Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Questions about pH

  1. Jun 13, 2013 #1
    Hello, I've measured the pH of a med containing sodium citrate, potassium citrate and citric acid, why was is slightly acid if sodium citrate is basic ?
    How can I measure the pH of a non acquous solution using litmus paper ?
    Does some compund is, for example, basic when solid and became acid when put in water ?

  2. jcsd
  3. Jun 13, 2013 #2


    User Avatar

    Staff: Mentor

    If it contains citric acid, it can be acidic.

    Technically you can't - pH is a property of aqueous solution.

    Generally speaking solid is usually neither basic nor acidic - it becomes basic or acidic when it dissolves/reacts with water.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Questions about pH
  1. PH question (Replies: 3)

  2. Question on pH scales (Replies: 6)