In this lab we tested the purity of water by looking for the chemicals free chlorine, chloride, sulfate, nitrate, copper, total hardness, iron, hydrogen sulfide, lead, pesticides, pH, total alkalinity, and total chlorine inside a water sample. The chemicals that produced a 0.0 result meant that there was no trace of that chemical inside the sample. The chemicals not found were copper, hydrogen sulfide, free chlorine, lead, iron, pesticide, and total chlorine.
As a class we found the results of the other chemicals that were present in the water and there were two trials per test. The results for sulfate was 125 mg/L and 0.0 mg/L inside the sample, 0.0 mg/L and 0.2 mg/L of nitrite, 125 mg/L and 250 mg/L of chloride, 2.0 mg/L for both trials of nitrate and 0.0 for the trials of total chlorine. The total hardness of the water was 250, and the total alkalinity was 5.00. The average pH in our class was 8.5.
The chemicals found in the sample can be hazardous when they exceed the mandatory MCL or secondary MCL mandated by the EPA. The SMCL of sulfate is 250 mg/L. Ingesting high levels of sulfate causes health hazards like diarrhea. Water that has 1 mg/L of nitrite can be very detrimental to infants under six months old and cause blue baby syndrome. Nitrate has the same hazards of nitrite but the MCL is 10 mg/L. The SMCL of chloride is 250 mg/L. There are no health effects in ingesting water with chloride although it does give a salty taste that is undesirable. Water that contains chloride should be checked for sodium because sodium can cause health effects.
The Essay on The Element Chlorine Water Chemical Chloride
The Element: Chlorine General Information We researched the chemical element known as chlorine. Chlorine hasan atomic number of 17 and an atomic weight of 35. 453. It has a valence number of 3. The element has 3 energy levels. Chlorine exists as a greenish-yellow gas at normal temperatures and pressures. Chlorine is second in reactivity only to fluorine among the halogen elements. Chlorine is a ...
The MCL of total chlorine is 4.0 mg/L and it can cause stomach discomfort along with nose and eye irritation. The EPA Secondary drinking water regulation of alkalinity is 500 ppm. High amounts of alkalinity in water can cause drying of skin. The average pH of drinking water is 8.5, when it is greater than 8.5 it means the water is hard. Water hardness is caused by compounds like calcium and magnesium, and there are no health effects caused by drinking hard water. None of the results from the chemicals we tested for in the sample exceeded the EPA’s mandatory MCL therefore making the water safe for consumption.
Lead can cause major health effects to humans when exposed in high, or even low levels. It can cause behavioral problems and learning disabilities in children, and kidney problems and high blood pressure in adults. When young children and infants ingest or are exposed to lead it can cause delays in their mental and physical development. It can also damage parts of the body like the nervous and reproductive system. Lead interferes with the metabolism, and in large amounts can cause damages as serious as coma and death. The most common source of lead contamination is through corrosion of the plumbing systems in homes.
Corrosion is metals being damaged by chemical reaction. This can occur in pipes which then gets into the water that runs through those pipes, and contaminates the water. The amount of lead in water also depends on how long the water stays in pipes, the amount of minerals in the water, the acidity of the water, and the temperature. It is hard to tell when there is lead in water because you can’t see, taste, or smell lead. The only thing you can do is get the water tested, and check to see if you have lead pipes. Lead pipes are a dull grey color and soft so its easy to scratch. EPA regulates lead contamination by educating more people about lead poisoning, and a system that collects water samples in places that are likely to have pipes containing lead.
The Essay on In Your Opinion Are Water Resources Over Or Undervalued In The United States
In your opinion are water resources over or undervalued in the United States? Water is the most important life element to humans after oxygen. Without water human can live only up to 3 days after which they would die. Today water represents a great and profitable industry for the fact that the producers of the main US soft drinks need water, as well as the ordinary citizen who use water for their ...
