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chemistry form 4 - Acids n bases (concentration)
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Lab 2 - Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell, Color, Etc.) Beaker Observations 1 Grey wastewater with pungent odor 2 Grey wastewater with pungent odor 3 Grey wastewater with pungent odor 4 Grey wastewater with pungent odor 5 Grey wastewater with pungent odor Hypothesis: Greywater is highly contaminated with both macro- and micro-pollutants. Post-Lab Questions 1. Greywater from the five beakers is highly contaminated with both macro- and micro-pollutants, what is shown by the observations (grey color and purgent odor). So, hypothesis was confirmed: grey color indicated parabens, while purgent odor must be connected with the ammonium content presumably from urine contamination. 2. Two main types of contaminants, parabens and ammonium, have had the most potent effect on greywater, due to a fact that parabens produced its grey color, and ammonium content influenced its purgent odor. 3. On a larger scale, what type of affects would these contaminants have on a town’s water source and the people who drank the water? If people were to ingest this contaminated water they might get sick, have birth defects, have trouble having a child, may die, etc. Instead of healthy drinking water, people in the cities would consume wasted greywater, with its grey color and purgent odor, what leads to their weakening and, in a long term perspective, to the multiple deceases of their excretory systems (Ottoson&Stenstrom, 2003). 4. From the introduction to this lab, you know that there are typically five steps involved in the water treatment process. Identify the processes (e.g., coagulation) that were used in this lab and describe how they were performed. 4. These types of human pollution are: chemical uses, industrial applications, and agriculture. Within our house, other items are: transporting and food processing. Lab 2 - Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell, Color, Etc.) Beaker Observations 1 To me this is just water, there is no smell. 2 Pouring the oil into the water, the oil started to bubble at the top. As I stirred the oil it turned into smaller bubbles. It looks as if the oil has placed a thick line of film on the water 3 After pouring the vinegar into the water the water turned a shade darker. The water looks cloudy. The smell is the only change from the water. 4 After pouring the detergent, the water began to look cloudy and there is a thin layer of bubbles. 5 The water turned a medium brown and small flakes of soil that circled around the top of the water. Smells like potting soil. 6 The water and oil mixture seemed to have a “cleaner” look to the water; it had a light brown color. There was still a thin shiny film at the top of the water. 7 The water and vinegar mix had a very light brown color but it looked cleaner than the other two. 8 There is a light brown color but this seems to have a dark cloudy or foggy like t ...
Lab 2 - Experiment 1 Effects of Groundwater ContaminationTa.docx
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1 15 Final Lab Report: Water Quality & Contamination Student: Monica McNeal SCI207: Dependence of Man of on the Environment Instructor: Jeffrey Sigler Date: August 5, 2013 A Study of the groundwater contamination, water treatment and water quality Abstract Comment by Jeffrey Sigler: This isn’t really an abstract. It is more of an introduction. An abstract is very succinct (a paragraph or two) and summarizes the entire study – including results and conclusions. In this experiment we explore the effects of groundwater contamination, study the water treatment process and teststudy the quality of tap water versus bottled water. Groundwater is rain water that infiltrates the soil and underlying rocks, or water from lakes that is absorbed in the soil or bedrock. When harmful substances are absorbed in the groundwater, the contamination is not only harmful for humans, but also causes problems to the flora and fauna. In the first experiment we study the effects of groundwater contamination. Two main types of contaminants, parabens and ammonium, have had the most potent effect on greywater, due to a fact that parabens produced its grey color, and ammonium content influenced its purgent odor (citation). By mixing water with common products we have in our household we were able to show the chemical poperties of the water were changed by vegetable oil, vinegar and laundry detergent. Imagine that happening on a global scale, and that will give us a picture of massive groundwater contamination that is detrimental to the living organisms. In the second experiment we studiedy the process of water filtration. We created a home filtration system, similar in concept to the ones used in the cities'municipal wasteterwater treatment plans. This experiment made us aware that a succesfull wastewater treatment will eliminate the ammonia, chloride, phosphate and iron from the tap water. The test strips helped us identify the amounts of the chemical elements that are still present in the drinking water. The third experiment is an extension of the second experiment. The third experiment looked at the examined the levels of various chemicals in bottled water and tap water. The bottled water industry is a multi-million dollar industry in the United States (citation??). This experiment helped us properly understand the fact that bottled water is not necessarily free of chemicals and may not be more beneficial compared to the treated tapwater. Introduction Wastewater Water is a basic living necessity that needs to be protected. According to the EPA, "40% of people living in the United States use groundwater for drinking, cooking, cleaning, showering, and all other types of activities. 97% of people living in rural areas of the nation use groundwater, and 30-40% of water used agriculturally (for farming) is from the ground" (1) In other words, water is used for many important things such as dri ...
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Lab 2 - Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell, Color, Etc.) Beaker Observations 1 Grey wastewater with pungent odor 2 Grey wastewater with pungent odor 3 Grey wastewater with pungent odor 4 Grey wastewater with pungent odor 5 Grey wastewater with pungent odor Hypothesis: Greywater is highly contaminated with both macro- and micro-pollutants. Post-Lab Questions 1. Greywater from the five beakers is highly contaminated with both macro- and micro-pollutants, what is shown by the observations (grey color and purgent odor). So, hypothesis was confirmed: grey color indicated parabens, while purgent odor must be connected with the ammonium content presumably from urine contamination. 2. Two main types of contaminants, parabens and ammonium, have had the most potent effect on greywater, due to a fact that parabens produced its grey color, and ammonium content influenced its purgent odor. 3. On a larger scale, what type of affects would these contaminants have on a town’s water source and the people who drank the water? If people were to ingest this contaminated water they might get sick, have birth defects, have trouble having a child, may die, etc. Instead of healthy drinking water, people in the cities would consume wasted greywater, with its grey color and purgent odor, what leads to their weakening and, in a long term perspective, to the multiple deceases of their excretory systems (Ottoson&Stenstrom, 2003). 4. From the introduction to this lab, you know that there are typically five steps involved in the water treatment process. Identify the processes (e.g., coagulation) that were used in this lab and describe how they were performed. 4. These types of human pollution are: chemical uses, industrial applications, and agriculture. Within our house, other items are: transporting and food processing. Lab 2 - Experiment 1: Effects of Groundwater Contamination Table 1: Water Observations (Smell, Color, Etc.) Beaker Observations 1 To me this is just water, there is no smell. 2 Pouring the oil into the water, the oil started to bubble at the top. As I stirred the oil it turned into smaller bubbles. It looks as if the oil has placed a thick line of film on the water 3 After pouring the vinegar into the water the water turned a shade darker. The water looks cloudy. The smell is the only change from the water. 4 After pouring the detergent, the water began to look cloudy and there is a thin layer of bubbles. 5 The water turned a medium brown and small flakes of soil that circled around the top of the water. Smells like potting soil. 6 The water and oil mixture seemed to have a “cleaner” look to the water; it had a light brown color. There was still a thin shiny film at the top of the water. 7 The water and vinegar mix had a very light brown color but it looked cleaner than the other two. 8 There is a light brown color but this seems to have a dark cloudy or foggy like t ...
Lab 2 - Experiment 1 Effects of Groundwater ContaminationTa.docx
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DIPESH30
1 15 Final Lab Report: Water Quality & Contamination Student: Monica McNeal SCI207: Dependence of Man of on the Environment Instructor: Jeffrey Sigler Date: August 5, 2013 A Study of the groundwater contamination, water treatment and water quality Abstract Comment by Jeffrey Sigler: This isn’t really an abstract. It is more of an introduction. An abstract is very succinct (a paragraph or two) and summarizes the entire study – including results and conclusions. In this experiment we explore the effects of groundwater contamination, study the water treatment process and teststudy the quality of tap water versus bottled water. Groundwater is rain water that infiltrates the soil and underlying rocks, or water from lakes that is absorbed in the soil or bedrock. When harmful substances are absorbed in the groundwater, the contamination is not only harmful for humans, but also causes problems to the flora and fauna. In the first experiment we study the effects of groundwater contamination. Two main types of contaminants, parabens and ammonium, have had the most potent effect on greywater, due to a fact that parabens produced its grey color, and ammonium content influenced its purgent odor (citation). By mixing water with common products we have in our household we were able to show the chemical poperties of the water were changed by vegetable oil, vinegar and laundry detergent. Imagine that happening on a global scale, and that will give us a picture of massive groundwater contamination that is detrimental to the living organisms. In the second experiment we studiedy the process of water filtration. We created a home filtration system, similar in concept to the ones used in the cities'municipal wasteterwater treatment plans. This experiment made us aware that a succesfull wastewater treatment will eliminate the ammonia, chloride, phosphate and iron from the tap water. The test strips helped us identify the amounts of the chemical elements that are still present in the drinking water. The third experiment is an extension of the second experiment. The third experiment looked at the examined the levels of various chemicals in bottled water and tap water. The bottled water industry is a multi-million dollar industry in the United States (citation??). This experiment helped us properly understand the fact that bottled water is not necessarily free of chemicals and may not be more beneficial compared to the treated tapwater. Introduction Wastewater Water is a basic living necessity that needs to be protected. According to the EPA, "40% of people living in the United States use groundwater for drinking, cooking, cleaning, showering, and all other types of activities. 97% of people living in rural areas of the nation use groundwater, and 30-40% of water used agriculturally (for farming) is from the ground" (1) In other words, water is used for many important things such as dri ...
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Acid, base and salt
1.
topic THE CHARACTERISTIC
OF BASE
2.
3.
4.
5.
6.
The table of
litmus paper color changes blue Red water ammonia Orange juice Litmus paper
7.
Table change of
litmus paper colour The table of litmus paper color changes blue Blue red blue Red blue Red Red water ammonia Orange juice Litmus paper
8.
9.
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