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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Egg Drop The purpose of this lab‚ was to create a device to help an egg survive the fall from a fire truck without breaking. In this lab I used a beer holder and cotton balls and a gel pillow to help the egg survive the fall. My procedure was to put a few cotton balls in the beer holder then I put my egg in it‚ next I filled the rest of the holder with cotton balls. Finally I taped the beer holder to my weighted pillow and it weighed around 490g. My results concluded that my egg hit to hard
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Water Polo What is Water Polo? Water polo‚ or Water ball‚ is a team water sport. The playing team consists of six field players and one goalkeeper. The winner of the game is the team that scores the most goals. Game play involves swimming‚ treading water‚ players passing the ball while being defended by opponents‚ and scoring by throwing the ball into a net defended by a goalie. Water polo is very similar to handball on land. Basic Skills Water Polo is a team water activity requiring swimming
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15 Problem: Can water float on water? Introduction: Can water float on water some say ye because ice can float but we are talking about water on top of water. The salt water and fresh will have different effects on the experiment. The experiment also see if the warmer the water is the different way it look. Purpose: The reason that I am doing this project is to see if water can float on water and to see the water at different densities‚ and salinity. To see if the salt water would sit on the
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of Alcohol vs. Caffeine on Water Flea ’s Heart Rate. Title Page Abstract For our most recent experiment we tested the effects of immersing water fleas in caffeine and alcohol to see the effects on their heart rate. Before the experiment we hypothesized that if you place the water fleas in alcohol then their heart rate will slow down‚ and if you place them in caffeine then their heart rate will raise. For this experiment we needed water fleas‚ tap water‚ two pipettes‚ a microscope
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Wastewater Wastewater is any water that has been adversely affected in quality by anthropogenic influence. It comprises liquid waste discharged by domestic residences‚ commercial properties‚ industry‚ and/or agriculture and can encompass a wide range of potential contaminants and concentrations. In the most common usage‚ it refers to the municipal wastewater that contains a broad spectrum of contaminants resulting from the mixing of wastewaters from different sources. Sewage is correctly the
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HARDNESS IN ILARA COMMUNITY DRINKING WATER TABLE OF CONTENT. ABSTRACT INTRODUCTION MOTIVATION LITERATURE REVIEW PROBLEM STATEMENT EXPERIMENT RESEARCH QUESTIONS DISCUSSION CONCLUSION ABSTRACT This project was done to determine the total hardness of ilara mokin water to show the usefulness of hard water in industries‚ environmental and social links. INTRODUCTION: WHAT IS HARDNESS OF WATER: It is when water passes through or over deposit
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Paper Assessment of New York Tap Water vs. Deer Park Bottled Water MGMT 650 July 25‚ 2011 Turnitin Score: % Purpose: There have been debates over the years on whether people prefer bottled water over tap water. If you step into an office somewhere in the corner or up against the wall is stacks of large blue containers consisting of water. This debate begins with two sides and often times someone would state that “I never drink tap water” or “Tap water is good for you plus it’s no different
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water exists in liquid‚ solid‚ and gaseous states water referred to universal solvent ( bipolar molecule enables it to dissolve a wide variety of substances) ice floats ( temperatures drop molecules come together as a solid‚ elections repell (the molecules get less close thus making the ice have less density than water. If this did not occur ice could sink and destroy living organism. (sea animals) Thermal properties Water resist temperature change‚ due to high specific heat which in turn helps
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Columbia Encyclopedia‚ water pollution is defined as contamination of water resources by harmful wastes. In most cases this contamination is a result of people overloading the water environment with wastes. The scope of this problem covers any and all water sources including but not limited to streams‚ lakes‚ underground water‚ bays or oceans. II. Statement of Problem It is no misconception that water is a necessary compound to all life on Earth. Absolutely all organisms need water in one form or another
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