WATER RESOURCES Water is an essential element to our everyday existence. Its role is vital in the sustenance of all life forms‚ as well as in agricultural‚ industrial‚ households‚ recreational and environmental activities. As population continues to rise‚ so does the demand for fresh water too. Water is a major factor shaping the natural environment. It has a long-term influence on the vegetation‚ fauna‚ and shape of the landscape and on various ecosystems. 1‚830 SQ KILOMETERS OF PHILIPPINE
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English 3 Research Paper Water Pollution: A Global Problem In 2009‚ the International Coastal Cleanup (ICC) collected 3.4 million kg of marine debris worldwide; 10.2 million individual pieces of rubbish in 108 countries. Water pollution is everywhere and is a continuing problem caused by our careless behavior‚ which needs to be stopped. It is affecting people as well as animals all around the world. First‚ water pollution causes many problems all over the world that effect marine life as
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Complexometric Determination of Water Hardness by EDTA Titration Bonnie Abella Dr. Asmita Kane Budruk 2/09/2014 Abstract: the complexometric EDTA titration was used to determine the salt substance in the water. This technique for the unknown sample 154 produced a water hardness of 8.43 x105=mg/L CaCO3 from the collected data which corresponds to the typical value from the city of Tempe. Introduction When the water from the rain collects impurities by dissolving the
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food and water. In A. Balows et al.‚ eds.‚ Rapid Methods and Automation in Microbiology and Immunology. Proc. 5th Intl. Symp. on Rapid Methods and Automation in Microbiology & Immunology‚ Florence‚ Italy‚ Nov. 4 – 6‚ 1987. FIEDLER‚ J. & J. REISKE. 1990. Glutaminsauredecarboxylase-schnelltest zur identifikation von Escherichia coli. Z. Ges. Hyg. Grenzgeb. 36:620. SHADIX‚ L.C. & E.W. RICE. 1991. Evaluation of -glucuronidase assay for the detection of Escherichia coli from environmental waters. Can. J
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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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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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1.0 WATER QUALITY LESSON OUTCOME: * To identify the physical water quality parameters such as suspended solids‚ turbidity‚ color‚ taste and odor and temperature. * To calculate the solids parameter * To identify the chemical water quality parameters such as total dissolved solid‚ alkalinity and hardness * To calculate the water alkalinity and hardness * To demonstrate the biological water quality parameters such as pathogens and indicators Water Quality Parameter
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Complexometric Determination Of Water Hardness By Angelica Aquino CHM 152 LL January 5‚ 2013 METHODS: 1. Prepare an approximate 0.004 M disodium EDTA solution. To prepare this solution‚ weigh about 0.7-0.8 g of Na2EDTA and dissolve in 500 mL deionized water in your plastic bottle. Make to to shake the bottle to dissolve the salt. 2. Obtain a 250-mL Erlenmeyer flask and transfer a 10 mL of CaCO3 using a buret into the flask. 3. Measure 30 mL of deionized water and add it into the titration
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glass rod ‚volumetric flask 100ml ‚dropper CHEMICALS Potassium permanganate (KMnO4)‚ distilled water PROCEDURE A. Preparation of the KMnO4 standard solution 1. KMnO4 was weigh accurately to nearest mg. The reading was recorded. The solid transfer to a 100ml volumetric flask using funnel. 2. The solid was dissolved with distilled water. The flask was shaken after using stopper. Distilled water was added to the mark ‚the dropper was used when reaching the last drop. The flask was stopped using
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of oil is added to a hot wok and a chicken is stirred fried until cooked. I stir fry the chicken in three separate lots so the chicken cooks quickly and does not get too much water in it. Chicken is set aside and heat is turn off temporarily. After that‚ a kettle is filled with water and boil. You will use this boiling water to soak the rice noodles. One tablespoon of oil vegetable is added to the wok‚ and the paste is stirred fried for about 2 minutes. This releases all the flavours of the Laksa
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