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Dual Ocean Chemistry

Satisfactory Essays

When the water is so contaminated that you cannot drink it, what could you do to get a pure glass of H2O? Students taking Western Kentucky University (WKU) Dual-Credit “SPAN Chemistry” class at Metcalfe County High School (MCHS) completed a lab investigation of the distillation of contaminated water.

In this lab students tested the given contaminated (hard water) for the ions present in the water prior to the distillation, and then after the distillate (pure water) was collected, the same procedures were followed to prove the absence of the hard water contaminates. SPAN Chemistry is so called because this dual-credit class spans the gap between high school and the extremely rigorous college chemistry expectations.

If you have lived in Kentucky very long you know what “hard water” is and how it leaves a scale on our bathroom fixtures, clogs our hot water tanks, makes it hard for soaps to lather and clean our clothes, leaves …show more content…

These ions along with chloride and sulfate ions are very common in our water supply and typically we simply learn to deal with hard water as a way of life in Kentucky. If you need or want to reduce the amount of these ions, especially calcium and magnesium, consider getting a water filter for your faucet tap or refrigerator.

For more information on hard water in Kentucky, see the following article on Hard Water – To Soften or Not to Soften, by the Cooperative Extension Service at the University of Kentucky, College of Agriculture. (http://www2.ca.uky.edu/agcomm/pubs/ip/ip7/ip7.pdf)

If you are a MCHS WKU student in chemistry, you get to investigate how to test for these dissolved ions and then physically separate the pure water from the dissolved minerals/ions and prove that distillation is an absolute way to obtain the purest form of H2O, albeit a more expensive and time consuming

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