MCAT Question of the Day
    •

    Q:

    		 An acid is titrated with a sodium hydroxide and a titration curve is developed. The half-equivalence point is found to be at a pH of approximately 4 and the equivalence point is found to be at a pH of approximately 8. What is the Ka of this acid?
    		 

    A

    		 10-3

    B

    		 9 x 10-5

    C

    		 1.2 x 10-8

    D

    		 9 x 10-10



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