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Question: Describe the concept of Oxidation Levels and discuss the use of Oxidising and Reducing Agents for the Modification Of Functional Groups in Organic Chemistry.

Answer: The majority of the reactions of organic compounds, which involve conversion of one type to another, can be classified as oxidation or reduction. This conclusion can be justified on the basis of the definitions of the terms, oxidation and reduction. Oxidation is defined as a loss of electrons and reduction as a gain of electrons. Other definitions have been formulated which deal with such concepts......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Experiment to determine some of the mechanical characteristics of various materials.

Answer: Introduction The following experiment was designed to determine some of the mechanical characteristics of various materials. These included the stress strain characteristics, such as Young’s Modulus, yield strength and tensile strength. We also performed experiments to determine the resistively, relative hardness, and toughness of the given samples. We then used the theory of material scienc......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Producing Pharmaceuticals Assignment - Procedures For Obtaining Licensing For A New Drug.

Answer: When a new drug is discovered there is a very complex and drawn out process that must be carried out ion order to obtain manufacturing and product licences. In the interest of public safety, the guidelines that are set out are extremely rigid and must be strictly adhered to. Safety, Quality & Efficacy The first issue to be dealt with is the quality, safety and efficacy of the drug in question.......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Experiment: Preparation of bis(acetylacetonato)copper(II)
Objectives:
· To synthesise Bis (acetylacetanato) copper (II) compound by using Copper (II) Nitrate as starting material.
· To recognize the nature of the ligand
· To learn the technique of crystallization.
Questions:
1. Draw the structure of the complex.
2. Describe the structure by mentioning the ligating atoms of the ligand and its geometry.
3. Discuss the synthesis of the complex.

Answer: Introduction: The four most common techniques for the bulk purification of crude organic compounds on a laboratory scale are recrystallization, distillation, extraction, and column chromatography. Numerous other methods are used somewhat less frequently (for example, sublimation) while still others are generally useful only for small scale applications (i.e., preparative gas chromatography). O......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Lab 3: Ascorbic acid content of fruit juice

OBJECTIVE

To determine ascorbic acid content in a sample of fruit juice by using titration method with 0.001M 2,6-dichlorophenolindophenol, C12H7O2NCl2.

Answer: Ascorbic acid, the chemical term for vitamin C, is found naturally in fruits and green vegetables. It is a dietary requirement for normal metabolism, formation of collagen, wound healing, and tissue repair. Ascorbic acid is often used as an antioxidant to help prevent free radical damage in the skin, builds resistance to infection, aids in the prevention treatment of the common cold, and aids in t......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: CET PART IIA EXERCISE 6 Process Synthesis

Answer: The objective of the exercise is to perform a preliminary design evaluation for a plant to produce 30,000 te/yr of Maleic Anhydride (MA), C4H2O3, from a liquid feedstock containing 95% n-butane. The remaining 5% of the feed is iso-butane, which is taken to form carbon dioxide instantaneously under the reactor conditions. The reactor must be kept above 100 ºC everywhere to prevent condensation on ......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Experiment title: Preparation and Reactions of Boric Acid, H3BO3. Objectives:

1. Is to synthesize the boric acid B(OH)3 from sodium tetraborate as starting material.
2. A crystallization technique will be used to obtain the final product.
3. A better understanding on the physical properties predominantly, the crystal structure of the boric acid will be studied.

Answer: Boron is one of the simplest of atoms. The only simpler ones are hydrogen, helium, lithium and beryllium. Boron has chemical symbol B, atomic number 5, and occurs naturally as 80% B11 and 20% B10. The latter isotope has a high cross section for thermal neutron absorption, 3800 barns. Thermal neutron counters are often filled with BF3 gas. The gamma ray from the neutron capture reaction B10 (n, -) ......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Experiment To find out the effect of temperature on enzyme activity.

Answer: Like all enzymes, amylase catalyses a (bio) chemical reaction. A fundamental of chemical thermodynamics is that all reaction rates will increase as the temperature increases. With a typical amylase, therefore as you increase the temperature to the optimum, the rate at which an enzyme catalyses the breakdown of starch increases.......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: An experiment measuring the potential difference generated by various simple electrochemical cells.

Answer: Aim: The purpose of this experiment was to correctly construct three simple electrochemical cells and then measure the potential difference, including the polarity, between the two metal electrodes in each cell. Method: Þ Clean each metal strip with separate pieces of emery paper (if necessary). Þ Place each of the two metal strips required for the cell in a separate beaker. Hold each stri......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

Question: Assessed Exercise, Gas Phase Atmospheric Chemistry.

Answer: Unlike stratospheric ozone, which is necessary for life on earth, tropospheric ozone has been found to have many negative consequences. It has detrimental effects on both human health (causes respiratory problems) and on the growth of crops and vegetation. Tropospheric ozone is often called \"bad\" ozone because it can damage living tissue and break down certain materials. Ozone affects plants in ......(short extract) to download the full answer, please Sign in or Register then make a payment or submit an essay

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