CHEM 163: SYNTHESIS AND ANALYSIS OF A COPPER(II) COORDINATION COMPOUND INTRODUCTION In this multi-week experiment‚ you will synthesize a compound and then analyze it to determine its empirical formula. The substance you will prepare is a vividly colored coordination compound of copper. Based on the reagents used in the synthesis procedure‚ you can assume that the final compound contains copper(II)‚ ammonia‚ sulfate‚ and water. In
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VIAL W/ MAGNETIC SPIN VANE AND AIR CONDENSER Dissolve 150 mg (1.10 mmol) of sodium acetate trihydrate in 0.5 mL of distilled water in a 10 X 17-mm test tube. Cap the tube and set the solution aside for use in the next step. Add‚ with stirring‚ 150 µL of acetic anhydride to the solution of aniline hydrochloride‚ followed quickly by addition (Pasteur pipet) of the previously prepared solution of sodium acetate. Stir to thoroughly mix the reagents (~5 min.). You should see the formation of a white
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to the silica is shown through the higher Rf values‚ 4‚4-diaminodiphenylmethane and 3‚4-dimethylphenol don?t have the same IMFs. These compounds contain H-bonding capabilities‚ which interact more with the silica‚ or the stationary phase‚ as ethyl acetate?s more polar nature mixed well with them due to their greater affinity towards polar conditions. This is exemplified by the low Rf values of 4‚4-diaminodiphenylmethane and
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Link reaction The link reaction takes place in the mitochondrial matrix and its main function is to turn the pyruvate into acetate for the kerb cycle. During the link reaction the pyruvate molecule undergoes decarboxylation and dehydrogenation‚ the enzymes pyruvate decarboxylase and pyruvate dehydrogenase remove the carboxyl group (which becomes a carbon dioxide molecule) and removes the hydrogen atoms from the pyruvate molecule. The coenzyme NAD accepts the two hydrogen atoms and becomes reduced
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phosphate levels were still on the higher side. He was advised low phosphorous diet‚ acetazolamide and phosphate binder (calcium acetate). Histopathology showed giant cell reaction‚ xanthomatous and focal mononuclear infiltrate suggestive of tumoral calcinosis (TC). He was reevaluated after 6 months. Since patient had persistently elevated phosphorus levels‚ calcium acetate was replaced with Sevelamer on which phosphorous levels progressively decreased to
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stirrer were then set to 7.0 and turned on. The batch reactor was started to ensure the conductivity probe was functional and the reading was displayed on the PC. 500mL of ethyl acetate was then added to the reactor‚ which was maintained at approximately thirty degrees Celsius by a water bath. As soon as the ethyl acetate was added‚ the conductivity and temperature were measured at two minute intervals until the conductivity plateaued‚ indicating the point of maximum conversion for the reaction.
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acid (dried from week 1) are taken with MelTemp devices. If you have never used one your instructor will demonstrate. MelTemp C OH O OH H OC H2CH3 H + C OH O + OCH2CH3 + H2O2 Procedure Part A: Esterification of Salicylic Acid with Ethanol 1. Before starting remove a spatulaful (that will be < 0.1 g) of SA (salicylic acid) and place in a labeled plastic vial to use for melting points. 2. In a 100 mL round bottom flask‚ mix at least 5 g dry salicylic
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percentage purity of solid C was found to be 6.01%. The melting point range of purified solid C was 117.0 – 119.0C while the boiling point of liquid C was found to be 117C. The identity of solid C and liquid C was found to be benzoic acid and butyl acetate respectively. INTRODUCTION The isolation of individual or groups of compounds can be accomplished
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Biological investigation of Arum palaestinum 6.1. Antioxidant activity The antioxidant activity of the ethyl acetate fraction of A. palaestinum characterized by its strong DPPH free radical scavenging activity (SC50 3.1 ±0.82 μg/mL) [4]. Both of the aqueous and ethanol extracts had remarkable antioxidant activities about 43.1‚ 12.7%‚ respectively [39]. Recently
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Full Report on Exercise 4.2 ESTIMATION OF PROTEIN CONCENTRATION BY SPECTROPHOTOMETRY And Exercise 4.3 GEL FILTRATION CHROMATOGRAPHY Joel Don M. Untalan CHEM 160.1 – 1L AY 2013 – 2014 Groupmates: Sonette Yao Kristopher Quilan Laboratory Instructor Carmelo C. Briones I. Introduction Analyzing proteins in determination of protein concentration by spectrophotometry is important. It determines to what concentration of a certain protein is in a crude sample. In this technique‚ a wide
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