"Magnesium oxide" Essays and Research Papers

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    Production of Acetone

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    40 – 60 % propene is used for the manufacture of 2-propanol. A large number of catalysts for 2-propanol dehydrogenation have been studied‚ including copper‚ zinc‚ and lead metals‚ as well as metal oxides‚ e.g.‚ zinc oxide‚ copper oxide‚ chromium-activated copper oxide‚ manganese oxide‚ and magnesium oxide. Inert supports‚ such as pumice‚ may be used. CH3CH=CH2 CH3CH(OH)CH3 CH3COCH3 +H2 (3) By catalytic oxidation of Propene (Wacker-Hoechst). The process is analogous

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    Ilab Chemistry Lab

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    Maria Reyes iLab‚ Week #3 ATOMIC WEIGHT OF MAGNESIUM LAB Introduction The purpose of this lab was to determine the atomic weight of magnesium by measuring the amount of hydrogen gas evolved when hydrochloric acid reacted with magnesium. In order to measure the atomic weight I needed to measure the amount of the hydrogen gas that was evolved in reaction to the acid of the magnesium. The reaction used was: Mg + 2HCl --> H2 + Mg2+ (aq) + 2Cl- (aq). The major findings of this experiment were that

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    chemistry paper

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    guess paper 1. Express the rate of following reaction in terms of disappearance of hydrogen in the reaction. 3H2(g) + N2(g) 2NH3(g) 2. What is peptisation? 3. Write Reimer Tiemann reaction. 4. Why is CO stronger ligand that Cl-. 5. Write structure of 2-(2-Bromophenyl)butane. 6. Complete the reaction C6H6+R COCl 7. Why pentahalides more covalent than trihalides? 8. What is difference between nucleoside and nucleotide? 9. Explain the following- (a) Gattermann Koch

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    Determination of Calcium ions in milk using titration. Background Calcium is a mineral which is essential to the human body. In fact 1.5% of the human body is made up of calcium‚ and not just the obvious uses such as bone and teeth formation but it is also a vital factor in many enzyme reactions‚ for example blood clotting. It also partakes in the regulation of the hearts rhythm. Lack of the crucial mineral can result in the build up of cadmium and lead‚ both of which are toxic. along

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    Abstract: The purpose of this lab is to prepare phenylmagnesium bromide‚ a Grignard reagent‚ and react it with benzophenone to give triphenylmethanol. Once made‚ the Grignard reagent will do a nucleophilic attack on the carbonyl carbon of the ketone‚ benzophenone. The result is an alkoxide that is then protonated to give the alcohol‚ triphenylmethanol. The purity of the final product will then be considered by melting point and IR spectroscopy. Final purified triphenylmethanol weighed 8.02 grams

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    grignard synthesis

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    Lab 3: Grignard Synthesis Objective: The goal of this lab is to synthesize a Grignard reagent from bromobenzene and magnesium metal in diethyl ether. This same Grignard reagent would then be used to prepare a tertiary alcohol and then purify and characterize the product. Table of Reagents: Name Chemical formula Melting Point Boiling Point Density Safety Hazards Diethyl ether C4H10O -116.3°C 34.6°C 0.7134 g/ml Flammable Bromobenzene C6H5Br -30.6°C 156°C 1.5 g/ml

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    Element Study Guide

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    Mg Magnesium -Mr. Magnesium replaced “r” with “g” in “Mr” and got the abbreviation of his name‚ Mg. Kr Krypton -Kryptonite is Superman’s enemy‚ so don’t confuse it with krypton the element. Ca Calcium -Cali eats calcium Br Bromine -Think of your bro when you think of Bromine‚ for the symbol erase the “o” and you got bromine. C Carbon -It’s really simple just think “C is for cookie‚ but also for Carbon.” As Arsenic -Arsenal is weapons‚ but arsenic is an element‚ think of As

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    Calculate the concentration of the solution formed when 23.61 g of sodium phosphate is dissolved in 475.0 cm3 of water. 2.     What volume of water is needed to dissolve 85.8 g of silver nitrate to make a 2.650 M solution? 3.     What mass of magnesium sulphate is needed to make 1500 mL of a 2.45 M MgSO4 solution? 4. Calculate the concentration of the solution formed when 59.78 g of ammonium hydroxide is dissolved in 856.0 cm3 of water. 5. What volume of water is needed to dissolve 150

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    Designation: C 114 – 07 Standard Test Methods for Chemical Analysis of Hydraulic Cement1 This standard is issued under the fixed designation C 114; the number immediately following the designation indicates the year of original adoption or‚ in the case of revision‚ the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. 1. Scope* 1.1 These test methods cover

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    Grignard reaction

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    spectrum was run. Next‚ apparatus for Grignard reaction was placed in an oven for an hour to ensure no moisture was present then set up for reflux with a dropping funnel to equalise pressure and a jack to allow easy removal of apparatus from heat. Magnesium turnings (2.68g)‚ anhydrous diethyl ether (15 cm3)‚ a crystal of iodine and a stirrer bar were added to the round bottomed flask (250 cm3) and anhydrous diethyl ether (25 cm3) and dry bromobenzene (15.7g) were added to the dropping funnel‚ ensuring

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