considerations. First‚ there is a question of regioselectivity. Second‚ anthracene and its derivatives are highly visible under UV light. Session 2: In this lab‚ we will complete a partial conversion of 9-acetylanthracene using m-chloroperoxybenzoic acid (mCPBA). We will also determine by NMR‚ the regiochemistry of the reaction. B. Chemical Properties: acetyl chloride CAS #75-36-5 Appearance: colourless to light yellow liquid with a pungent and choking odour Melting point: -112 C Boiling
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Evelyn Ramos CHEM LAB 201-003 Professor Ruddock Experiment #4 - Chemical Reactions Performed: 3/6/13 DUE: 3/13/13 Pre Lab Questions: 1. Before you can write a chemical equation‚ what must you know? You have to know what the products and reactants are. 2. What observations might you make that suggest that a chemical reaction has occurred? If a gas is produced or precipitates are formed that indicates chemical reaction. Also‚ if color changes occur or
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GROUP MEMBERS: VIMAL SIEWNARINE - #52844 JASON MATHURA - #60927 FIDEL MENDOZA- #56834 BRAD NANDO- # VIMAL BALAY - #52555 CRISTINA LUTCHMAN -#52516 LAB #1‚ #2‚ #3‚ #4 CHEM 2006 -ANALYTICAL INSTRUMENTATION LECTURER – MRS. TRICIA JONES LAB 1 TITLE: Organic Compound Identification Using Infrared Spectroscopy Aim: To identify the functional groups in organic compounds using infrared spectra. APPARATUS AND REAGENTS: Nicolet 380FTIR
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Unsterile person include: Anesthesiologist Circulating Nurse 3. If in doubt about the sterility of anything consider it unsterile. Ex. If you needed to use HCL and you have seen it already has a different color‚ remember that hydrochloric acid should always be colorless so if you have seen it otherwise then you should doubt its sterility and consider it unsterile. Another example would be if an HCL bottle does not have an expiry date‚ then doubt its sterility and consider it unsterile
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is methylphenoxyacetic acid‚ a phenolic ether that is prepared from a methylphenol (cresol) and chloroacetic acid. The methylphenoxyacetic acid family is of interest for several reasons: 1) The products are easily prepared crystalline solids‚ which serve as solid derivatives whose melting points can be used to identify the liquid phenol starting materials. 2) Several well-known herbicides are members of this class of compounds‚ especially 2‚4-dichlorophenoxyacetic acid (2‚4-D) and 2‚4‚5-trichlorophenoxyacetic
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Synthesis of t-Pentyl Chloride Introduction: Using SN1 reaction mechanism with hydrochloric acid‚ t-Pentyl alcohol was converted to t-Pentyl chloride in an acid catalyzed reaction. The reaction took place in a separatory funnel designed to separate immiscible liquids. The crude product was extracted by transferring a solute from one solvent to another. The process of washing the solutions by phase transfer was used in order to remove impurities from the main solvent layer. Finally‚ the crude
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The sysnthesis of t-Pentyl Chloride from alcohol. Procedure: Preparation of t-Pentyl Chloride. In a 125-mL separatory funnel‚ place 10.0 mL of t-pentyl alcohol (2-methyl-2-butanol‚ MW _ 88.2‚ d _ 0.805 g/mL) and 25 mL of concentrated hydrochloric acid (d _ 1.18 g/mL). Do not stopper the funnel. Gently swirl the mixture in the separatory funnel for about 1 minute. After this period of swirling‚ stopper the separatory funnel and carefully invert it. Without shaking the separatory funnel‚ immediately
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positive control group. If NaCl was a buffer than the pH would be stabled as the sodium phosphate buffer. If NaCl was not a buffer than the pH would fluctuate like the negative control‚ water. During the first trial and prior to the drops of 0.5 M of HCl acid‚ the pH of sodium chloride was 7.50. After the addition of 5 drops of 0.5 M of HCl‚ the pH decreased by 4.83 and ended at 2.67 on the pH scale. When comparing the results of the sodium chloride to the control groups‚ the total pH change of sodium phosphate
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soda‚ NaHCO3‚ is used to cause a cake to “rise”. When a weak acid such as vinegar‚ or buttermilk‚ or lemon juice is added to the baking soda‚ bubbles of carbon dioxide are produced. For example HC2H3O2 + NaHCO3 → H2O + CO2 + NaC2H3O2 Vinegar sodium sodium Bicarbonate acetate This release of gas is what causes the cake to increase in size. However‚ because baking soda tastes bitter and acids taste sour‚ it is important to add them close to their reacting
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Discussion The acid neutralising capacity (ANC) of 3 brands of calcium carbonate (CaCO3) tablets was determined by reacting the tablets in excess standardized hydrochloric acid (HCl) and then back-titrating with a standardized sodium hydroxide (NaOH) solution. Back titration was required for two reasons. Firstly‚ CaCO3 tablets are poorly water-soluble but dissolve rapidly in acid. Secondly‚ CaCO3 is a weak base so it is difficult to determine the end point of the reaction if titrated directly. Assuming
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