18.10 Predicting the Results of an Acid/Base Reaction (Video)
- Page ID
- 342569
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Video Topics
This video discusses how to predict the results of an acid/base reaction by comparing Ka’s.
For a given Bronsted acid/base reaction there will an acidic species on either side of the arrow.
The equilibrium will favor the side with the weakest acid.
Ka’s, pKa’s or structural features can be used to determine the weakest acid.
HF(aq) + HS-(aq) ⇔ F-(aq) + H2S(aq)
Ka for HF = 7.2 x 10-4
Ka for H2S = 1 x 10-7
H2S is the weaker acid therefore the equilibrium will lie to the right.
So {H2S} > {HS-} and {F-} > {HF}
Link to Video
Predicting the Results of an Acid/Base Reaction: https://youtu.be/4zI4k6DZ83k
Attribution
-
Prof. Steven Farmer (Sonoma State University)