Essays on Acetone

Iridium organometallic complexes

Introduction Iridium organometallic complexes are applied as catalysts, light-emitting diodes, dye-sensitized solar cells, and luminescent agents for cells imaging.1 Due to the wide application area, the scientists perform research on preparation, characterization and physical and chemical properties of iridium organometallic complexes.

The oxidation state in complex compound refers to the charge of the metal, which it would have in a simple ionic compound. The configuration of d-orbitals (dn) indicates the number of valence electrons in free metal of the same oxidation state. The iridium electronic configuration is [Xe] 4f145d76s2, yet the s-electrons transfer to d-orbital to form 5d9. The ...

Liver is the largest ‘gland’ of the digestive system. It is located right under the dome of the diaphragm, coated by the capsule. It is distinguished the liver’s convex upper surface adjacent to the diaphragm, and a lower, downwardly facing and in contact with the back and abdominal organs. On the part of the upper surface of the liver it can be seen its right and left lobes, the boundary of which is the crescent liver ligament. To the lower surface of the right lobe there is a gallbladder, close to the deep groove of the liver there ...

Re: A column to separate an Acetone-Methanol mixture

The objective of the project was to optimize the design of a column used to process a supply stream containing 35 percent acetone at 30oC. The optimized design should turn out a distillate product containing 0.75 mole fraction of acetone and 0.0010 fraction of bottoms acetone. The outcome of the experiment produced a distillate product containing 0.0079 molar fraction of acetone.

The molar fraction of acetone in the first inlet stream was determined to be 0.14 lbmol/min. Also, the total flow rate of the second inlet stream and the total gas flow rate were determined to be 61.84 lbmoles/min ...

Section

Introduction The purpose of this lab was to find the amount and percentage of nickel present in an unknown compound using the "mole method." The unknown nickel compound was dissolved in water and treated with dimethylglyoxime and ammonia solutions to obtain the precipitate of known chemical composition (bis(dimethylglyoximo)nickel(II)), which then was weighed and using this data the amount and percentage of nickel in the initial compound were found. The insoluble Ni(DMG)2 complex is formed in two steps. First, the dimethylglyoxime reacts with hydroxide ion formed through the ammonia hydrolysis to produce dimethylglyoximate anion: C4H8N2O2( ...

After reviewing several topics, the population I have chosen to study is the local African-American diabetic population. This population is where I feel the greatest positive impact will occur. Currently employed with a nonprofit hospital, it is evident that many individuals lack health insurance and currently suffer from multiple, uncontrolled chronic medical issues. I have confidence in the fact that through teaching, the cycle of having uncontrolled chronic illnesses can be broken.

Aggregate Details

The aggregate chosen for the Capstone project will focus on the local African American diabetic population. The chosen population, largely located within the city of Ft. Pierce, ...

Diabetes mellitus in itself is considered an endocrine issue. When determining the priority diagnoses for an admitted patient, however, it is important to consider taking an all-encompassing perspective with regards to the pathophysiology of each patient and address each issue accordingly. The priorities in the selected aggregate for diabetes mellitus are as follows: Firstly, there is the situation of unbalanced nutrition often evidenced by increased urinary output (or dilute urine), recent weight loss and a decrease in muscle tone, disinterest in eating, diarrhea and an increase in ketosis. Some of the pathophysiological factors that may have led up to ...

English 103

Tobacco has a long history in the America since 600 to 900 A.D. It was used predominantly in medical purposes and the people on that time did not smoke every day (Healthliteracy.worlded.org). Today, smoking has become the major problem in the world since 1950s. According to the cross-section data obtained from 187 countries, nowadays there are more than 967 million of people, who smoke every day compared to 721 million in 1980s (BBC.com). It comprises about 1/10 population in the world and there are more than 480,000 deaths per year that are caused by smoking cigarettes in the United ...

C3 and C4 photosynthetic pathways

Plants have the ability to grown and survive in a number of different environments. They can adapt from hot and dry to frigid temperatures. In order to adapt to various environmental conditions plants have to adapt and develop mechanisms to survive different conditions. One mechanism of adaptation involves the mode of fixing carbon dioxide. Carbon fixation is the process of incorporating inorganic Carbon to an organic form. Photosynthesis is the process of carbon fixation used by the plants. C3 plants usually are found in cold, temperate climate and are most widely distributed worldwide. They use environmental carbon-dioxide (CO2) and incorporate ...

Introduction

Irritant contact dermatitis results from the exposure of the skin to irritants. The function of the skin is to protect an individual from dehydration, irradiation, mechanical trauma and direct exposure to harmful sensitizing irritant chemicals (Johansen, Frosch and Lepoittevin, 2010). Perturbation of the skin barrier may lead to development of irritant contact dermatitis. Jack’s line of work, which deals with using abrasive solvents and chemical are a cause of the irritation he is experiencing. A small perturbation of the skin might have resulted to an entry of an irritant, which further impaired the skin causing an increase in irritation ...

Developing a Nutraceutical and Functional Food Product

Research is an effective tool for use in developing nutraceutical and functional food products. Universities are excellent institutions of conducting research work. Engaging with local and international universities is a good way to enhance development in nutraceutical and functional food products. Student researchers in these institutions can be funded and equipped to explore new possibilities of expanding the variety of nutraceutical and functional food products available to the consumers.

The following approach will be taken to ensure the successful development of new nutraceutical and functional food products:

- Ensuring internal communication between the research team and other cross-functional departments; - Collection of customer information through marketing research; - Establishing linkages and collaborations with the suppliers; ...

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Introduction and Literature Review

The value for a drug is significantly impacted by the dissolution rate, chemical stability and solubility of the drugs thereby impacting the pharmaceuticals efficiency as well. In the pharmaceutical industry multi-component crystals such as hydrates, solvates, co-crystals and salts have a major role during the design of new solids. Solid does not self-crystallize. It crystallizes in varied forms depicting random crystal properties. Various approaches are used to modify solids like Salting, Solvation, Hydration, and Polymorphism. Apart from these approaches, Co-Crystallization is a promising new approach to modifying solids (Nauha, ...

Chapter 8

Chemicals in action An acid and base reaction occurs when a complete exchange of electrons between the proton donor and proton acceptor occurs. In this process a salt if formed. In the definition, a salt is a substance formed from an acid by its replaceable hydrogen either wholly or partially by a metal or an equivalent radicle. Example of salt formation Mg+H2SO4→MgSO4+H2 Mg+HCl→MgCl2+H2 In the modern ionic theory, a salt is a compound of oppositely charged ions. From this point of view, there is no difference between NaCl and NaOH. Further, anhydrous aluminum chloride is not a ...

Introduction

The term lipids is used to refer to a group of organic compounds that are naturally occurring and that are all soluble in non-organic solvents such as benzene , chloroform, acetone and ether but not soluble in water. The later characteristic means that lipids can also be defined as amphiphilic or hydrophobic small modules. This amphophilic nature of lipids essentially allows them to be able to form structures such as liposome’s, vesicles or membranes when subjected to aqueous environments. The biological lipids mainly originate from two major build-blocks or biochemical sub-units: isoprene and ketoacyl groups. Another distinct characteristic of lipids ...

Summer 2013

Abstract Reliable techniques to meet the needs of patients with peripheral nerve repair injuries need to be refined. One of the strategies often used is to create a nerve guidance channel or build a nerve conduit Silicone is has been found to work well as a conduit from an injury for regenerated axon cells if it does not contain foreign components. The cycle of the cleaning treatment was repeated until the Pentane-Acetone-Heat Procedure was successful and the plated cells survived for several weeks. The duration of the plating and cell count using the cleaned silicone lasted from May 3, 2013 to ...

Part 1

1. 1. Eye piece 5.Arm 2. Objective lens 6.Coarse adjustment knob 3. Stage 7.fine adjustment 4. Base 2. What is the procedure (step by step) which you followed to do gram staining? (20 points) 1. Obtain a tissue sample for the gram stain. 2. Two or three drops of the sample were placed on the glass slide. 3. Use the electric slide warmer, heat the smear. Alternatively, this can be done by quickly passing it over a flame. Although should be very quick to avoid distortion. 4. Add crystal violet to the ...

Component One

The Data Quality Objectives (DQO Process) is a planning process that has been developed by the United States Environmental Protection Agency. This particular planning process is used when environmental information or data is used to make a choice between two specific alternatives or to make a derivation of contamination estimate. The process is also used in the development of acceptance and performance criteria that find use in the clarification of study objectives, defining of appropriate data type and the specification of potential errors of decisions that are then used as the basis for the establishment of the quantity and the quality of ...

THE OXIDATION OF OLIVE OIL UNDER MICROWAVE HEATING

Chemistry: Research Proposal Research is proposed to determine whether or not olive leaves are a good source of antioxidants. Reports of experiments to determine the effectiveness of natural plant extracts including olive leaf extracts have found that to be the case. The olive tree (Olea europaea) leaves are attractive because they “contain secoiridoids (oleuropein, ligstrosid, dimethyloleuropein, and oleoside), flavonoids (apigenins, kaempferol, leteolin), as well as phenolic compounds (caffeic acid, tyrosol, hydroxytyrosol).” (Rafiee et al., 2012, p. 1498) High content of antioxidant properties and total phenols have been determined from olive leaf extractions. (Rafiee et al., 2012;) Rafiee (et al., ...

Lab Report on Aldehydes and Ketones Experiment

Lab Report on Aldehydes and Ketones Experiment

The current experiment aimed at learning properties of some of the common aldehydes and ketones, as well as, the chemical tests used to distinguish the different classes. Both aldehydes and ketones have the same functional group known as carbonyl group C=O. In the aldehyde compounds, the carbonyl group is located at the end the structure with a general structure shown below (McNaught & Wilkinson, 1997). The carbonyl carbon is, therefore, the first carbon of the carbon chain. On the other hand, the carbonyl group in ketones is located anywhere on the carbon ...

Abstract

The experiment conducted is a palladium catalyzed coupling of a terminal alkyne to 4-Iodonitrobenzene. 1.25 mL of 95% ethanol was added along with 93mg of 4-Iodonitrobenzene, 80mg piperazine hexahydrate and 4 mg CuI, in a 5mL clean and dry conical vial plus spinvane. 80 µL (density 0.898 g/mL) of tetrahydro-2-(2-propynyloxy)-2H-pyran was added to the solution through an automatic pipette. To this add 3 mg of Pd(OAc)2, refluxed and stirred under a water cooled condenser for half an hour until it turned dark brown. The reaction mixture was then poured into a clean and dry evaporating dish and heated gently with a ...

Question 1: Separation of mixtures

This is a method of separation of two immiscible solvent phases. It is the best method for the separation of a mixture of Cyclohexanone and Acetone (miscible)

Cyclohexanone is insoluble in water while Acetone is miscible with water. A mixture of the two compounds forms two distinct layers in water. Distillation cannot be used because the two compounds are highly flammable.

In this method of separation, water is added to the mixture. Acetone completely mixes with water while cyclohexanone does not. A funnel is then used to separate the two.

(Note: the colouration is ...