Sunday, November 29, 2015

Acid Base Reactions Lesson

Monday during class we took our notes on reactions between acids and bases. These types of reactions will produce a water and a salt, and the water produced is the driving force of this reaction.
Here's a small example of what it would look like:
http://lrs.ed.uiuc.edu/students/mihyewon/images/HClNaOH.gif
Within the acid-base reaction, there is a possibility for both strong acids and bases, as well as a weak version of both. Here are some characteristics of both.
strong acids:

  • produce H+
  • protonate completely
  • HCl, HBr, HI
  • are the strongest if the oxygens outnumber the hydrogens by 2 or more
strong bases:
  • contain an -OH- anion
  • disassociate completely 
  • all group 1 and 2 metals plus the -OH anion are the strongest
weak acids:
  • do not protonate completely
  • are not on our memorized list
weak bases:
  • do not disassociate completely
  • are not on our memorized list
A good thing to remember is when looking at the molecular diagram, to always look for the parents. If there are more parents, this means it is weak, or if there are less, it is strong. 
http://mgh-images.s3.amazonaws.com/9780073402680/5120-4-3IRC1.png



Here's a link to walk through the solving of these problems: http://science.widener.edu/svb/pset/acidbase.html
Here's a video for further explanation: https://www.youtube.com/watch?v=ANi709MYnWg

4 comments:

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  2. This, too, is a very insightful post. I really like how you sum up whole lessons into simpler ways to make them more understandable. The sources you find are really helpful and different, too. You rock!!!

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  3. This is a great post the helped me understand acid base reactions so much better! I really like th pictures you included and the links. Thanks!

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