Recrystallization Abstract: Technical grade aniline was reacted with acetic anhydride to give acetanilide a dark brown color‚ due to the presence of impurities. Crystallization of the crude product from water was combined with decolorization with activated carbon‚ furnished pure acetanilide as white flakes‚ melting point 112-115°C‚ yield 70.3%. Experimental: 2 grams of technical grade aniline and 15ml water were placed in a 125ml Erlenmeyer flask. Then‚ 2.5ml of acetic anhydride was added while swirling
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of organic carbon compounds that contain‚ primarily‚ carbon and hydrogen. Whereas the organic compound can contain other elements‚ the bond between carbon and hydrogen are what makes a compound organic. The original organic chemistry was defined the study of compounds by living organisms. Inorganic chemistry is the chemistry that deals with the properties and behavior of inorganic compounds. Inorganic compounds are those that are not biological‚ and not containing any hydrogen and carbon bonds. We
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Associate Program Material Levels of Life Worksheet Complete all three parts of this worksheet. Part I: Atomic Structure – Fill in the missing information on atomic structure and organic compounds. |Atomic Structure | |Subatomic Particle |Charge |Location in an Atom
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renewable and nonrenewable energy resources including cost‚ environmental effects‚ and availability. Lesson 08.05: Carbon Chemistry · Define and compare inorganic and organic chemistry. · Compare diamonds and graphite in terms of bonding and properties. · Describe the properties of the carbon atom that allow it to form such a wide variety of compounds. · Identify the basic steps in the carbon cycle. · Describe and identify the functional groups
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Discovered in 1887‚ this is a carbon-carbon bond making reaction. The result of the Michael addition is a 1‚4 addition of a nucleophile to an alpha‚ beta-unsaturated carbonyl carbon compound. A 1‚4 addition is also commonly referred to as a conjugated addition. Another result of this reaction is a 1‚2 addition of a nucleophile. Some of the common attacking nucleophiles used in this reaction are enolates. Enolates‚ a negatively charged oxygen with an adjacent carbon-carbon double bond‚ will react with
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distinct from other branches‚ such as inorganic and physical chemistry. It can be described as the chemistry living processes (often referred to as biochemistry) but extends beyond that. It focuses almost entirely on the chemistry of covalently bonded carbon molecules and as well as life processes‚ it includes the chemistry of other types of compounds‚ including plastics‚ petrochemicals‚ drugs and paint. The early chemists didn’t think they would ever be able to make the sort of chemicals involved
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NANOTECHNOLOGY the Future of Architecture What is Nanotechnology? And how it serves in the improving progress of architecture? Nanotechnology is the engineering of functional systems at the molecular scale. This covers both current work and concepts that are more advanced. In its original sense‚ ’nanotechnology’ refers to the projected ability to construct items from the bottom up‚ using techniques and tools being developed today to make complete‚ high performance products. Nano technology
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effectively is known as ________. 8. Using the rules for chemical notation‚ write the molecular formula for gkucoze‚ a compound composed of 6 carbons atoms‚ 12 hydrogen atoms and 6 oxygen atoms. 9. Indetify and describe three types of chemical reactions important to human physiology. 10. In cells‚ glucose‚ a six-carbon molecule‚ is converted into two thee-carbon molecules by a reaction that releases energy. How woud you classify this reaction? 11. What is an enzyme? 12. Why are enzymes needed in our
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NATIONAL DIPLOMA IN ENGINEERING UNIT 10 – PROPERTIES AND APPLICATIONS OF ENGINEERING MATERIALS ASSIGNMENT 1: Structures and Properties of Engineering Materials. Special attention should be paid to the Grading Criteria‚ as this will influence the way you answer each of the tasks. For each question all tasks need to be answered correctly to achieve the relevant criteria. Question 1: (P1) With the aid of clear‚ annotated diagrams‚ describe the structure associated with the following engineering
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bond between a metal and a carbon. There are three types of carbon-metal bonds: ionic‚ polar covalent‚ and covalent. The ionic bonded compounds (example: RNa) have a weak bond between the carbon and the metal‚ and are therefore not useful because they are so volatile‚ and they will react with nearly anything. The covalent bonded compounds (example: R2Pb) are toxic. The compounds that are polar covalent bonded are Grignard reagents and are useful in making carbon-carbon bonds and reducing carbonyls
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