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Text Comments (5)

1 answer

Last reply by: Professor Hovasapian
Thu Jul 26, 2012 10:08 PM

Post by Weiwei Gerl on July 26, 2012

I am confused about Example 5. Ka is known, but should I use Kw/Ka to find out the Kb first since CH3NH2 is a base?

0 answers

Post by chenglong piao on September 12, 2012

That's what I thought too

1 answer

Last reply by: Professor Hovasapian
Fri Oct 12, 2012 4:59 PM

Post by Luis Esposito on October 12, 2012

question. in example 1 in the previous lecture, you used 10^-7 as the water concentration whereas in example 2 in this lecture you used 10^-14. why?

Percent Dissociation: Strong & Weak Bases

  • Strong Bases are salts that dissociate completely and produce Hydroxide upon dissociation.
  • Weak bases react with water to abstract a Hydrogen Ion, thus producing Hydroxide Ion.
  • Again, in A/B reactions, Hydrogen Ion is the only thing that moves and switches partners.

Percent Dissociation: Strong & Weak Bases

Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.

Advanced Placement Chemistry