if they want you to keep going to get the pH or not.
    you are confusing me.

    I need to find the pOH of the solution above.

    0 Not allowed! Not allowed!
    Quote Originally Posted by volcom89 View Post
    If your all getting is "Palmela Handerson" then you seriously need to go out and talk to real girls.. At least try to get some real live Poon Tang


  8. #8
    Wii Coder
    ChumLee's Avatar

    Badge

    Join Date
    Apr 2011
    Location
    'Murica
    Posts
    5,390
    Points
    7,613
         User Info     Contact     Gamer ID
    Join Date
    Apr 2011
    Location
    'Murica
    Posts
    5,390
    Points
    7,613
    Gamer IDs

    Gamertag: TERR0Rx9

    Contact info:

    Youtube Channel: http://www.youtube.com/user/HAXZingTERR0R

    Default

    Yeahhhhh...I'm no help there. It's been a while since I've done this stuff. Sorry. :P

    0 Not allowed! Not allowed!


  9. #9
    Diehard Kori's Avatar

    Badge

    Join Date
    Nov 2012
    Location
    Labia
    Posts
    1,111
    Points
    516
         User Info     Contact     Gamer ID
    Join Date
    Nov 2012
    Location
    Labia
    Posts
    1,111
    Points
    516
    Gamer IDs

    Gamertag: SIG Zyu PSN ID: Phru

    Default

    Quote Originally Posted by ChumLee View Post
    Yeahhhhh...I'm no help there. It's been a while since I've done this stuff. Sorry. :P
    ok...

    0 Not allowed! Not allowed!
    Quote Originally Posted by volcom89 View Post
    If your all getting is "Palmela Handerson" then you seriously need to go out and talk to real girls.. At least try to get some real live Poon Tang


  10. #10
    Elite Slowduck's Avatar
    Join Date
    Jun 2011
    Location
    All the places
    Posts
    10,204
    Points
    9,472
         User Info     Contact     Gamer ID
    Join Date
    Jun 2011
    Location
    All the places
    Posts
    10,204
    Points
    9,472

    Default

    Pm grey. He's a genius.

    0 Not allowed! Not allowed!


Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
All times are GMT -10. The time now is 07:03 AM.
Powered by vBulletin®
Copyright © 2017 vBulletin Solutions, Inc. All rights reserved.