primary (1°)‚ secondary (2°)‚ or tertiary (3°) alcohols depending on whether the -OH group is attached to a carbon with 1‚ 2 or 3 other carbon atoms attached to it. These different alcohols react differently with Lucas reagent and with Bordwell-Wellman reagent; hence these reagents can be used for identifying the class of alcohol. The relative acidity of phenols can be used to characterize this class of alcohols relative to the alkyl alcohols. This property will be exploited in the identification
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Group 5 Experiment No. 5 Classifications of Alcohols: Lucas Test Q1. REACTION OF PRIMARY‚ SECONDARY AND TERTIARY ALCOHOLS WITH LUCAS REAGENT ALCOHOL IMMEDITE REACTION WITH LUCAS’ REAGENT OBSERVATIONS AFTER 5 MINUTES AT 27 °C TO 28 °C n-butyl alcohol No reaction occurred Secondary butyl alcohol cloudy Tertiary butyl alcohol Cloudy appears Q2. REACTION OF SECONDARY AND TERTIARY ALCOHOLS WITH CONCENTRATED HYDROCHLORIC ACID ALCOHOL OBSERVATIONS Secondary butyl alcohol
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bromination procedures. In order to create the alkyl halides‚ which are able to undergo chemical transformations more readily than the carbon-carbon double bond‚ onto the trans-stilbene the addition process of halogenation in needed. The typical reagents that are used‚ such as elemental bromine and liquid bromine‚ are dangerous and highly corrosive‚ so this experiment used an alternative method of bromination.
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Investigation 3 Determine the Limiting Reagent Chemistry Investigation 3 Limiting Reagents Aim: To determine the limiting reagent in a reaction. Hypothesis: if the number of moles of the solutions added together equals the stoichiometry ratio in the balanced equation‚ then we would not expect a limiting reagent in the reaction. Independent variable: The number of moles of the reactants Dependent Variable: The limiting reagent Constant Variable: The volume of reactants added Equipment:
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with the Bluret reagent should come out positive for being a protein. The pepsin in the Bluret reagent should be positive and should be a protein. The test for sugar in the Bluret reagent should be negative and I don’t think it is a protein. The test with the distilled water with the Bluret reagent should be negative and is not a protein. In the second experiment to test for glucose with the Benedict reagent sugar should be positive for glucose. Starch mixed with the Benedict reagent is probably
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the addition reaction of Gridnard reagent and carbonyl compound‚ whereas aldehyde is the most reactive and then to ketone or ester. Primary alcohol is produced through reaction between Gridnard reagent and formaldehyde or ethylene oxide or alcohol halide; secondary alcohol is produced using Gridnard reagent and aldehyde or carboxylate; while tertiary alcohol is produced using Gridnard reagent and ketone‚ ester‚ chloride or unsaturated ester etc. Gridnard reagent is prepared by reaction between Mg
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reaction of the phenylmagnesium bromide with the carbonyl compound. However‚ before any of this could be done‚ the refluxing apparatus for the Grignard reaction was to be flame dried until no moisture remained inside because any water would cause the reagent to decompose and an alkane to form. The reaction would subsequently fail. Drierite was placed inside a plastic drying tube as a drying agent‚ absorbing all the moisture from the solvents that would later be refluxing in the apparatus and coming out
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The reagent‚ a mixture of (mainly) copper sulfate and sodium hydroxide‚ is called Benedict’s reagent. It can be purchased from many drug stores because it was once the standard test for sugar in the urine of diabetics. Some of the solution to be tested (this could be the juice or extract of the fruit or vegetable in question) is mixed with Benedict’s test reagent (by volume‚ usually about 4 solution to 1 reagent) and heated almost to boiling. A color change from the blue of the reagent to almost
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The Role Catalysts In Chemical Reactions‚ Their Importance In Industry‚ Problems and New Developments OXFORD AND CAMBRIDGE SCHOOLS EXAMINATION BOARD. General Certificate Examination - Advanced Level Chemistry (Salters’) - Paper 3 mock. ROBERT TAYLOR U6JW. A Catalyst is a substance that alters the rate of a reaction. The catalyst remains unchanged at the end of the reaction. The process is called catalysis. In this report I aim going to explain the role of catalysts in chemical reactions and their
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Synthesis of Banana Flavor via Fischer Esterification Patricia Faye R. Agnila‚ Joan Karla M. Alvaran*‚ Micaela Isabel N. Arellano‚ and Denzel Nicho T. Armendares Department of Biological Science‚ College of Science‚ University of Santo Tomas‚ Manila‚ Philippines Abstract This experiment is conducted to exhibit the synthesis of banana
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