final lab Report essay

final lab Report essay 1

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

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 = If tap water straight from the faucet contains the most contaminants then bottle water will have less added to them.

1 Tap water will most contaminated then Dasani and then Fiji

Table 1: Ammonia Test Results
Water Sample	Test Results (mg/L)
Tap Water	0 mg/L
Dasani® Bottled Water	0 mg/L
Fiji® Bottled Water	0 mg/L

Table 2: Chloride Test Results
Water Sample	Test Results (mg/L)
Tap Water	500 mg/L
Dasani® Bottled Water	0 mg/L
Fiji® Bottled Water	0 mg/L

Table 3: 4 in 1 Test Results
Water Sample	Total Alkalinity (mg/L)	Total Chlorine (mg/L)	Total Hardness (mg/L)
Tap Water	80 mg/L	0.12 mg/L	0 mg/L
Dasani® Bottled Water	40 mg/L	0 mg/L	0 mg/L
Fiji® Bottled Water	40 mg/L	1.0 mg/L	50 mg/L

Table 4: Phosphate Test Results
Water Sample	Test Results (ppm)
Tap Water	0 ppm
Dasani® Bottled Water	50 ppm
Fiji® Bottled Water	0 ppm

Table 5: Iron Test Results
Water Sample	Test Results (ppm)
Tap Water	0.15 ppm
Dasani® Bottled Water	0 ppm
Fiji® Bottled Water	0

Table 6: pH Results
Water Sample	Test Results
Tap Water	7
Dasani® Bottled Water	6
Fiji® Bottled Water	5

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 = I accept my hypothesis. Tap water did contain the most contaminants then bottle water.

Based on the results of your experiment, what specific differences do you notice among the Dasani®, Fiji®, and Tap Water?

Answer = The difference I see between these is that Fiji is most impressive. Fiji water is less contaminated and tap is the most.

Based upon the fact sheets provided (links at the end of this document), do any of these samples pose a health concern? Use evidence from the lab to support your answer.

Answer = Base on my fact sheet the one that stood out the most with health risk is tap water with Chlorine

Based on your results, do you believe that bottled water is worth the price? Use evidence from the lab to support your opinion.

Answer = I still feel that bottle water is worth the price and my fact sheets can prove it.

**NOTE: Be sure to complete steps 1 - 32 of Lab 3, Experiment 1 (the next lab) before completing your work for this week. Lab 3 involves growing plants, and if the work is not started this week, your seeds will not have time to grow and the lab will not be finished on time.**

FACT SHEETS

Ammonia https://www.wqa.org/Portals/0/Technical/Technical%20Fact%20Sheets/2014_Ammonia.pdf

Chloride

http://www.who.int/water_sanitation_health/dwq/chloride.pdf

Phosphate

http://osse.ssec.wisc.edu/curriculum/earth/Minifact2_Phosphorus.pdf

Iron

http://www.who.int/water_sanitation_health/dwq/chemicals/iron.pdf

pH https://www.watersystemscouncil.org/download/wellcare_information_sheets/potential_groundwater_contaminant_information_sheets/9709284pH_Update_September_2007.pdf

Alkalinity

https://www.safewater.org/PDFS/communitywatertestkit/Water_Quality_Tests.pdf

Chlorine

http://www.watertechonline.com/testing-for-chlorine-in-drinking-water/

Hardness

http://des.nh.gov/organization/commissioner/pip/factsheets/dwgb/documents/dwgb-3-6.pdf

References

Any sources utilized should be listed here.

https://www.cdc.gov/healthywater/drinking/public/water_disinfection.html

http://www.who.int/water_sanitation_health/dwq/chemicals/hardness.pdf