MCAT Question of the Day


  • Q:

    The molecule below has a pKa greater than 40. If a neutral nitrogen replaces the carbon at the fourth position on the ring, what will happen to the pKa and why?



     

    A

    The pKa will increase because the introduction of the nitrogen atom eliminates any resonance

    B

    The pKa will increase because once the molecule is deprotonated, the negative charge can be stabilized by the more electronegative nitrogen atom

    C

    The pKa will decrease because the introduction of the nitrogen atom eliminates any resonance

    D

    The pKa will decrease because once the molecule is deprotonated, the negative charge can be stabilized by the more electronegative nitrogen atom



    Acid/Base Equilibria | Molecular Structure |
    Subscribe


    Connect

    Questions? We're here to help!

    Ask Us