Textbook 6D.5

[Gwendolyn Hill 2F]

Hi!
So the problem is as follows:
6D.5 Calculate the pH, pOH, and percentage protonation of sol- ute in each of the following aqueous solutions: (a) 0.057 m NH3(aq); (b) 0.162 m NH2OH(aq); (c) 0.35 m (CH3)3N(aq); (d) 0.0073 m codeine, given that the pKa of its conjugate acid is 8.21.

On part a, in the solutions it says Kb = 1.8 x 10^-5, and that's how you solve for x. I am confused on how that is the Kb value? How would we find the Kb value..? Are we supposed to use the table from before in the book?

[Peter DePaul 1E]

Yeah you would have to find the value from the textbook and whatever value they provide is the one to use.

[Gwendolyn Hill 2F]

Yeah you would have to find the value from the textbook and whatever value they provide is the one to use.

Thanks!