MCAT Question of the Day
    •

    Q:

    		 For the pH of a solution to be estimated accurately using only the concentration of the acid present, which of the following must be true?
    		 

    A

    		 The Ka of the acid is very high.

    B

    		 The concentration of H+ must equal the concentration of the conjugate base A-.

    C

    		 The acid must be a weak acid; the pH of strong acids cannot be calculated directly in this way.

    D

    		 The acid must be concentrated; the estimation does not work at high dilution.



    Acid/Base Equilibria |
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