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What is Contaminating the Water Supply? -
Exploration Laboratory
Background
A local town is concerned that the water from their well has started to become
contaminated. Preliminary testing has narrowed down the potential contaminant
to one of the following salts:
•Calcium Chloride
(CaCl2)
•Potassium Chloride
(KCl)
•Sodium Chloride (NaCl)
•Strontium Chloride
(SrCl2)
•Potassium Sulfate
(K2SO4)
•Sodium Sulfate
(Na2SO4)
•Sodium Acetate
(NaC2H3O2)
•Sodium Carbonate
(Na2CO3)
•Potassium Carbonate
(K2CO3)
Your job is to determine which contaminant is in the water supply, its
concentration in the water, and how hazardous the contaminant is to the people
consuming the water.
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Figure 5.1: "Urban Well Water" by FotoGrazio is licensed under CC BY-
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