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Purity of aspirin (chemistry f336 salters b coursework title)

10 pages (2510 words), Download 6
Abstract Aspirin is one of the most widely used compounds in the world. It is used for a number of reasons in the medical community, including as an analgesic and for its blood thinning properties. Due to its popularity, there are several different brands of aspirin on the market, all of which will have different amounts of salicylic acid as their active ingredient.

Properties of Gases.

7 pages (1757 words), Download 1
Some chemical reactions or chemical decomposition reactions result in the production of gaseous products. For instance, hydrogen gas can be prepared in the laboratory through the reaction of a reactive metal and a strong acid. Zinc metal and dilute hydrochloric acid are the preferred reagents for the production of hydrogen gas in the laboratory (Hill, Graham, and John 25).

What effect does the brightness of light have on the growth rate of a plant?

4 pages (1004 words), Download 1
Introduction Plants are important in the continuing existence of life, as it provides food for animals. What is interesting about plants is that they make their own food, and factors that may affect this can understandably deplete resources for the other functions of the plant, such as growth.


3 pages (753 words), Download 1
No matter how the transformation or change is generated or produced, the voltage will be produced because of the transforming or changing magnetic field strength, moving a magnet away or towards the coil. 2. What is a galvanic cell and how does it work? Galvanic cells collect the electrical energy present from the electron transmission in a redox response or reaction to carry out an important electrical work.

Compressed Hydrogen Production Via Reaction Between Liquid Ammonia And Alkali Metal Hydride

3 pages (753 words), Download 1
There are many methods that can lead to formation or production of hydrogen. The interest in this scope is the compressed form of hydrogen, otherwise known as liquid hydrogen. Ammonia .NH3 is recognized as one of the attractive hydrogen H2 carriers because it has a high hydrogen content of 18% mass and it is easily liquefied under about 1 MPa of pressure at a room temperature.

Biochemistry Task 4

3 pages (753 words), Download 1
This means they speed up chemical reactions in the body. The reaction is part of the cycle and takes place separate at each step. The reaction is incomplete in the absence of enzyme. When the cycle is incomplete, and the product is not formed, the function of the organism cannot properly take place.

Chemistry and Computer Science

3 pages (753 words), Download 1
Moreover our cars and power generation units convert chemical energy in fuel to a more useable form. Chemistry has a deep relation to the computers and computer technology. The way we moved towards the more energy efficient electrical and electronic products depicts that generation after generation, the knowledge about the utilization of chemistry enhanced in huge amount.

A harmful impact of acid rain

5 pages (1255 words), Download 0
: Acid Rain “Acid rain is a worldwide environmental issue that has seriously destroyed forest ecosystems” (Liu et al). When rain water consists of excessive acid content, we call it as acid rain. The development of industries, power plants and the increased use of automobiles have polluted the atmosphere immensely and as a result of that the normal structure of the atmosphere has been changed a lot.

Customer Satisfaction and service quality in the Mobile Telecommunication Industry: A Case Study of MTN Nigeria

10 pages (2510 words), Download 0
Customer satisfaction describes the situation where the total percentage of people using a product expresses satisfaction to a certain product. Previous research has shown that customer’s attitudes have changed over the years with customers becoming more demanding and less tolerant in their expectations.

Influence of Drilling Fluid on oil Recovery in Homogenous Reservoirs

11 pages (2761 words), Download 0
Mining industries around the globe are under constant scrutiny as far as the treatment of contaminated water is concerned. There is mounting pressure for mining industries to adopt effective and advanced methods that are environmentally sustainable. Water management has often been the most challenging, as well as long term environmental liability.

therapeutic polysacchraides

9 pages (2259 words), Download 0
In simple terms, it can be said that sugars, starches, cellulose and several other compounds present in the living organisms are carbohydrates. These compounds are classified based on their chemical structure into monosaccharides, disaccharide, oligosaccharides and polysaccharides (Zamora, 2011).


12 pages (3012 words), Download 0
(Herzberg, 1934). Over the past twenty five years significant increase in data regarding singlet oxygen has led to the recognition of its importance in organic chemistry, biochemistry and medicine. Singlet oxygen is an extremely reactive, nonradical, electrophilic molecule.

The second part X-ray Diffraction (XRD) Powder X-ray

14 pages (3514 words), Download 0
The second part X-ray Diffraction (XRD) Powder X-ray. Powder X-ray diffraction is among the primary methods, which are used by solid-state chemists and mineralogists to examine physic-chemical build-up of solids, which are unknown to them. The data is denoted in a group of single-phase X-ray powder diffraction forms of three strong D values in table form (Khan 24).

The effects of alcohol abuse or binge drinking on a diagnotic imaging department

24 pages (6024 words), Download 0
fects on the functioning of a hospital department. Directly, intoxicated patients may be difficult to manage or intoxication may confound some of the results obtained. Indirectly, workload may be increased as alcohol contributes to the prevalence of injuries.

Cylyndrospermospis (CYN) Algae

20 pages (5020 words), Download 0
Such toxicity hazards from seafood are recognized internationally when they are from marine algae (diatoms and dinoflagellates), but nowadays few risk assessments for Cylindrospermopsin in seafood have been conducted. This paper estimates the risk from Cylindrospermopsin contaminated seafood, and provides strategies for safe human consumption.

Research Methodology - Research Findings of Etisalat Telecorporation and the result

12 pages (3012 words), Download 0
Emirates Telecommunications Corporation – Etisalat has adopted as a strategy of outsourcing information technology in order to gain competitive edged in the telecommunications market in UAE and the Middle-East. A research study has been carried out to find the relationship of outsourcing of IT adopted as a strategic initiative and the profitability and sustainability of Emirates Telecommunications Corporation – Etisalatm (Henry, 2008, p.17).

supramolecular polymer based on hydrogen bonding

12 pages (3012 words), Download 0
Because of the reversible interactions, these polymers can thermally equilibrate with their monomers, unlike conventional polymers (Jadzyn et al. 2006). These polymers are responsive to external stimuli. The mechanical properties of these polymers respond strongly to changes in solvent or temperature because of their reversible interactions, and so, they are in continuous equilibrium with their environment (Cate et al.

E-commerce and Its Importance in Business

12 pages (3012 words), Download 0
Almost, all the sectors including finance, retail and communication segments of businesses are enormously being affected by e-commerce activities. In other words, it can broadly be stated that e-commerce has dramatically changed the business modes by a significant level.

Thermoplastic Copolyester nancomposites for biomedical applications

6 pages (1506 words), Download 0
Nanocomposites are polymers containing particles in the matrix that possess at least one dimension of the dispersed particles in the nanometer range (

Electric Powered Vehicles vs. Gasoline Powered

10 pages (2510 words), Download 0
There is not a single category of cars manufactured by the automobile manufacturing companies; rather they are categorized into many types based on mechanical specifications, shape, performance, and size. Apart from difference in brands, there also exist some differences in the types of cars.

The function and mechanism of AlkB.

4 pages (1004 words), Download 0
Investigations on crystal structure and mechanism of AlkB have involved the use of both native and recombinant protein. Recombinant enzyme, entire as well as truncated form is produced through homologous expression; the former cloned in pET21b vector and expressed in BL21 (DES) competent cells; while the latter cloned in pET30a vector and expressed in BL21 competent cells.

The cylindrospermopsin alkaloids

10 pages (2510 words), Download 0
Cylindrospermopsin is regarded as an important algae toxin which has been associated with contamination of surface water. CYN is chemically classified as a trycyclic alkaloid composed of a trycyclic guanidine moiety joined with hydroxymethyluracil (Masten 2000).

How Gas Laws Apply In the Health Care Industry?

12 pages (3012 words), Download 0
Gas laws play a significant role in everyday life. The laws have a significant influence on the lives of living organisms. The atmospheric pressure, respiratory system of living organisms, etc all work according to the ideas detailed in the gas laws. Under an uncontrollable condition, gas a high-pressurized gas can be as dangerous as a nothing in the world.

Therapeutic polysacchraides

6 pages (1506 words), Download 0
Because of their unique composition and structure, the important role that polysaccharides will play in the future of research is undeniable. On a fundamental level, polyssarcharides are defined as polymeric chains composed of mono- or di-saccharides bound together by glycosidic bonds, a special type of covalent bond.

Chemistry and the Environment

4 pages (1004 words), Download 0
(1) Describe the general properties of the atmosphere known as troposphere, stratosphere and the ionosphere. Describe the composition of unpolluted air at sea level. The unpolluted air or atmosphere at sea level is chiefly made of gases kept in place by the effect of Earth’s gravity at an average temperature of about 14 C.
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