Edexel IGCSE Chemistry Revision Notes IGCSE Chemistry Triple Award Revision Guide Topic Introduction to chemistry Atomic Structure Structure and Bonding – Ionic Bonding Structure and Bonding – Covalent and Metallic Bonding Organic Chemistry - Alkanes Organic Chemistry – Alkenes / Addition Polymerisation Organic Chemistry – Alcohols / Condensation Polymerisation Calculations Periodic Table Reactivity Series and Metal Extraction Electrolysis Energetics Acids‚ Bases‚ Salts and Neutralisation Preparing
Premium Atom Covalent bond
Name__________________________ Chemistry 190: Organic Chemistry EXAM 3 Thursday April 21‚ 2011 1. (12) ______ 2. (14) ______ 3. (20) ______ 4. (12) ______ 5. (54) ______ 6. (16) ______ 7. (12) ______ 8. (10) ______ Total (150) ______ The exam consists of twelve numbered pages and an unnumbered cover sheet. Make certain that you have a complete exam. You will have two hours to work on the exam. No books or notes are allowed; however‚ you may use a molecular model set and a calculator
Premium Oxygen Chemistry Acetic acid
CHEMISTRY OF NATURAL PRODUCTS Terpenoids Sameena Bano Department of Chemistry Faculty of Science Jamia Hamdard New Delhi-110062 (24.09.2007) CONTENTS Introduction Classification of Terpenoids Isolation of mono and sesquiterpenoids General properties of Terpenoids General methods of structure elucidation Terpenoids Citral Menthol Camphor Eugenol Keywords Terpenes‚ isoprene‚ citral‚ menthol‚ camphor and eugenol 1 Introduction There are many different classes of naturally occurring
Premium Camphor Alcohol Carboxylic acid
of reacting increases; resulting in a greater amount of NaCO3 reacted and greater generation of CO2. Percent by mass of NaCO3 that has reacted can be determined by using mass difference and dimensional analysis to relate the amount of CO2 produced to the amount NaCO3. Collective class data are exhibited in Table 1‚ and Figure 1 renders the class findings in a plot. As shown in Figure 1‚ the percent by mass of Sodium Bicarbonate in the Alka-Seltzer tablet primarily increased along with the volume
Premium Acid Carbon dioxide Reagent
1. A student neglected to add sodium carbonate when extracting the tea leaves with hot water. Yet a very high yield of caffeine was obtained. The crystals melted at 202-214°C. Explain. • The sodium carbonate is supposed to be added when extracting the tea leaves with hot water in order to help purify the caffeine. So since the student neglected to add sodium carbonate the caffeine won’t be pure but the student would still be able to recover a large amount of caffeine. The literature melting point
Premium Chemistry Water Tea
INTRODUCTION: The purpose of this experiment is to measure the formation constant of the tetraamminecopper(II) ion by colorimetry. Anhydrous copper sulfate (CuSO4) is white‚ which means that it does not absorb light in the visible region of the spectrum. The hydrated copper sulfate (CuSO4 - 5H2O) is blue. The structure of the compound can be represented more accurately as Cu(H2O)4 SO4 - H2O where four water molecules are bound to the copper ion and the fifth is a water of crystallization. The
Premium Ammonia Chemistry Copper
looks at the vital things in our lives and the chemistry they are made of. You are what you eat. But do you recall munching some molybdenum or snacking on selenium? Some 60 chemical elements are found in the body‚ but what all of them are doing there is still unknown. Roughly 96 percent of the mass of the human body is made up of just four elements: oxygen‚ carbon‚ hydrogen and nitrogen‚ with a lot of that in the form of water. The remaining 4 percent is a sparse sampling of the periodic table
Premium Chemistry Chemical reaction Chemical element
Elizabeth Obuya MBA 651 HR Case Study: How about a 900 Percent raise? 1. Recruiting nurses abroad can be mutually beneficial or a disadvantage to both the U.S and the foreign country. Hiring ready to deploy and fully qualified nurses can help to temporarily bridge the nursing shortage until the government is assured the situation is in a better control. Also‚ according to Karen B. Haller‚ Vice President for Nursing and Patient Care Services at the Johns Hopkins Hospital‚ foreign recruitment creates
Premium Nursing Nurse
I) INTRODUCTION * Industrial Chemistry deals with the preparation of products from raw materials through the agency of chemical change * Chemistry is important to Industry by: * Regulating manufacturing processes * Quality Control * Research and Development * Sources of raw materials from the natural environment 1) Lithosphere –Earth’s Crust 2) Hydrosphere – Marine and Oceanic Environment 3) Atmosphere – Air 4) Plants – Biosphere * Classification of Natural
Premium Chemical reaction Ideal gas law Chemistry
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
Premium Nitrogen