8-Buffers - Chemical Buffers Edward A Mottel Department of...

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Chemical Buffers Edward A. Mottel Department of Chemistry Rose-Hulman Institute of Technology
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05/07/09 Chemical Buffers Reading Assignment: Zumdahl: Chapter 8.1-8.4 This lecture introduces the topic of buffered solutions, their preparation, behavior and applications.
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Chemical Buffer H + H + H + H + H + H + H + strong acid addition 7.00 6.99 6.98 H + H + H + H + H + H + H + H + H + 7.00 4.50 2.00 Strong acid addition Significant pH decrease A solution which maintains a relatively constant pH, even when a small amount of strong acid or base is added to it.
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Chemical Buffer OH OH OH OH OH OH OH strong base addition 7.00 7.01 7.02 OH OH OH OH OH OH OH OH OH 7.00 9.50 12.00 Strong base addition Significant pH increase A solution which maintains a relatively constant pH, even when a small amount of strong acid or base is added to it.
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05/07/09 Features of a Buffer Generally contains two reactive compounds, or one compound which can react in two ways.
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This note was uploaded on 04/24/2008 for the course CHEM 202 taught by Professor Motle during the Spring '08 term at Rose-Hulman.

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8-Buffers - Chemical Buffers Edward A Mottel Department of...

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