analytical chemistry

Titration of an Esterification Reaction to Determine Equilibrium Constant

lowell Thomson | Wed, 09/21/2016 - 08:44

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This activity was submitted for a 2016 ChemEd X Call for Contributions soliciting input regarding the big ideas being put forth by organizations like AP. The author shares a lab activity that relies on connections - between stoichiometry, esterification, equilibrium, kinetics, titrations and uncertainty of calculations. He also shares the resources he created.

Attempts to Detect Cocaine on Money: A Great Exploration for National Chemistry Week 2016

Tom Kuntzleman | Mon, 09/05/2016 - 06:44

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Is it possible to use materials found in high school chemistry labs to extract and subsequently detect cocaine on dollar bills? Let me know what you think after reading this blog post!

KWIPPED

Amanda Taylor | Tue, 06/09/2015 - 12:55

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KWIPPED is a highly efficient, no-cost resource for chemistry teachers looking to rent equipment for projects. If you need to source equipment that is too expensive to buy, KWIPPED.com is a great way to find short or long-term rentals that will fit your budget.

Homogeneous Solutions using PhET Interactive Simulations and labs

Trish Loeblein | Mon, 09/16/2013 - 15:19

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This is a series of experiments, PhET Interactive Simulation activities, and clicker questions to relate macroscopic and molecular representations of homogenenous solutions. Graphing skills are also used.

Guidelines On Determining And Reporting Significant Figures In Chemical Measurements

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A measured value has little or no true meaning and thus, it is useless, unless the figures (digits) in that value were deemed to be significant and the significant figures were properly determined and reported. Deciding the appropriate number of significant figures for the reporting of numerical data is not an obvious or easy task.

Molecules of Murder: Criminal Molecules and Classic Cases

Hal Harris | Wed, 10/01/2008 - 01:00

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Poisons are among the favorite weapons of mystery writers, if not murderers. Guns may be quicker, but poisons have a cachet that you really can't beat. On the other hand, murder by poison has become increasingly dangerous - to the perpetrator!