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Chemistry Essays

Result for Subject Chemistry:
1169 essays
Raman Spectroscopy of Toluene and Fluorescence Spectroscopy of Rhodamine 6G Chemistry Lab Report
4 pages (1000 words) , Download 3 , Lab Report
However, photon that is incident is of much greater energy than the quantum energy in the vibrational mode. This loses its energy to the molecular vibration with the remaining energy being scattered as a photon with reduced a
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Laboratory Preparation of Paint Using Copper Carbonate as the Pigment Chemistry Research Proposal
2 pages (607 words) , Download 9 , Research Proposal
Free
A binder serves to hold the pigment to the surface. Most binders are polymeric and are either suspended or dissolved in paint by emulsifiers. Natural oils- linseed, tung, and fish were used as binders until the 1960s. Currently, alkyd resins, vinyl and acrylic emulsions, epoxy resins, and polyurethanes are the primary binders used in paints. 
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Extraction of Metals from Their Ores Worksheet Chemistry Coursework
7 pages (1805 words) , Download 2 , Coursework
Free
These elements are strong non-metals and are unstable in their elemental state and they can form stable compounds when reacted with the more reactive metals. Furthermore, the reactions that form these compounds are exothermic hence they are favored and oxygen and sulfur are commonly bonded to metals in their ores.
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Statement of Purpose Chemistry Personal Statement
2 pages (500 words) , Download 6 , Personal Statement
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I graduated with a GPA of 3.12/4 from the university. This enabled me to get a scholarship from my government and I intend to pursue this filed further. However, I believe that a masters’
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Lysol as Household Product Chemistry Case Study
1 pages (250 words) , Download 6 , Case Study
Free
Most people know Lysol kills germs. I would work with the slogan ‘kills 99.9% of household germs’. Along with this phrase, a new slogan could be added. ‘Germ destroyer’ or ‘H1N1 fighter’ could be used with the original slogan. If using ‘H1N1 fighter’ as a slogan, this would achieve many goals. By using the specter of H1N1 it can cause the consumer to switch to Lysol through anxiety.
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Preparation of sample for NMR analysis and integration Chemistry Essay
2 pages (500 words) , Download 2 , Essay
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The requirement for large amounts of pure compound is because of the relatively low sensitivity of NMR and the lack of a compound separation system in analysis of NMR. The Purpose of this paper will be to
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The Bio-Oil Over the Catalysts of Ni-CNTs Chemistry Research Paper
1 pages (250 words) , Download 2 , Research Paper
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The aim of this research was to advocate bio-oils reformation through the current used in the Ni-CNTs catalyst’s high-dispersion. This indicated that bio-oils reformation is helpful in increasing hydrogen’s yield by the reformation of bio-oils organic compounds at low temperature. The authors used H2-TPD, XRD, TEM, XPS, ICP/AES.
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Nuclear power as an alternative energy source Chemistry Essay
4 pages (1000 words) , Download 2 , Essay
These countries are France, Japan, and the United States. This is despite the fact that there are 439 nuclear reactors for power generation scattered across 31 countries. Statistics have shown that this
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Dmitri Mendeleev vs. Lothar Meyer who is the father of the periodic table Chemistry Essay
2 pages (500 words) , Download 3 , Essay
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There has been continued disagreement concerning who should receive the credits as the father of the periodic table between Lothar Meyer and Dmitri
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Evaluation of Three Different Types of Spectroscopy Chemistry Lab Report
2 pages (500 words) , Download 2 , Lab Report
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atoms and amount of light absorbed, therefore, we can determine the concentration of the sample by measuring the amount of light absorbed (Karabegov, 2011). Samples have to be heated to extremely high temperatures in other to atomise them. The sample goes through a nebulizer
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Pick a Chemical Industry or Book Chapter Chemistry Essay
7 pages (2170 words) , Download 2 , Essay
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It is commonly found in sand and dust. It hardly ever occurs in a naturally free state. In industry silicon is most often used as in the state it is found in nature. The majority of silicon found in nature is used in steel refining and aluminum casting. The highly purified form of silicon is used in integrated circuits. This makes it an essential component of most computers.
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Atomic Weight of Magnesium Chemistry Lab Report
1 pages (250 words) , Download 16 , Lab Report
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In this experiment, the validity of balanced equations was demonstrated by accurately predicting the molecular weight of Magnesium, supposedly a constant
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Quantitative Analysis of a Glucose Solution Chemistry Essay
1 pages (250 words) , Download 2 , Essay
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A standard curve is obtainable by making solutions with known concentrations of the substance under investigation then measuring their absorbance. The known concentration is plotted on the y-axis against absorbance on the
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Zirconium Oxide Manufacturing Chemistry Essay
2 pages (500 words) , Download 2 , Essay
Free
There are several routes to the extraction of zirconium oxide: chlorination, alkali decomposition, lime fusion and precipitation of the acidic reagents. Zirconium oxide has a very high resistance to heat, so it's ideal to be used as a refractory insulating material, industrial manufacture of crucibles and production of alkaline zirconate.
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Antibacterial and biomedical applications of gold nanoparticles and graphene composite Chemistry Essay
4 pages (1000 words) , Download 2 , Essay
Other properties include having excellent biocompatibility and functionalization. This has made it easy for researchers to use it physical, chemical and biomedical fields. Its capacity to absorb aromatic biomolecules through static interaction and electrostatic
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Separating and Identifying Food Dyes by Paper Chromatography Chemistry Lab Report
6 pages (1766 words) , Download 3 , Lab Report
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The solid or liquid stationary phase holds the mixture to be separated. In addition, it is the medium through which the mobile phase passes. Basically, on the other hand, the liquid or gaseous mobile phase passes along the stationary phase and in the process carries the components of the mixture with it. 
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Introduction How does money become contaminated with cocaine Chemistry Essay
1 pages (250 words) , Download 2 , Essay
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“Both may contribute ... [but] it seems clear that the banknotes containing 1,240 micrograms of cocaine were used directly during a drug deal or uptake [drug use]” (Zuo cited in Biello, 2009). Owing
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Pyrolysis of Aryl Sulfonate Esters in the Absence of Solvent: E1 or E2 Chemistry Assignment
2 pages (500 words) , Download 2 , Assignment
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The gas is needed pure and so, the liquid sample acts as impurities commonly referred to as ghost peaks. 5. Thermal conductivity detectors work by sensing the changes in thermal conductivity of the column
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Analysis of Density Lab Chemistry Lab Report
1 pages (329 words) , Download 2 , Lab Report
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The apparent slight differences between the actual and theoretical figures may be accounted for by error through the inaccurate reading of measurements with the device or tool used. Another source of error (other than human fault) may be attributed to an unnoticed defect in the apparatus or measuring scale which has not been properly calibrated.
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Chemistry and Types of Bonding Chemistry Essay
1 pages (356 words) , Download 2 , Essay
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In the process of losing or gaining electrons, these atoms become ions with a positive and negative charge. Opposite charges attract and hold these atoms close together in a lattice structure forming multiple ionic bonds. Because these forces of attraction are very strong, ionic compounds have high melting and boiling points.
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Compare and contrast thermodynamics and kinetics Chemistry Essay
1 pages (250 words) , Download 3 , Essay
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These relationships must be experimentally determined so as to specify the system’s properties. On the other hand, kinetics deals
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Exponential Decay of a Transition Metal Complex Ion Chemistry Lab Report
2 pages (500 words) , Download 6 , Lab Report
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High temperatures increase the rate of collision and thus speeding up the rate of decay in transition elements. At normal temperatures microorganisms are able to survive and thus speeding up the
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Pre-Lab-Tyrone Hayes Discussion on Atrazine Chemistry Assignment
2 pages (737 words) , Download 2 , Assignment
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The primary mode of arousing interest in the population regarding the regulation of chemicals is by creating awareness. Awareness of these harmful chemicals can be aroused by publishing articles in newspapers that are easily available to all. Documentaries can be aired by news channels that would educate the population against harmful chemicals.
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Aldehydes:C2H4O Chemistry Research Paper
2 pages (500 words) , Download 3 , Research Paper
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Most of the aldehydes feature a pleasant odour. Principally, they are derived from alcohols through dehydrogenation (the process of removal of hydrogen). It is this process that the name aldehyde originated. The
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History of penicillin Chemistry Essay
2 pages (500 words) , Download 5 , Essay
Free
In general, antibiotics are natural substances discharged by fungi and bacteria into their surroundings, as a means of restraining other organisms. This paper will discuss the history of penicillin from its discovery, development and
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Vikane Gas: Sulfuryl Fluoride Chemistry Coursework
13 pages (3664 words) , Download 2 , Coursework
Free
Sulfuryl fluoride is found to be a highly toxic gas, which can severely impact the central nervous system, the respiratory system, and other vital organs. Depending on the dosage and duration of exposure, the effects of sulfuryl fluoride on humans may be mild, severe, or fatal. Future research in this area should focus on developing a less toxic version of the fumigant on humans, but one that is more efficient for use as a pesticide.
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Aspirin as One of the Major and Oldest Pain Killers Chemistry Assignment
7 pages (1887 words) , Download 7 , Assignment
Free
Stomach upset may result if aspirin is taken on an empty stomach. Aspirin should be swallowed with a cup of water instead of chewing. Patients who are taking aspirin on regular basis for some diseases should inform their doctors about it before proceeding with complex medical procedures such as surgery.
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The development of petroleum refinery Chemistry Essay
2 pages (500 words) , Download 3 , Essay
Free
While Romania is recognized to have built the first large petroleum refinery in Ploesti, the refining of crude petroleum is greatly attributed to the
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Hydraulic Conductivity as Source of Error Chemistry Lab Report
1 pages (345 words) , Download 13 , Lab Report
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The coefficient of soil permeability maybe thus having a difference in vertical and horizontal directions. So, to be sure in the correctness of the value of the coefficient of soil permeability, engineers are needed to expand the testing of soil to the field levels as the lab cannot provide the conditions present in the field (Fetter 200).
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Conservation of mass during a chemical change Chemistry Lab Report
5 pages (1250 words) , Download 2 , Lab Report
In the first set up, sodium carbonate was reacted with calcium chloride. From our knowledge of chemical reactions we know that when you react the two the
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Determination of conductance of various solutions Chemistry Assignment
2 pages (500 words) , Download 2 , Assignment
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From the data obtained it was clear to categorize the solutions in the experiment according to their conductance values. The solutions whose ions dissociate fully in aqueous solution produced the highest conductance while those that dissociated partially gave lower conductance and hence were classified as strong and weak electrolytes respectively.
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Synthesis of Esters from Alcohol Chemistry Essay
2 pages (628 words) , Download 3 , Essay
Free
Alcohols (e.g. ethanol) react reversibly with carboxylic acids (e.g. Propionic acid) to produce esters (e.g. ethyl propionate) and water (H2O). The reaction mechanism involves protonation of the oxygen of the carbonyl group, allowing nucleophilic attack by alcohol or water at the carbon atom or carbonyl group (Dalton 655). 
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Arsenic Delivery Recommendation Chemistry Assignment
1 pages (250 words) , Download 3 , Assignment
Free
In order to transport 1000lbs or 453.59kgs net weight safely and abiding by the guidelines set forth by the Code of Federal Regulations under Title 49: Transportation, the following are the recommendations to maintain the integrity of the shipment, mitigate the effects of accidents causing the spillage of the hazardous chemical to the environment.
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Personal profile about Roger Tsien who is biochemist Chemistry Essay
5 pages (1250 words) , Download 2 , Essay
nature of biological molecules found in the cellular level, the task of studying cells even with the use of microscopes is a tedious task because of the tedious differentiation of biological molecules from each other. Biosensors have been a boon for scientists as they have
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Measuring Mass Using a Centigram and an Electronic Balance Chemistry Lab Report
3 pages (961 words) , Download 7 , Lab Report
Free
Weighing by difference gives more accurate results because when the readings are subtracted then any zero error due to the wrong calibration of the instrument will be removed from the final reading. In the case of weighing a mass directly if the instrument contains a zero error, it will show up in the reading obtained which will then be inaccurate. 
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Characteristics of Alcan Chemistry Case Study
4 pages (1000 words) , Download 2 , Case Study
Free
The faster rate of change is because at Alcan all the departments have their own IT employees who work for them. Thus each department tries to give their most and their best. The cost for IT is around $300 Million for Alcan which is a huge amount and shows its efficiency. Still, $200 million were spent on IT by the IT department.
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Lab biochemistry Chemistry Coursework
2 pages (500 words) , Download 2 , Coursework
Free
All of these graphs have absorbance (340nm) on the y-axis and Time (min) on the x-axis. The graphs were drawn individually however due to a great deal of overlap in the data, it was better to
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Why americans will believe almost anything Chemistry Essay
1 pages (250 words) , Download 2 , Essay
Free
Canned new releases, the language of spin, and the use of trigger words, has influenced the truth and honesty that should be there when events are interpreted. As the sources of news commentary have increased over the years, the transparency
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Research methods and Skills Chemistry Essay
4 pages (1000 words) , Download 2 , Essay
It is now considered as one of the most widely produced chemicals worldwide, with more than 6 billion pounds produced and 100 tons released in the atmosphere, annually.1 Unfortunately, it has
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Standardisation Of 0.02moldm-3 Potassium Permanganate Solution Using Ferrous Ammonium Sulphate (Ammonium Iron (Ii) Sulphate) Chemistry Lab Report
4 pages (1089 words) , Download 3 , Lab Report
Free
Solvent and solute molecules absorb light, and there is a proportion of light radiation which passes through. This proportion of light is known as transmittance abbreviated by T. The proportion of the light which is absorbed by the molecules in the medium is referred to as absorbance which is abbreviated as A.
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Biofuel Synthesis Project Proposals Chemistry Essay
4 pages (1000 words) , Download 2 , Essay
One example of biofuel currently gaining popularity in the market is biodiesel. Based on this fuel’s properties in terms of emissions and price, biodiesel is becoming attractive to car and truck owners.
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Rate of Decomposition of Hydrogen Peroxide Chemistry Lab Report
3 pages (937 words) , Download 4 , Lab Report
Free
The decomposition of hydrogen peroxide was studied. The concentration of hydrogen peroxide at intervals of 5 minutes was recorded through the titration of the reaction mixture with standard potassium permanganate. Fe3+ acted as a catalyst. Graphs that complied with the first-order reaction were drawn when values of Vt against t, and ln Vt against t were drawn.
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Nuclear Power Chemistry Research Paper
6 pages (1686 words) , Download 2 , Research Paper
Free
The latest and short-term solution which is considered these days is the use of nuclear power. Nuclear energy is best utilized to the middle and high scale of generation of electricity. In 1939, Nuclear energy was introduced with the discovery of nuclear fission. However, in 1789, Uranium was discovered by a German scientist named Martin Klaproth.
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The Quality of Tap Water Sample Chemistry Lab Report
1 pages (351 words) , Download 3 , Lab Report
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Guidelines towards achieving a contamination-free and safe water are followed strictly. The source of water must be deep enough so that contaminants coming from the soil cannot reach it. After the water has been pumped up to the storage facilities, the water is further sanitized using chlorine to kill harmful microorganisms.
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Hazardous Materials Chemistry for Emergency Responders Chemistry Essay
1 pages (296 words) , Download 2 , Essay
Free
The allotrope is tremendously toxic and can be lethal. Moreover, white phosphorus can cause deep slow-healing burns and is highly inflammable and reactive to the extent that a fire can erupt, however, while burning white phosphorus can also cause damage to the kidneys, heart, or liver. Furthermore, prolonged skin exposure to phosphorus can cause dermatitis.
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An Energy Wedge Is a Strategy Chemistry Lab Report
1 pages (569 words) , Download 3 , Lab Report
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The three institutions are in collaboration with the aim of reducing the impact of carbon energy on the atmosphere. The three institutions wish to come up with the best energy wedge that can be implemented and reduce carbon emissions by half in the next 50 years or maintain the current rate holding it constant for the same number of years.
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Energy Generation and conservation in Fuel Cell Chemistry Essay
4 pages (1000 words) , Download 2 , Essay
Free
According to the text, global warming is a steady rise of the world temperature which causes melting of the North and South Pole regions causing rising of the sea tides. That's why fuel cells have a great advantage as compared to other traditional sources of energy for they are more efficient and cause less pollution of the environment.
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The Error Rate and Concentration of the Unknowns Chemistry Coursework
2 pages (635 words) , Download 5 , Coursework
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Error value for calculating the sample concentration using peak area is given by the formula, Error rate = (standard deviation for peak area/average of peak area) 100 % Error rate = (1338029.784/69124507.67)100 % Error rate for peak area = 1.9356 Error value for calculating the sample concentration using peak height is given by the formula.
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Testing Old Cathodic Protection on Ohio Bridge Decks Chemistry Essay
1 pages (250 words) , Download 2 , Essay
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It is also not known whether the method affects the durability of the bridges. The corrosion method being tested is impressed current cathodic protection (ICCP). A titanium mixed metal oxide is employed as an anode, which is applied on the upper
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Undergrad research (Sonicator) Chemistry Research Paper
2 pages (500 words) , Download 3 , Research Paper
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Ultrasound refers to sound waves that have higher frequencies in comparison to the human ear. Ultrasound usage is divided into two including the high frequency and low
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