chemistry

At ph of 12 what charged groups would be present on glycine

I said a NH2+ and coo- because a base accepts protons.

Thank you

I am not an organic chemist; however, I wonder, at a pH of 12, how there would be sufficient H^+ to form the NH2^+ ion? I can see the H^+ from the COOH group being removed at pH 12. Check my thinking.

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