For the past 8 years‚ I’ve lived in a centrally Caucasian dominant area‚ Cherry Hill‚ New Jersey. Starting in about 10th grade‚ I started to become interested in how many of my peers and friends in this area perceive black people and black culture as monolithic: they stereotypically imagine that all blacks are lazy‚ speak Ebonics‚ and "have an attitude". Throughout the course of my high school education‚ I was treated as "one of the exceptions"‚ meaning that to my white peers‚ and even black peers
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determination of Ascorbic acid Concentration in an Unknown Solution Introduction: The naturally occurring organic compound with antioxidant properties is Ascorbic acid shortly referred as (AA). Normally the color of Ascorbic acid is white‚ but in some cases of impure samples it appears yellow in color. Ascorbic acid is solid in state. In water it dissolves well to give mildly acidic solutions. Ascorbic acid is one form ("vitamer") of vitamin C [1]. So‚ Ascorbic Acid (AA) in other terminology
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Acid Base Titration bre’ana March 1‚ 2013 Purpose: The purpose of this experiment is to determine the concentration of a solution of NaOH by titration with a standard solution of HCl. It was also the purpose to determine the concentration of a sample of white vinegar by titration with a standard solution of NaOH. Introduction: Using the method of titration is how the experiment gets to the conclusion of the concentration of a solution. When doing this experiment‚ measurement is very important
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society. Technology has become more than a word to us; it is our friend‚ a reliable source with which we turn to whenever necessary. Our mobile devices can ruin us‚ as it has already ruined so many once-social individuals. We have the power to control how we handle our mobile devices and other electronics. Technology can ruin your life‚ but only if you let it. The truth is‚ we are a society addicted to our phones and we have the ability to unlock our obsession to our mobile devices if we resist from
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Canada has now been in Kandahar for almost six years fighting by the sides of the strongest country‚ the United States. The attacks of September 11‚ 2001 undoubtedly affected not only the United States but the rest of the world as well. Canada‚ being their neighbours‚ took an oath and stepped in. There‚ of course‚ are controversies facing Canada taking part in this war. Some being that we should stay‚ being as we are dependent on U.S.A. Others being we should withdraw because the people of Canada
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Program: Foundation In Science Unit code: FHSC 1214 Unit description: Fundamentals of Cell Biology Year and trimester of study: 2013‚ trimester 1 Title of lab report: Practical 2 Investigation of Action of Saliva and 3 M Hydrochloric Acid in Two Carbohydrate Solutions Lecturer’s name: Mr. Paul Davidson Discussion The name of enzyme involved in this experiment is salivary amylase‚ which presents in our saliva. Salivary amylase catalyses
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into compounds they can use. This process is called the Nitrogen Cycle. Heather McGraw‚ Mandy Williams‚ Suzanne Heinzel‚ and Cristen Whorl‚ Give SIUE Permission to Put Our Presentation on E-reserve at Lovejoy Library. The Nitrogen Cycle How does the nitrogen cycle work? Step 1- Nitrogen Fixation- Special bacteria convert the nitrogen gas (N2 ) to ammonia (NH3) which the plants can use. Step 2- Nitrification- Nitrification is the process which converts the ammonia into nitrite ions which
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with Sodium Salts of Carbonic Acid Introduction- This experiment is intended to help find a better understanding of chemical stoichiometry through titrations of NaHCO3 and NA2CO3 with HCl. A chemical reaction is a process that involves rearrangement of the molecular or ionic structure of a substance‚ as opposed to a change in physical form in a nuclear reaction. Titration is when a measured amount of solution of unknown volume is added to a known volume of a second solution until the reaction between
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the rate of a chemical reaction. Introduction: In my coursework I will be mainly concentrating on the reaction between dilute hydrochloric acid with marble chips (calcium carbonate). Calcium carbonate (marble chips) + hydrochloric acid ==> calcium chloride + water + carbon dioxide CaCO3(s) + 2HCl (aq) ==> CaCl2 (aq) + H2O (l) + CO2 (g) Aim: The aim of the experiment is to investigate how the concentration of hydrochloric acid affects the rate of reaction with marble chips‚ i.e. how quickly/how
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Observing Enzyme Activity Purpose: The purpose of this experiment was to test whether the pH affected the enzyme reaction rate. Hypothesis: If the enzyme is in a basic solution‚ then it will react faster because the enzyme (catalase) reacts better in basic solutions. Materials: 10 potato cubes (1 cm3) -Pipet Baking soda solution -50 ml glass beaker Bleach Water Lemon juice Vinegar 5 glass test tubes Drying rack Timer Graduated cylinder Hydrogen peroxide Procedure:
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