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
Premium Calcium Water Hard water
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
Premium Drinking water Escherichia coli Bacteria
Pokhara Abstract Water‚ a basis of survival of all living organisms is also considered as the basic pre-requisite of development. Being second richest country in water resources‚ Nepal is gifted by Himalayan ranges in the north with ever flowing snow melted rivers and fresh water springs with huge power of producing energy and fetch out drinking water to the people. Similarly‚ no any economic as well as socioeconomic developments are possible without availability of water. Specially‚ Nepal and
Premium Water Water resources Water supply
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
Premium Calcium Hard water Water
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
Premium Water pollution Water
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
Premium Water Water quality
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
Premium Titration Water Erlenmeyer flask
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
Premium Spectroscopy Titration Laboratory glassware
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
Premium Water Boiling Cooking
Water conservation From Wikipedia‚ the free encyclopedia United States postal stamp advocating water conservation. Water conservation encompasses the policies‚ strategies and activities to manage fresh water as a sustainable resource‚ to protect the water environment‚ and to meet current and future human demand. Population‚ household size and growth and affluence all affect how much water is used. Factors such as climate change will increase pressures on natural water resources especially in manufacturing and
Premium Water Irrigation Water conservation