1. Not finding help here? Sign up for a free 30min tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Ph calculations

  1. Nov 5, 2006 #1
    I know what the formal definition of ph is, and I am comfortable with logarithms, anti-logs, and the laws of exponents. Still, I get confused doing actual calculations and would greatly appreciate your input on the following:
    Suppose something has a ph of 3.5-How do you calculate the hydrogen ion concentration?
    Suppose something has a ph of 7.2- How do you calculate the hysdrogen ion concentration?
    Suppose that something has a hydrogen ion concentration of 2.8 times ten to the minus 15-How do you calculate its ph?
    Suppose that something has a hydrogen ion concentration of 3.6 times ten to the minus 9-How do you calculate its ph?:surprised Yonderboy98
     
  2. jcsd
  3. Nov 5, 2006 #2

    Borek

    User Avatar

    Staff: Mentor

    [H+] = 10-pH
    pH = -log([H+])

    That's all.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Ph calculations
  1. PH calculation (Replies: 10)

  2. PH calculation (Replies: 9)

  3. Calculating pH (Replies: 7)

  4. PChem: Calculating pH (Replies: 12)

  5. PH Calculation (Replies: 1)

Loading...