The Electronic Structure of Atoms
The Electronic Structure of Atoms Chemistry Assignment
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Spin quantum number ‘ms’ is related to spin of the electron that can be either clockwise or anticlockwise. Its value is +1/2 or -1/2 (Quantum Numbers and Electron Configurations, 2014). Aufbau is a German word that means
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Viscosity and polymers
Viscosity and polymers Chemistry Lab Report
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For weak intermolecular forces, as in toluene and Xylene mixture remains constant, i.e. equal to the viscosity of the individual liquids. Viscosity is inversely proportional to the intermolecular forces in a solution. Viscosity of water is
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Exploring polymerization reactions
Exploring polymerization reactions Chemistry Lab Report
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Therefore, the next step would be to analyze some of the chemical properties of styrene. Polystyrene is brittle, less viscous and leaves a dry film. These properties allow us to conclude that polystyrene is formed. The mixture becomes thicker (viscous) while
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Element that undergoes radioactive decay
Element that undergoes radioactive decay Chemistry Article
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e radioactive tracer is absorbed by the muscle of the heart in proportional direction to blood flow, then to the muscle area, during rest and in the post stress. The variation in myocardial absorption of technetium after and before stress identifies heart muscle areas that are
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1 day diet diary
1 day diet diary Chemistry Essay
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The decision for choosing this day for carrying out this activity was based on the fact that this served well to illustrate my typical day. Much consideration was taken to
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The Synthesis of Sulfanilamide
The Synthesis of Sulfanilamide Chemistry Lab Report
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Most of these drugs are antibiotics and they act by inhibiting folic acid biosynthesis. The general structure of sulfa drugs is as indicated in the graphic below. The use of the drug is based on the concept of metabolic antagonism. Sulfa drugs
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Compounds
Compounds Chemistry Assignment
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Many seafood including fish, seaweed, and shellfish are very rich in iodine. Other products that contain iodine include dairy products derived from milk and milk. Other consumer products that contain iodine
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Biochemistry
Biochemistry Chemistry Case Study
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It is conversion of pyruvate into lactate to produce extra amount of energy which is 2 molecules of ATP’s. The enzyme involved in this process is called lactate
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Solvent and Polarity Effects in Thin Layer Chromatography
Solvent and Polarity Effects in Thin Layer Chromatography Chemistry Lab Report
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One needs to prepare the TLC plate first before testing for polarity of the solvents. The thin Layer Chromatography (TLC) largely helps to determine the purity of compounds. This technique also becomes helpful in identifying the contents of a mixture. TLC separates
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Track acrylamide source from polyacrylamide gel that used in Hydraulic fracturing by stable isotopes method
Track acrylamide source from polyacrylamide gel that used in Hydraulic fracturing by stable isotopes method Chemistry Research Proposal
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Contamination of soil and water by acrylamide released from poly-acrylamide degradation from hydraulic fracturing as friction agent is seen to be a major concern. In this case, carbon stable isotope ratios will be used in
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Measuring The Heat of Decomposition of Hydrogen Peroxide
Measuring The Heat of Decomposition of Hydrogen Peroxide Chemistry Lab Report
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By measuring how the temperature changes when H­2O2 and a catalyst are mixed, it is possible to determine the enthalpy of decomposition H­2O2. This experiment will determine the enthalpy of decomposition of H­2O2 ­when it is mixed with potassium
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Relative Rates of Nucleophilic Substitution Reactions
Relative Rates of Nucleophilic Substitution Reactions Chemistry Lab Report
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the effects of the nature of the leaving group, the size of the nucleophile as well as the polarity of the solvent on the rate of SN1 and SN2 reactions. Primary, secondary and tertiary alkyl bromides were reacted with NaI in presence of acetone and ethanol solvents to determine
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Acid-Base Equilibria
Acid-Base Equilibria Chemistry Lab Report
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and vinegar was placed under burette. NaOH from the burette was slowly added to the flask, as the flask was being swirled until the solution in the flask was a faint permanent pink. The final volume for NaOH was recorded on the data sheet. At equivalence point, enough base
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Protective equipment
Protective equipment Chemistry Essay
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d). This reactive property of chemicals is employed in a wide range of industries such as food production, material production, pharmaceutical, and others. Conventionally, many such industries do not always categorize the unique behaviour of
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Portable X-ray fluorescence
Portable X-ray fluorescence Chemistry Research Paper
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In which case, three experiments were set up with the aim of exploring the concept of XRF. For the first experiment, there is analysis of gold in
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Dangers of Genetically Altered Foods
Dangers of Genetically Altered Foods Chemistry Essay
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cottish researcher at the Rowett Research Institute located in Aberdeen, the processes of altering the genetics of food causes damage to a mammal’s digestive and immune systems. In his studies, the researcher discovered that when rats were fed with transgenic potatoes they
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Stereo Electronic Effects in Fuel Dehydrating Icing Inhibitors
Stereo Electronic Effects in Fuel Dehydrating Icing Inhibitors Chemistry Research Paper
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Although the water component is normally at low concentrations (< 0.2%) and can easily be vaporized, free water is a major contaminant that can potentially cause serious damage to jet engines (Taylor, 2008, p.2401). The icing on the critical components of the jet fuel system is particularly attributed to the fact that solubility normally decreases with decreasing temperatures.
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Final Question 3
Final Question 3 Chemistry Essay
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Sub-acute exposure entails frequent exposure that might last for a period of a single month whilst sub-chronic exposure entails for a period that ranges from one month to corresponding three months (Noll et al, 2014). These exposure limits are normally applicable to the
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Chemical Principles
Chemical Principles Chemistry Assignment
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Since there are a total of 28 electrons, half of them has a value of -½ and half of them has a value of +½. Therefore there are 14 electrons having a value of +½ ms A5 For each of the following molecules, give the hybridization of the central atom
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Chemistery
Chemistery Chemistry Essay
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Identify the sXRORROArOHR1RRR1R2OHR1R2R4R3ORRROOROROHR2R1R–X + –C≡NR–C≡NR–X + –C≡C–RR–C≡C–Rynthons A, B and C (in the form (R1)+/(R2)–). (iii) Another reagent is required for the reaction of D
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Organic Chemistry Lab: Isolation of Caffeine from a Tea Bag
Organic Chemistry Lab: Isolation of Caffeine from a Tea Bag Chemistry Lab Report
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Xanthines are naturally occurring family of compounds known to possess stimulant properties. Green tea is one of the most famous beverages
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Compare Newton and Goethes theory described in a particular video
Compare Newton and Goethe's theory described in a particular video Chemistry Essay
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For instance, shadows are grey in their real context but appear greenish blue to the eyes. The difference in appearance is as a result of the fact that the eyes try to counter the strong orange-red light from the sun. A cone exposed to two opposite
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Cleaning up oil spills
Cleaning up oil spills Chemistry Research Paper
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However, to fully comprehend how the cleaning up process of oil spill works, it is necessary to understand the chemistry behind mitigation of oil spills. There are several ways in controlling and cleaning up oil spills. These methods are usually combinations of
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Raman Spectroscopy of Toluene and Fluorescence Spectroscopy of Rhodamine 6G
Raman Spectroscopy of Toluene and Fluorescence Spectroscopy of Rhodamine 6G Chemistry Lab Report
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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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Proposal #1
Proposal #1 Chemistry Research Proposal
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These components include; pigments, binders, volatile substances and additives. A binder serves to hold the pigment to the surface. Most binders are polymeric in nature and are either suspended or
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Extraction of Metals from their Ores Worksheet
Extraction of Metals from their Ores Worksheet Chemistry Coursework
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to galvanize metals and to make batteries/ before it was recognized as a separate element, it was used to make brass by ancient civilizations/ it is hard, brittle, a fair conductor of electricity and a moderately reactive element It is used to plate steel, to make tin cans and
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Statement of Purpose
Statement of Purpose Chemistry 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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Preparation of sample for NMR analysis and integration
Preparation of sample for NMR analysis and integration Chemistry 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
The Bio-Oil Over the Catalysts of Ni-CNTs Chemistry 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
Nuclear power as an alternative energy source Chemistry Essay
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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
Dmitri Mendeleev vs. Lothar Meyer who is the father of the periodic table Chemistry 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
Evaluation of Three Different Types of Spectroscopy Chemistry 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
Pick a chemical industry or book chapter Chemistry Essay
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The majority of silicon found in the 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
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Atomic Weight of Magnesium
Atomic Weight of Magnesium Chemistry 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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Sulfur recovery processes
Sulfur recovery processes Chemistry Essay
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However, Claus Process is not a pure gas purification process (Kohl, 1997). It applies vital technology in the gas refinement process, owing to the measures it applies to avoid air pollution, through the use of a tail
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Quantitative Analysis of a Glucose Solution
Quantitative Analysis of a Glucose Solution Chemistry 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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Food chemistry
Food chemistry Chemistry Assignment
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Interesterification is reactions in which fatty acid compound esterified to a glycerol backbone is reacted with fatty acids, alcohols or esters. When applied to oils and fats, it is a reaction between different triglycerides with rearrangements of the acryl groups within
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Zirconium Oxide Manufacturing
Zirconium Oxide Manufacturing Chemistry Essay
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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
Antibacterial and biomedical applications of gold nanoparticles and graphene composite Chemistry Essay
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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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Chromatography
Chromatography Chemistry Lab Report
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e polarity of the solutions relative to the stationary phase caused the observed differences among the chromatograms obtained using the different solvents. On the other hand, the relative polarity of the dyes resulted to differences in their interactions with the phases, and
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Introduction How does money become contaminated with cocaine
Introduction How does money become contaminated with cocaine Chemistry 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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Shown in the instruction
Shown in the instruction Chemistry Essay
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From the knowledge of how the elements combine, we can then be able to explain specific characteristics that are observed in different substances all around us. Deeper understanding can even assist in the
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Pyrolysis of Aryl Sulfonate Esters in the Absence of Solvent: E1 or E2
Pyrolysis of Aryl Sulfonate Esters in the Absence of Solvent: E1 or E2 Chemistry 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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Density Lab
Density Lab Chemistry Lab Report
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ich falls within the theoretical range of 0.35 – 0.67 depending on the class of pine (which in this case is near the value of kind radiata at 0.48). Similarly, the experimental density of oak which is 0.75 g/ml is well within 0.6 – 0.9 and closest to the true values 0.74,
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Compare and contrast thermodynamics and kinetics
Compare and contrast thermodynamics and kinetics Chemistry 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
Exponential Decay of a Transition Metal Complex Ion Chemistry 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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Discovery of electrons(J,J Thomson)
Discovery of electrons(J,J Thomson) Chemistry Essay
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J.J Thomson discovered the electron in 1897 and set the basis of forming a detailed model of the atom.. His areas of interest included conduction of
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Aldehydes:C2H4O
Aldehydes:C2H4O Chemistry 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
History of penicillin Chemistry Essay
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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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Aspirin
Aspirin Chemistry Assignment
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Even though the discovery or isolation of Aspirin took place in 1897 through a German chemist; Felix Hoffmann, many scientists worked behind the curtain from 1826 onwards to identify a pain relieving drug. In 1828, Johann Buchner, professor of
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