Water Quality and Contamination- Experiment 1: Drinking Water Quality; Based on your results, do you believe that bottled water is worth the price? Use evidence from the lab to support your opinion.
Lab 2 – Water Quality and Contamination
Experiment 1: Drinking Water Quality
Bottled water is a billion dollar industry in the United States. Still, few people know the health benefits, if any, that come from drinking bottled water as opposed to tap water. This experiment will look at the levels of a variety of different chemical compounds in both tap and bottled water to determine if there are health benefits in drinking bottled water.
POST-LAB QUESTIONS
1. Develop a hypothesis regarding which water sources you believe will contain the most and least contaminants, and state why you believe this. Be sure to clearly rank all three sources from most to least contaminants.
Hypothesis =
Table 1: Ammonia Test Results
Water Sample Test Results (mg/L)
Tap Water 0
Dasani® Bottled Water 0
Fiji® Bottled Water 0
Table 2: Chloride Test Results
Water Sample Test Results (mg/L)
Tap Water 0
Dasani® Bottled Water 0
Fiji® Bottled Water 0
Table 3: 4 in 1 Test Results
Water Sample Total Alkalinity
(mg/L)
Total Chlorine
(mg/L)
Total Hardness
(mg/L)
Tap Water 40 4.0 50
Dasani® Bottled Water 40 4.0 40
Fiji® Bottled Water 40 4.0 0
Table 4: Phosphate Test Results
Water Sample Test Results (ppm)
Tap Water 25
Dasani® Bottled Water 5
Fiji® Bottled Water 100
Table 5: Iron Test Results
Water Sample Test Results (ppm)
Tap Water 0
Dasani® Bottled Water 0
Fiji® Bottled Water 0
Table 6: pH Results
Water Sample Test Results
Tap Water 6
Dasani® Bottled Water 6
Fiji® Bottled Water 5
2. Based on the results of your experiment, would accept or reject the hypothesis you produced in question 1? Explain how you determined this.
Accept/reject =
3. Based on the results of your experiment, what specific differences do you notice among
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