Complexometric Determination of Water Hardness Mike Monaghan CHM 152LL 01/27/2013 Abstract: What can be found from this experiment is as follows‚ Introduction/Background: This lab was about determining water hardness. Water hardness is the amount of metal ions in the water. The most common found ion in the water is calcium ions and typically with a charge of +2. Water hardness plays a big significance in our daily life because to many metal ions in our drinking water can have adverse
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Mg2+ Determination using EDTA Linh Nguyen Chem 1212L – 165 Feb 08 ‚ 2014 Purpose and Procedure: The purpose of this experiment is using Compleximetric titration and EDTA to determine the concentration of Mg2+ in solution; and also calculating the percent by mass of MgO in the unknown sample. This procedure results no significant deviations. The procedure for the experiment is from the lab manual referenced below Laboratory Experiments for Chem 1211L & 1212L (6e)
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can reduce their risks. Instead of foods that are good for them‚ people often eat hamburgers‚ cheese‚ French fries‚ and pizza. These common foods contain large amounts of saturated fat‚ which is the worst kind of fat. Though light and fat-free products are constantly being introduced to the consumer market‚ many people still buy food that contains fat because it often tastes better. However‚ eating fatty food can increase a person’s chances for some kinds of cancer. People do not eat as many fresh
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IODIZED SALT 1.1. Origin of the report: The main reason for preparing this report is to fulfill the requirement of our business communication course in first semester. Another important reason is to determine the consumer characteristic of ACI iodized salt. Salt is the most important element of cooking. Due to actions taken by the different health care organizations‚ people are being more and more aware of the importance of using iodized salt. People are looking forward to buy a product on which
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Comparison of “The Boat” and “The Lost Salt Gift of Blood” “The Lost Salt Gift of Blood” and “The Boat” are both compelling stories that illustrate the dilemmas associated with familial obligations‚ living with choices‚ as well as the conflict between traditional values and a modern; however‚ overall “The Boat” presents them in a more honest and effective manner. “The Lost Salt Gift of Blood” focuses on a grown man who is returning to a small fishing village in which his son lives‚ as he attempts
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Chemistry 121 Experiment 19 Molar Mass Determination y Depression of the Freezing Point Introduction: The most commonly used liquid is water. In this experiment we study the equilibria that can exist between pure water and an aqueous solution‚ and ice‚ the solid form of water. The heat will transfer from a higher temperature to a lower temperature. In order for water to change states of matter‚ it takes a certain amount of kinetic energy or heat. The shift from ice to water (solid to a liquid)
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DETERMINATION OF SAPONIFICATION AND IODINE NUMBERS OF SOME LIPIDS A.L. ASCANO1 C.V. OPONDA1 1INSTITUTE OF BIOLOGY UNIVERSITY OF THE PHILIPPINES‚ DILIMAN‚ QUEZON CITY‚ PHILIPPINES DATE PERFORMED: FEBRUARY 19‚ 2013 INSTRUCTOR’S NAME: FRANCESCA N. BELTRAN _____________________________________________________________________________________ ABSTRACT _____________________________________________________________________________________ INTRODUCTION Lipids are long aliphatic hydrocarbon chains
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The pH of various mixtures and find the dissociation constant of acetic acid Chemistry (HL) Research Question: To determine the pH of various mixtures of sodium acetate and acetic acid in an aqueous solution and hence to find the dissociation constant of the acetic acid. Background: The mixture of sodium acetate and acetic acid in aqueous solution is a buffer solution. Buffer solutions are the solutions which resist a sudden change in the pH due to addition of small amounts of strong acid or base
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Practical 3 ________________________________________________________________________ To find the force constant of a spring Objectives: To study the application of Hooke’s Law. To study the forces in equilibrium. To study the resolution of vector quantities. Apparatus and Materials: 1. Spring 2. Plumb-line 3. Protractor 4. Slotted masses 100g with hanger 5. Thread 6. Retort stand 7. Nail or pin Setup: 1. Set up the apparatus as shown in Figure 4-1 below. 2. Adjust the spring
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Title of the Experiment: determination of densities Introduction The density of a sample of matter represents the mass contained within a unit volume of space in the sample. For most samples‚ a unit volume means 1.0 ml. The units of density‚ therefore‚ are quoted in terms of grams per milliliter (g/ml) or grams per cubic centimeter (g/cm3) for most solid and liquid samples of matter. Density is often used as a point of identification in the determination of an unknown substance. The density
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