The purpose of this experiment was used to identify the chemical changes a substance undergoes by knowing some of its chemical properties like (Change in color‚ producing bubbles and gas‚ precipitation‚ conductivity). The aim of today’s lab was to help us identify different households and their components‚ they contained whether they were acid/ base‚ because most of the households are based on those solutions like (i.e. Acetic acid = Vinegar = CH3COOH can be used in cooking) or bases solutions
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C7 Further Chemistry OCR 21st Century: 2011 specification Made by Nabilah Chowdhury Copyrighted References: OCR 21st Century Further Sciences Book‚ CGP: OCR 21st century + various internet sources Topic 1: Green Industry Brief Intro 14/06/13 Natural resources are converted into useful products. Bulk chemicals produced on a large scale b/c there is a larger demand for them. Fine chemical are produced on a smaller scale. They’re used as feedstock’s
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Acids And BAses Acids And BAses 8.1 8.2 8.3 8.4 18.1 18.2 18.3 18.4 18.5 Theories of acids and bases Properties of acids and bases Strong and weak acids & bases The pH scale Calculations involving acids and bases (AHL) Buffer solutions (AHL) Salt hydrolysis (AHL) Acid-base titrations (AHL) Indicators (AHL) 8 8.1 THeORies OF Acids And BAses 8.1.1 Define acids and bases according to the Brønsted–Lowry and Lewis theories. 8.1.2 Deduce whether or not a species could act as a Brønsted–Lowry
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about this group. (4) a. b. c. Class Website: http://teachersites.schoolworld.com/webpages/KGoldsmith/ 8. Highlight the metalloids on the Periodic Table below. Provide three characteristics about this group. (4) a. b. c. 9. Highlight the alkali metals on the Periodic Table below. Provide three characteristics about this group. (4) a. b. c. Class Website: http://teachersites.schoolworld.com/webpages/KGoldsmith/ 10. Highlight the alkaline-earth metals on the Periodic Table
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or if there were exceptions. Results: See table below Discussion: I formed an idea of different ionic reactions and how they can differ. Questions: B. Yes C. Carbonates‚ Phosphates‚ sulfides‚ oxides or hydroxides form precipitates. Alkali metal hydroxides are the exceptions. D. Most salts. E. Group one and two cations F. A1. Cobalt nitrate with Sodium phosphate. CO(NO3)2+6 H2O+Na3PO4+12 H2O Na3+PO2Co(NO3)2+18 H2OD5. Ba(N03)2 - NaHC03 A7. Cobalt nitrate with sodium hydroxide
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respected oxides and hydroxides ? Give examples and balanced equations for each.Explain each in detail. 5. Name the methods of preparation of hydrogen by various ways. 6. Give balanced equations for the preparation of hydrogen with any three acids‚alkalis 7. Why is nitric acid not used in the preparation of hydrogen from metals? 8. Why cannot lead be used in the preparation of hydrogen using dilute acids? 9. Define and give example of Amphoteric 10. Draw and explain the laboratory preparation of
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my trip to shimla was the best man!! we had so much of fun in shimla and also great Essays for Science: Chemistry Building Blocks of Science THE periodic table of the elements—the 96 metals‚ nonmetals and gases that form everything in the material universe— is the blueprint of the atomic future... Calorimetry: Specific Heat and Heat of Solution Summary These experiments were conducted to find the specific heat of a metal as well as the heat of solution of a solid. Both experiments required
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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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Review Sheet Exercise 10 Acid/Base Balance NAME 1. Match each of the definitions in Column A with the appropriate description in Column B. Column A Column B F 1. pH E 2. acid D 3. base A 4. acidosis B 5. alkalosis C 6. carbon dioxide a. condition in which the human body’s pH levels fall below 7.35 b. condition in which the human body’s pH levels rise above 7.45 c. mixes with water in the blood to form
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kneading‚ the dough will be cut and formed into desired shapes for the final product. It is important to flour the dough and the surface to keep it from sticking when the forming it into the desired shape (Breslauer and Kaletunc‚ 2003). Cooking in Alkali (Baking Soda) Solution Dipping the pretzel dough in a solution of a small amount of food grade lye gives it that distinct pretzel flavor. However‚ food-grade lye is mostly unaivalable in retails stores. An alternative to lye is baking soda which
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