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    WhitneyRobinson's Avatar
    WhitneyRobinson Posts: 16, Reputation: 1
    New Member
    		  
    #1

    May 11, 2009, 04:00 PM
    pH of 7.00
    What is the pH of a solution with a hydronium ion concentration of
    7.00 X 10-7 mol/L?

    a. 1.21 b. 7.00
    c. 6.35 d. 6.15
    e. none of the above.
    Perito's Avatar
    Perito Posts: 3,139, Reputation: 150
    Ultra Member
    		  
    #2

    May 11, 2009, 08:15 PM

    The definition of pH is:



    You are given that



    Take the common log of that and calculate its negative.
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