1. sami4021's Avatar
    I know this is really random but they dont have an off topic thing so I had to post this. And i have a lab due tomorrow.

    Here is the problem: How can indicators be used to gain information regarding the pH of aqueous solutions?

    I need a good conclusion on this one. If anyone will help I will love you forever. Thanks
    2009-04-24 02:44 AM
  2. Nemir's Avatar
    Color change of a litmus paper can provide different results. One color for acidic, one color for basic, and stays the same color for a pH of 7 (neutral).

    Chemical solutions can be used as well ie: phenolphthalein and thymolphthalein..

    Bases turn litmus paper blue.
    Acids turn litmus paper red.
    Phenolphthalein turns a base red.
    Phenolphthalein is clear in an acid.
    Thymolphthalein turns an acid red.
    Thymolphthalein is clear in a base.
    Last edited by Nemir; 2009-04-24 at 03:41 AM.
    2009-04-24 03:34 AM
  3. sami4021's Avatar
    I need a conclusion to this please.

    Thank You So much man!!!!!

    Last edited by sami4021; 2009-04-25 at 02:37 AM. Reason: Automerged Doublepost
    2009-04-25 02:37 AM
  4. bteamer's Avatar
    Getting schoolwork help on an iPhone modding site. FTW.
    LOL! DOesnt everyone know that only real women know how to handle a stick?
    As long as Miguel can blow...he's straight.
    I dread that first dusting of the white stuff.
    ready for a romp buddy? ohhhhhhhhhhhhhhhhh
    2009-04-25 05:57 PM
  5. sami4021's Avatar
    yea. People are smart. Im just not good at chemistry. Still need a conclusion. Thanks
    2009-04-26 12:45 AM