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Chemistry: Buffer solutions. Logarithms (4)

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Uploaded by on May 1, 2009

Chemistry: Qualitative introduction to buffer solutions (acid/base chemistry). How to approximate logarithms and pHs without a calculator.

This is a recording of a tutoring session, posted with the student's permission.

These videos are offered on a "pay-what-you-like" basis. You can pay for the use of the videos at my website:
http://www.freelance-teacher.com/videos.htm

For a list of all the available video series, arranged in suggested viewing order, go to my website.

For a playlist containing all the videos in this series, click here:
http://www.youtube.com/watch?v=xhnXmK52Hbc&feature=PlayList&p=0849F05...

(1) Buffers
(2) Continued
(3) Continued
(4) Continued
(5) Continued
(6) Logarithms
(7) Continued
(8) Continued
(9) p
(10) Continued
(11) Continued
(12) Continued. Summary

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Education

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All Comments (8)

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  • Does the reaction forming SO4(-) also have a spectator ion like the former reaction which produced CH3COO(-) and had Na(+) as the spectator ion??? Thank you

  • Good lecture!!!!

  • You are awesome!!!!

    Thank you..

  • thank you very much!! you are a life saver!!! you really clarify every thing, i never had understood buffer solution. i will spread your words to my friends. thanks again.

  • pH=-log[H+]

    I've never see the equation with hydronium before. pOH= -log[OH-]

    He writes hydroxide as HO- in an earlier video.

    P.S. A trick my teacher said to remmber this is to think of power of hydrogen and power of hydroxide when you think about pH and pOH.

  • @deltaforce when the h2so4 deprotonates the ch3coo will attract the proton let go by the h2so4. in effect sponging it up.

  • does all weak acids sponge up

  • why does the ch3coo sponge up

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