Flame test: AIM: To determine which part of the salt is responsible for the characteristics in the flame. HYPOTHESIS: If we introduce a metal salt in the blue flame of the Bunsen burner‚ then the colour given off by the flame is due to the metal part of the salt. METHOD: (1) With a heat proof mat under the Bunsen burner‚ turn the gas on and light up the Bunsen burner with matches. (2) Pour enough Hydrochloric acid into a beaker. (3) Using your wire‚ dip it into the beaker containing Hydrochloric
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The poem‚ "Suicide Note‚" by Janice Mirikitani‚ depicts an Asian-American female college student who committed suicide by jumping out of her dormitory window. Her last words‚ thoughts‚ and feelings were left behind in a suicide note‚ describing why this had to happen. This was a tragic accident that should not have happened‚ in fact‚ it should have been prevented. What drove this college student to kill herself? Was it her fault‚ or was she pushed so far that it became too much for here to take
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Synopsis The purpose of this experiment was for students to prepare some simple organic compound and to purify the compound by recrystallisation. This experiment allowed the students to conduct the synthesis of aspirin‚ acquire the skills of recrystallisation using normal filtration and reinforce the technique of the melting point determination. The method used to synthesize aspirin was esterification by reacting salicylic acid with acetic anhydride with the presence of dehydrating agent‚ conc
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Part One (Flame Test) 1. Create and complete a data table for Part One of the lab. It should include the name of the element (or unknown) examined and the color of the observed flame. Solutions Names Known 1 Barium Known 2 Calcium Known 3 Sodium Known 4 Rubidium Known 5 Potassium Known 6 Lithium Unknown 1 Sodium Unknown 2 Potassium 2. Identify each unknown from Part One of the lab and briefly explain why you identified each unknown as you did. The first unknown from part one from this virtual lab
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Colton Kuhlers Chemistry Paper Organic vs. Non-Organic What should I eat‚ organic or non-organic? This has been is hot topic a lot now that the United States is trying to go healthy. For years people have been researching which is healthier‚ more economical‚ and the most available than the other. It is hard to know what to buy when one researcher says organics better and another researcher says non-organics better. Let me take this topic into more depth to explain myself. First‚ let’s me describe
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Title: to get organic food Specific purpose: Organic food advocates claim that organically grown foods are safer and more nutritious than foods raised with non-organic methods such as pesticide and non-organic fertilizer use‚ or antibiotic and hormone use. Thesis statement: Many people just don’t trust these chemicals and don’t want to put them into their bodies. Since virtually all non-organically produced foods contain residues of pesticides‚ fertilizers and other chemicals‚ the only way to
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Chapter 3 1. 1 atom of X = atomic mass (amu) 1 mole f X=atomic mass in grams 1 mole of something = 6.022 x 1023 units of that substance 1 mole of a compound =66.022 x 1023 atoms 6.022 x 1023 amu =1 g 2. What is the mass of 6 atoms of Fe? Answer: 6 atoms of Fe x 55.85 amu÷atom of Fe x 1 g of Fe÷6.022 x 1023 amu = 3. How many atoms does it take to make 1 g of Gold (Au)? Answer: 197.0 g Au =1 mole of Au
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Use this packet and your book to answer the questions throughout this packet. Organic Nomenclature - Alkanes‚ Alkenes‚ Alkynes Naming organic compounds can be a challenge to any chemist at any level. Historically‚ chemists developed names for new compounds without any systematic guidelines. In this century‚ the need for standardization was recognized. For simple molecules‚ the nomenclature system worked out by the International Union of Pure and Applied Chemists (IUPAC) works well. For complex
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Chemistry 2283g Experiment 1 – Alkyl Halides EXPERIMENT 1: Preparation and Reactivity of Alkyl Halides Relevant Sections in the text (Wade‚ 7 ed.) • 6.7 (p. 228) Reactions of alkyl halides • 6.8 – 6.12 (p. 229 – 242) The SN2 reaction: generality‚ factors affecting SN2 reactions‚ substrate reactivity‚ mechanism • 6.13 – 6.14 (p. 243 – 249) The SN1 reaction: mechanism‚ stereochemistry General Concepts The most common of the variety of methods available for preparing alkyl halides is the replacement
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The article ’Showing Off’ by the Scottish writer Janice Galloway describes how she overcame obstacles in her life to become a writer and shows that even if you are not blessed with the best oppurtunities in life and suffer from prejudice‚ it is still possible to achieve your goals. Through the clever use of language and technique‚ Galloway presents her writing in such a way that it has a great deal of inspirational impact on the reader. In order for a text to be inspiring‚ it must be written in
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