Final answer:
The neutralization of a protonated amino group, such as H3N-, typically involves the addition of a base, which accepts protons to produce a salt and water.
Step-by-step explanation:
When a protonated amino group (with the notation H3N-) is completely neutralized, this process typically involves the addition of a base. The base can accept protons and neutralize the positive charge on the nitrogen atom. The result of this neutralization process is usually a salt and water, with the proton transferred to the base, forming its conjugate acid.
In relation to the Bronsted-Lowry theory of acids and bases, a substance that accepts protons is defined as a base. For instance, the substance C5H5N can act as a proton acceptor when it donates its lone pair to a proton (H+), thereby neutralizing the protonated group and forming a weak base.
The neutralization of H3N- illustrates a classic acid-base reaction where an acid donates a proton to a base, resulting in the formation of a salt (conjugate acid of the base) and water. This is a common reaction in chemistry, particularly in the context of titrations and buffering systems.