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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EXPERIMENT 1: WATER CRYSTALIZATION OBJECTIVES: To determine the percentage of water in aluminium sulphate hydrate To calculate the water of crystallization for aluminium sulphate hydrate To prove that a hydrate solution will lose some of it mass after heated INTRODUCTION A hydrated salt is a crystallize salt molecule that is weakly attached to a certain number of water molecules. Salt is created when an acid’s anion (negative ions) and a base’s cation (positive ions) are combined to produce
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increasing population and rapid economic growth as well as lax environmental oversight have increased water pollution. Therefore‚ deterioration of drinking water quality continues to be a major problem. Continuous emissions from manufacturing are the largest contributor to lowered drinking quality across the country. China’s major river systems exhibit the scope of the problem. Perhaps 70 percent of their water is so polluted that it has been deemed unsafe for human contact. In addition to untreated sewage
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Some children have difficulties accepting their race. In “The Color of Water” written by James McBride covers the story of a biracial man that is trying to find out more about his white mother. Throughout the book James McBride discusses how racism and acceptance from people can be difficult. In the text “The Color of Water”‚ racial tensions has had an effect on James mother Ruth’s along with James and other individuals who have dealt with being biracial while looking to being accepted in their
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Properties of Water are Important in the Functioning of the Human Body Student Name: Eleanor Thoms Student Number2989 Date: 10.04.14. Skills and areas for development that were targeted in this assignment: Links to the Properties of Water Internet Research (I am living in Singapore so library option is limited) There has been much debate over the years about the amount of water the human body needs to survive and maintain optimum health. Howard cites that “Water is a basic nutrient
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instruments they should use for sampling of water sample. * To expose the students the proper technique to measure the water. * To give the students experience with sampling of water sample. Introduction Pollution can be defined as a harm to the environment which can cause a lot of bad consequences to human health‚ living resources and ecological. Thus‚ pollutants can be gain from many sources and can take many forms. The pollutants can contaminate land‚ water or air. In order to identify types
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Information………………………………………………...5-6 Hypothesis…………………………………………………………………….7 Materials……………………………………………………………………….8 Procedure……………………………………………….........................9-10 Data Collections/Results………………………………………………11-14 Analysis…………………………………………………………………...15-16 Discussion/Conclusion…………………………………………………….17 Possible Sources of Error…………………………………………………..18 Acknowledgments………………………………………………………...19 References………………………………………………………………….2 ABSTRACT What is the fastest way to cool a soda? In this experiment‚ 8 cans
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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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Making Water Turbines Most Energy Efficient How does a wind turbine’s output vary with wind pressure (height of water)‚ the flow rate‚ size of the motor‚ and type of blade? Introduction There are many types of energy used today: Fossil fuels‚ coal‚ nuclear energy‚ solar energy‚ geothermal energy‚ hydrogen energy‚ hydroelectric energy‚ wind energy‚ and biofuels and biomass. Non-renewable energy sources such as fossil fuels and coal are diminishing since it cannot be recycled‚ unlike wind energy
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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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