As part of an analytical chemistry laboratory course, a student measured the Ca2+Ca2+ content in two...

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As part of an analytical chemistry laboratory course, a student measured the Ca2+Ca2+ content in two...

As part of an analytical chemistry laboratory course, a student measured the Ca2+Ca2+ content in two water samples, city-supplied drinking water, and well-supplied drinking water, using two different analytical methods, flame atomic absorption spectrometry (FAAS) and EDTA complexometric titration. The results of this experiment are given in the table as the mean Ca2+ concentration and standard deviation (ss) in parts per million (ppm). Each sample was measured five times (n=5) by each method.

Sample Comparison: For each method (FAAS and EDTA titration), compare the Ca2+Ca2+ content measured in the city-supplied and well-supplied drinking water samples. Calculate the tt value for each method.

EDTA: tcalc= ???

Method	City-Supplied Drinking Water (¯x±sx¯±s)	Well-Supplied Drinking Water (¯x±sx¯±s)
FAAS	57.59±0.68 ppm	64.08±0.70 ppm
EDTA titration	58.34±0.97 ppm	64.93±0.99 ppm

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For the final project of an analytical chemistry laboratory course, the students were asked to quantify the lead (Pb2+) content in a drinking water sample. To receive a passing grade for the project,...

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For the final project of an analytical chemistry laboratory course, the students were asked to quantify the lead (Pb2+) content in a drinking water sample. To receive a passing grade for the project,...

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As part of an analytical chemistry laboratory course, a student measured the Ca2+Ca2+ content in two...