characteristics of the alkaline earth metals and their compounds; • describe the manufacture‚ properties and uses of industrially important sodium and calcium compounds including Portland cement; the biological significance of sodium‚ potassium‚ magnesium and calcium. • appreciate The s-block elements of the Periodic Table are those in which the last electron enters the outermost s-orbital. As the s-orbital can accommodate only two electrons‚ two groups (1 & 2) belong to the s-block of the Periodic
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exothermic since heat is released into the surroundings. However‚ an example of endothermic neutralization is the reaction between baking soda (sodium bicarbonate) and vinegar (acetic acid) (or any other weak acid). Hydrochloric Magnesium Magnesium Carbon Acid +
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experiment‚ phenylmagnesium bromide‚ a Grignard reagent was synthesized from bromobenzene and magnesium strips in a diethyl ether solvent. The Grignard reagent was then converted to triphenylmethanol‚ a tertiary alcohol with HCl. The reaction for phenylmagnesium bromide was: The reaction for Grignard to triphenylmethanol was: In the formation of the Grignard reagent‚ the limited reagent‚ magnesium was determined and 0.00617mol was calculated. In the second part of the experiment‚ a yield
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other parameters‚ P‚ V‚ n and T through the experiment. Equipment and Materials: Large beaker Ring stand Clamp Copper wire 100 mL eudiometer tube Magnesium (Mg) ribbon M6 H2SO4 (Sulfuric Acid) Wash bottle filled with distilled water Procedure: First I cut a piece of Mg ribbon and used steel wool to rub off the MgO (magnesium oxide). I then used the scale to determine when I had approximately 0.0440g of Mg. I then wrapped the Mg with copper wire so that none was showing‚ but left
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Beryllium and magnesium These are just like the reactions with dilute hydrochloric acid‚ and you have probably been familiar with the reaction between magnesium and dilute sulphuric acid almost since you started doing chemistry. Bubbles of hydrogen are formed‚ together with colourless solutions of beryllium or magnesium sulphate. For example: Calcium‚ strontium and barium Calcium sulphate is sparingly soluble‚ and you can think of strontium and barium sulphates as being insoluble
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atoms in 3.08g of tetrachloromethane (CCl4) b. The number of moles of fluorine atoms in 204 g of boron trifluoride BF3; c. The number of moles of chloride in 5.55 g of calcium chloride‚ CaCl 2 d. The number of moles of sulphate ions in 144g of magnesium sulphate 3 e. The number of molecules in 1000 cm of barium nitrate 5. 100 cm3 of hydrogen chloride gas was mixed with a metallic compound producing a very volatile & explosive reaction. What is the mass of this gas at RTP? Chemist ry 6
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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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phosphate dihydrate‚ D & C Yellow #10 aluminum lake (in 25 mg tablet)‚ FD & C Blue #1 aluminum lake (in 25 mg tablet)‚ FD & C Red #40 aluminum lake (in 25 mg tablet)‚ FD & C Blue #2 aluminum lake (in 50 mg tablet)‚ hydroxypropyl cellulose‚ hypromellose‚ magnesium stearate‚ microcrystalline cellulose‚ polyethylene glycol‚ polysorbate 80‚ sodium starch glycolate‚ synthetic yellow iron oxide (in 100 mg tablet)‚ and titanium dioxide. Zoloft ZOLOFT is supplied for oral administration as scored tablets containing
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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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