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
André Lopes nº10265 International Management – 4th Case Study Summary – Fiji Water and Corporate Social Responsibility: Green Makeover or”Greenwashing”? 1. Introducing the Case The case traces the establishment and subsequent operation of FIJI Water LLC and its bottling subsidiary‚ Natural Waters of Viti Limited‚ the first company in Fiji extracting‚ bottling and marketing‚ both domestically and internationally‚ artesian water coming from a untouched ecosystem in the main of Fiji Islands. It takes us
Premium Social responsibility Corporate social responsibility Corporation
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
Premium Black people White people Race
Purification of Water Domestic: Distillation - In the process of distillation water is heated and evaporation takes place‚ whereby water changes back to water when cooled; this process is called condensation. The condensed water is the purest form of water‚ free from microbes‚ and impurities. Boiling - Boiling is the best and simplest method to purify water. After straining the water twice through clean muslin cloth‚ it is boiled for ten minutes lo kill the microbes present in it and also remove
Premium Water
Water is life. Water is the most important thing for survival. Without water it is impossible that a planet be inhabited. Wherever we have water we find life. Our planet earth has 70% water. Ther firt ever living creature was tiny aquatic organisms. Water also is the means by which human beings survive. Water plays a very important role in religions around the world. Water signify spiritual purity being used for praying. Water also helps in agriculture.Water is the most important thing for survival
Premium Religion Earth Water
Properties of Water Introduction: Water’s chemical description is H2O. As the diagram to the left shows‚ that is one atom of oxygen bound to two atoms of hydrogen. The hydrogen atoms are "attached" to one side of the oxygen atom‚ resulting in a water molecule having a positive charge on the side where the hydrogen atoms are and a negative charge on the other side‚ where the oxygen atom is. This uneven distribution of charge is called polarity. Since opposite electrical charges attract‚ water molecules
Premium Atom Water Electric charge
molecule of water A chemist’s view of the world is not as narrow as one might think! Yes‚ we start with the atom‚ and then go on to the rules governing the kinds of structural units that can be made from them. We are taught early on to predict the properties of bulk matter from these geometric arrangements. And then we come to H2O‚ and are shocked to find that many of these predictions are way off‚ and that water (and by implication‚ life itself) should not even exist on our planet! But we soon
Free Atom Electron Molecule
Sara Knigge The Color of Water Essay Racial Identity The Color of Water by James McBride was a story about a young boy trying to figure out his racial identity but his mother would not talk about her past or what race she was. All James knew was that she was white living in a black power neighborhood and that fact terrified him. He thought that to grow up he had to know his racial identity but through all the trouble and hard times he went through he learned that his race did not matter. It
Premium Black people Race White people
Cause and Effects of Water Pollution Water is a key resource on our planet and is undervalued by humans causing water pollution. Water makes up 70% of the earth and 60% of the human body‚ therefore the pollution of water is in need to come to an end because it is essential to all living aspects on earth ("Causes and Effects of Water Pollution…"). Water pollution is typically caused by littering‚ industrial waste‚ oil pollution‚ and primarily‚ by the human carelessness. It needs to be taken more
Premium Waste Causality Water
Brittany Roberts AP bio WATER ESSAY The first thing water reminds us of is the clear liquid in our water bottles. However‚ water is more than a normal substance. Water is the beginning and the continual of life on earth. Because of its many unique properties‚ water was able to start life on our planet. Water covers about 3/4 of the earth. In nature‚ water naturally exists in all three physical states of matter—solid‚ liquid and gas. Water’s extraordinary properties are emergent properties resulting
Premium Water Hydrogen Acid