Hardness of Water by EDTA Titration Introduction Water hardness is caused by natural minerals that are dissolved into the water‚ predominantly calcium and magnesium‚ and is measured as the equivalent concentration of calcium carbonate (in milligrams per litre). Water hardness is usually noticed because of difficulty in lathering soap and the formation of a scum in the bathtub. Ca2+ and Mg2+ form insoluble salts with soaps causing precipitation of the soap scum. Another effect of hard water is “boiler
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Aim: To compare the foaming capacities of five different commercial soaps. Apparatus: 5 test tubes‚ 5 conical flasks (100 ml)‚ test tube stand‚ Bunsen burner and stop watch. Materials Required: 5 different samples of soap and distilled water Theory: The foaming capacity of a soap sample depends upon the nature of soap and its concentration. This can be compared for various samples of soaps by taking the same concentration of solution and shaking them.The foam is formed and the time taken
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Surface Water Pollution Freshwater makes up less than three percent of earth’s water‚ but is the source of virtually all drinking water.55 percent of that water comes from reservoirs‚ rivers‚ and lakes‚ These sources‚ called surface water‚ are vulnerable to pollution discharged out of pipes and precipitating out of the air but the primary source of their pollution today is runoff‚ pollutants washing off the land. These nonpoint or scattered sources are not easily traceable. fertilizers used
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Water is an integral part of land/soil productivity. Its misuse can cause both degradation and erosion of soils. Management of water resource is considered to necessary for well being of human life as well as crop yields. There is a gap between the seasonal availability of water and its equitable supply throughout the year. Accordingly the storage of water and passage through soils is very important. It is well known that about 70% area in this country is subject to varying degree of water stress
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sector (PEM‚ 2003). As stated in the EMB report‚ domestic wastewater discharges contribute highest to the BOD load as the lack of sewage treatment system allows more than 90 percent of inadequately treated domestic sewage to be discharged into surface waters‚ which contain bacteria and viruses that threaten human life. Geographically‚ data show that one-third (30 percent) of BOD generation comes from Metro Manila and Region IV alone‚ at 18 and 15 percent‚ respectively (PEM‚ 2003). Industrial wastewater
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Bling h2o is a high end or “Super Luxury” bottled water product created by Kevin G Boyd a Hollywood producer / designer. Bling h2o costs from $US35.00 to $US2‚600.00 per bottle and the water is bottled into glass bottles studded with Swarovski crystals. Bling has been featured on MTV music awards and The Emmys and on it’s website refers to itself as the Rolls Royce of bottled water. To identify the potential consumers in Australia we need to look at the target market and market segments bling
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been running their family business‚ a water park called Wild Water‚ since they both graduated from college. The Salernos operate the park‚ which is located near the New Jersey shore‚ with the help from their parents. Marie’s husband and Jason’s wife are also involved in the business. Wild Water has now been in business for more than 40 years – it is a landmark to both local and summer tourists. The water park features such attractions as a wave pool‚ several water slides‚ a flume ride‚ a kiddie pool
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Water and Life on Mars Mars perhaps first caught public interest in the late 1870s‚ when Italian astronomer Giovanni Schiaparelli reported using a telescope to observe canali‚ or channels‚ on Mars. By the turn of the century‚ popular songs told of sending messages between Earth and Mars by means of huge signal mirrors. On a darker side‚ H.G. Wells’ 1898 novel The War of the Worlds portrayed an invasion of Earth by technologically superior Martians desperate for water. (1) In the early 1900s
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Introduction Water is necessary to life but it can be unhealthy too. In general‚ the water quality is poor in developing countries like Kenya. Water is a vector of diseases like yellow fever‚ diarrhea… Water purification is very important in these countries but people don’t have a lot of time to spare‚ they work or they are in the field and in general women must spend a significant amount of time walking to collect water. So we need to find a quick‚ easy‚ and economic solution that is as simple
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Environmental Science Water Pollution SUSTAINABILITY PLAN Action Items (in the correct order) Action Steps Timeline Research and identify the effects of water pollution. Research environmental issues such as water pollution by using web sites‚ journals and other possible sources of information. Document the sources of water pollution‚ noting both environmental and health effects of water pollution. Month 1-3 Develop an education program about effects. Create a presentation about why
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