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Answer to Question #8327 in Organic Chemistry for Meenaakshi
Question #8327
Hi thank you very much for your help. I've another question .
Which is the order of increasing acidity for the given carboxyl groups(least first)?
CH3COOH, NH3+CH2COOH ,CH3CONHCH2COOH
My answer is CH3COOH< CH3CONHCH2COOH<NH3+CH2COOH. From what I read in my Chem textbook,NH3+CH2COOH has low pKa value since it has both COOH & NH3 groups protonated,so it is most acidic.
Anyway, I'm unsure about my approach. Need help . Thanks
Which is the order of increasing acidity for the given carboxyl groups(least first)?
CH3COOH, NH3+CH2COOH ,CH3CONHCH2COOH
My answer is CH3COOH< CH3CONHCH2COOH<NH3+CH2COOH. From what I read in my Chem textbook,NH3+CH2COOH has low pKa value since it has both COOH & NH3 groups protonated,so it is most acidic.
Anyway, I'm unsure about my approach. Need help . Thanks
Expert's answer
CH3COOH>CH3CONHCH2COOh>NH3+CH3COOH
the first is acid,the second is acid
too,but it is weaker acid(aminoacid) and the last one is salt
the first is acid,the second is acid
too,but it is weaker acid(aminoacid) and the last one is salt
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