This was proved by utilizing the IR spectrum to verify the C=O was not in the final product as it lacked the 1640 cm-1 peak. The melting point of 113-115 degrees C proved that the final product obtained was the E-Stilbene. The TLC plate proved that the E and the Z product was produced, show cased by the double intensity of the DCM spot to the final product’s spot, both which had an Rf of 0.92. The double intensity proved that both products were produced, but through heating and filtering, the Z-Stilbene was
David Biello states that “leaks from badly cased wells contaminated drinking water wells—and one even exploded” which shows that when things are not done properly problems can occur (Scientific American). Since fracking fluid is made up of a high percentage of water, contains many harmful chemicals, and this creates
The chemicals used in the textile, glass, medicine and many other industies meant that products could be manufactured on a much larger scale, greater than ever before thought possible.Not only was the scale much bigger, the materials were less expensive, this meant that the public had access to products once much too expensive to purchase, different coloured clothing for example, and medicines. There was however one major downside to the use of these chemicals on such a large scale, pollution. This was a huge problem in the mid nineteenth century, especially in densely populated cities.The air pollution generated by the Leblanc process began to concern many of the people who had to live in the presence of the big industrial factories responsible for emitting the unwanted fumes. According to one of the most important figures in the chemical industry during the industrial revolution James Muspratt, the fumes given off from the process were so dense that the visibility in the area was less than ninety meters. [Reference, lecture
Water pollution is when there is a build of one or more substances in water to such an extent that it causes problems for animals or plants. This form of pollution has increased as the population of this town has increased. There are two different ways in which water pollution can occur: • If pollution occurs from a single location such as a discharge pipe attached to a factory it is known as point-source pollution. • A great deal of pollution happens not from one source but from many different scattered sources. This is known as nonpoint-source pollution.
A growing number of chemicals had been detected on Long Island drinking water. A study conducted by EPA identified water in Long Island had the man-made chemical, 1,4-dioxane. This chemical was observed being prevalent in Long Island water as opposed to other regions around the nation. Its presence in the water sources of Long Island poses a health risk and danger to the residents, since its known to lead to increased risks of cancer in individuals consuming it(Dooley n.p). A survey done on the water of Long Island found out that the levels of 1,4-dioxane were so high in the water supplies, and that this generates heightened risk on the population that consumes the contaminated water.
The mixture is said to contain traces of pollen, soot, dust, smoke, and liquid (Particle Pollution, 2016). This form of air pollution appears to affect densely populated, high trafficked areas of the United States. Sources of PM can be traced to exhaust fumes from vehicles, work sites, and possibly nearby industrial plants. Further damage to air quality by PM, involves other harmful matter. PM goes through chemical reactions that involves nitrogen oxides and sulfur dioxides (Particulate Matter, n.d.).
3.1. PHYSIO-CHEMICAL CHARACTERISTICS The characteristics vary from the source as well i.e. kitchen wastewater is considered to contain higher amount of organics and physical pollutants as compared to that of laundry or bathroom wastewater (Eriksson et al., 2002). Surendran and A. D. Wheatly (1998) have found that the characteristics of grey water were found to be similar to that of domestic sewage except in terms of the ammonia and bacterial content The physical characteristics of waste water considered are the temperature, colour, turbidity and total suspended solids. The temperature of grey water is slightly high (usually lies between 18-38 degree Celsius) due to use of warm water for bathing (Eriksson et al., 2002).
The average equivalent mass for the acid is 135g/mol H+. 3. The answer obtained in Question #2 is the equivalent mass of the acid rather than the molar mass because the acid could be polyprotic, which would mean the equivalent mass is different from the molar mass since it is depending on moles of H+ per molecule, and there could be multiple moles of H+ ions in one mole of a molecule. 4. The KHP and the acid samples must be dried, because there would still be extra water which would skew the molarity.
CHAPTER 1 1. INTRODUCTION The air we respire contains mixture of natural and man-made chemical, physical and biological elements that modifies ambient air quality. Among all air pollutants, the most threatening for human health include particulate matter and gaseous pollutants such as carbon monoxide, ozone, nitrogen dioxide and sulfur dioxide (WHO). The movement of people into urban areas and the growth of industry within these areas has carried more people into contact with air pollution than any other time in recent memory. High concentrations of air pollutants can cause instant physical symptoms such as rapid pulse and restricted breathing but, even the presence of trace amounts is considered detrimental to health (Levy et al., 2000).
In addition, water is lost through evaporation in dammed reservoirs at a much higher rate than in flowing rivers. Furthermore, making dams on rivers affect the amount, quality and temperature of water that flow in streams which has drastic effects on agriculture and drinking