Percentage protonated

[Deepika Pugalenthi 1A]

What is the significance of finding the percentage protonated? Does it help check if the values are valid or plausible?

[Dimitri Speron 1C]

The percentage protonated is just another way of indicating the power of a base. If the percent protonated was close to 100, that would mean that you have a strong base because all, or almost all, of the base has received a proton from water and become the conjugate acid. A low percent protonation indicates that a lot of the base still exists in an unprotonated form and is therefore not a strong base.

[Nikki Bych 1I]

Further, Lavelle mentioned for weak acid/base it should be below 5% protonated as a way to check if you did the problem right.