The Grignard Synthesis of Triphenylmethanol Organic Chemistry Lab II March 19‚ 2012 Abstract The purpose of this experiment was to synthesize the Grignard reagent‚ phenyl magnesium bromide‚ and then use the manufactured Grignard reagent to synthesize the alcohol‚ triphenylmethanol‚ by reacting with benzophenone and protonation by H3O+. The triphenylmethanol was purified by recrystallization. The melting point‚ Infrared Spectroscopy‚ 13C NMR‚ and 1H NMR were used to characterize and confirm
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in 768 grams of iron (III) sulfate?(1.92 mol) 2. How many moles are there in 1.2 kg of potassium dichromate?(4.1 mol) 3. You have 13.2 moles of lead (II) nitrate. How many grams is this? (4.37 x 103 g) 4. How many pounds would 5.75 moles of magnesium hydroxide weigh?(0.739 lb) 5. How many moles are there in 78 grams of nitrogen gas?(2.8 mol) EMPIRICAL FORMULA WORKSHEET 1. What is the empirical formula for a compound which contains 0.0134 g of iron‚ 0.00769 g of sulfur and 0.0115 g of oxygen
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Training Schedule for In plant Training It was magnificence 22 (From 24 Sep to 22 oct 2011) days training period in The IBN Sina pharmaceutical Industry Ltd. |Sl No. |Section |Date |Duration (Day) | |01 |Liquid |24‚25 Sep-2011 |2 | |02 |Tablet
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diseases as well as failed yield for fruits and seed crops. Limit the uptake of other nutrient‚ which is magnesium or potassium. Older leaves at the bottom of plant will start to become yellowish (chlorosis) while the rest of the plant’s leaves will be light green. Calcium (Ca) Newer leaves at the top of the plant will be distorted and have irregular shape. Blossom rot-end also may occur. Magnesium Centre of leaf has green arrowhead (Mg) due to yellowing of edges of the leaves. Phosphorus (P) Burnt
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polyatomic ions. Compounds | Formulas | Sodium hydroxide | NaOH | Potassium nitrate | KN03 | Magnesium sulfate | Mg2SO4 | Aluminum phosphate | AlPO4 | Aluminum nitrate | Al(NO3)3 | Ammonium nitrate | NH4NO3 | 25. Name each of the following binary ionic compounds. Formulas | Name | NaBr | Sodium Bromide | MgS | Magnesium Sulfide | CaO | Calcium Oxide | MgCl2 | Magnesium Chloride | AlF3 | Aluminum fluoride | CaI2 | Calcium Iodide | 26. Name each of the following binary
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yield were 80.46% and 47.526%‚ respectively. A melting point range of 85-87oC was obtained from the purified product. - Introduction A Grignard reaction adds an alkyl-magnesium halide to an aldehyde or ketone carbonyl carbon. The alkyl-magnesium halide is known as the Grignard reagent. The carbon bonded to the magnesium
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concentration of hydrochloric acid and magnesium‚ from there I will monitor the gas (hydrogen) produced and analyse the results. Prediction: I predict the higher the molarity of the hydrochloric acid the faster the rate of reaction therefore the quicker the gas will be produced in the specific time interval. Overview of the experiment: In this reaction two substances will be present in the solution‚ magnesium and hydrochloric acid. During the reaction magnesium particles will collide with the
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Coralde Institute of Chemistry‚ University of the Philippines‚ Diliman‚ Quezon City 1101 Philippines Results and Discussion A combustion reaction is a reaction that liberates heat and light. Magnesium is a stable element and reacts violently with evolution of much heat and light. The reason the magnesium burned in carbon dioxide was because it combined with the oxygen in the CO2 leaving elemental carbon behind. CO2(g) C(S) + O2(g) 2Mg(S) + O2(g) 2MgO(S) 2Mg (S) + CO2(g) 2MgO(S) + C(S)
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Grignard Synthesis of Triphenylmethanol Aim The aim of this experiment was to prepared Grignard reagent (phenylmagnesium bromide) from bromobenzene and magnesium‚ to use the reagent prepared to synthesise a tertiary alcohol (triphenylmethanol) by reacting reagent and ester (methyl benzoate)‚ and the product formed is analyse by infrared spectroscopy (IR)‚ melting point‚ thin layer chromatography (TLC)‚ gas chromatography mass spectrum (GCMS) and finally Nuclear Magnetic Resonance spectroscopy. Introduction
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is to learn to make Grignard reagents. The reactions of the Grignard reagents with ketones form tertiary alcohols. These reagents are highly air- and moisture-sensitive materials. We will observe the formation of the Grignard reagents‚ which magnesium metal is transformed into organometallic salts. Experimental Procedure: Our experiment was as followed as in our text “Microscale Organic Laboratory” by Mayo from pages 275-283. The following modifications were made: We performed the experiment
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