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Chemistry help

  • 21-06-2010 8:13pm
    #1
    uncle-mofo
    Registered Users, Registered Users 2 Posts: 262 ✭✭


    When using the formula to calculate ph, can anyone tell me what specific buttons to press when using the formula? I'm using a sharp el-w531 calculator (the black one). Can anyone help please?


Comments

  • #2
    Captain-America
    Registered Users, Registered Users 2 Posts: 1,391 ✭✭✭Captain-America


    -log is all you need.


  • #3
    uncle-mofo
    Registered Users, Registered Users 2 Posts: 262 ✭✭uncle-mofo


    Captain-America wrote: »
    -log is all you need.

    Sound, thanks for that, I was under the impression you have to have exp10 after it.


  • #4
    zam
    Registered Users, Registered Users 2 Posts: 829 ✭✭✭zam


    Just -log? Is that the same as -logbase10? That's what I do...


  • #5
    Captain-America
    Registered Users, Registered Users 2 Posts: 1,391 ✭✭✭Captain-America


    -log implies -log to the base ten.

    For example, on your page you will write -log10(0.000001) = whatever. (The 10 should be subscript)

    But on your calculator use -log(0.000001) = whatever.


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