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Chemistry Essays

Result for Subject Chemistry:
1168 essays
The Structures of Starch with Glycogen and Cellulose Chemistry Report
4 pages (1074 words) , Download 0 , Report
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A catalyst is a chemical that speeds up the reaction without itself being consumed. Enzymes are made from several to more than a thousand amino acids long and the specific sequence determines the function.  An enzyme has many levels of the organization and has primary, secondary, tertiary, and quaternary structures.
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Modelling the Amount of a Drug in the Bloodstream Chemistry Lab Report
5 pages (1526 words) , Download 2 , Lab Report
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In part A, a graph showing the amount of a drug in the bloodstream over 10 hour period for an initial dose of 10 µg will be used to find a suitable function to model the data given in the graph. In part B, graphs will be made and discussed for a whole day considering the doses being continually administered during regular 6 hour periods based on the data given in the graph and using the model (function) derived in part A.
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The Perspective of Using Carbon Nanotube in Everyday Life Chemistry Literature review
32 pages (8000 words) , Download 2 , Literature review
Nanotechnology is essentially the engineering of functional systems at the molecular scale. Carbon Nanotube (CNT) is an application of nanotechnology which has the potential of revolutionizing the way we carry out different types of works, the way medical fraternity treats patients, the functioning of disaster management teams etc.
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Nutrition Facts of Food Chemistry Assignment
4 pages (1323 words) , Download 0 , Assignment
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They are cellulose, lignin, and many hemicelluloses – found in vegetables, wheat, and most grains Sugar; 11 g (dextrose, maltose, high fructose honey). Knowing how to read an ingredient list puts you many steps ahead of a naïve buyer.
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Chemical Substances with Psychoactive Effect Chemistry Coursework
5 pages (1533 words) , Download 1 , Coursework
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The psychoactive drugs form a group of pharmacological products that are remarkable in that they all act on the central nervous system or the brain and therefore have a significant impact in the management and treatment of diseases and conditions associated with the central nervous system and the brain.
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Carbon Monoxide as a Chemical Hazard in the Workplace Chemistry Coursework
12 pages (3163 words) , Download 1 , Coursework
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Carbon Monoxide is a poisonous chemical. Its use in the manufacture of different products cannot be ignored. At the same time, the health hazards related to it must also not be ignored. It is the moral duty of every employer to ensure the maximum safety of his workers. The workers must also follow all the necessary steps to avoid any accidents. 
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Global Problem of Substance Abuse Chemistry Essay
4 pages (1238 words) , Download 0 , Essay
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I think the participants should regularly attend the meetings and become active members who speak in meetings and share from their experience. If they don't keep attending these meetings, or rather attend them but sit in the back and not talk and interact with others, it will do them little good, if any.
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The Fundamental of Biochemistry Chemistry Case Study
22 pages (5755 words) , Case Study
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The study of enzyme kinetics also represents the principal way to identify potential therapeutic agents that selectively enhance or inhibit the rates of specific enzyme catalyzed. Together with site directed agenesis and other techniques that probe protein structure, kinetic analysis can also reveal details of the mechanism.
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The Nature of the Electron Transfer Agent in the Dimmer Photolysis Chemistry Research Paper
5 pages (1308 words) , Download 0 , Research Paper
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Tetrabutylammonium hexafluorophosphate was used in all the experiments, used as received. Spectrograde solvents were used in all the spectroscopic and electrochemical measurements and included acetonitrile, dimethylformamide, methylene chloride, and tetrahydrofuran. All these were stored under inert atmosphere and used as received
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Microbiology of Milk Chemistry Research Proposal
14 pages (3778 words) , Download 3 , Research Proposal
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The consumption of soured milk preparations is widespread as it is associated with having therapeutic values. These are known by different names in different parts of the world. Normally Streptococcus, Lactobacilli and Saccharomyces species are used in starter cultures. The products like yoghurt, curd, kefir etc. come into this category.
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How Molecule's Structure affect the pKa Chemistry Lab Report
5 pages (1250 words) , Download 3 , Lab Report
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Photoacidity is one of the best ways of determining the impact of a molecule’s structure on the pKa of ground and excited States. In many of the organic molecules containing an even number of electrons, an arrangement characterized by the ground state having entire electron spins paired the net spin angular momentum turning to zero usually occurs.
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Mint Oil, Micro Bubble and Chocolate Preparation Chemistry Dissertation
2 pages (500 words) , Download 3 , Dissertation
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Accrding to the report the mint leaves are grinded using grinder and mixed with a liquid to produce oil. This liquid is then passed through ultrasonic waves. The waves propagates through the waves in alternating high and low-pressure cycles. The coconut and the cooking mallet have different rates of pressure.
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PhET Simulation - Sugar and Salt Solutions Chemistry Assignment
1 pages (250 words) , Download 2 , Assignment
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Part A Only barium nitrate precipitates. Problem 4.36 Part A KOH, NH3, HNO3, KClO2, H3PO3, CH3COCH3 Oxidation-Reduction Reactions Part A N2 (g) +3H2 (g) -----> 2NH3 (g) N2 is a redactor and it's oxidized in the reaction N2 (0) - 2x3e- ---------> 2N (3+)
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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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Molecular and ionic equations Chemistry Assignment
1 pages (250 words) , Download 2 , Assignment
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The mas of copper could be in excess as it may have oxidized to form copper (II) Oxide and also due to the side reactions that takes place.
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Post-laboratory Assignment Chemistry Lab Report
2 pages (500 words) , Download 2 , Lab Report
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Step 5: Copper recovery from copper (II) sulfate Molecular Zn(s) + CuSO4 (aq) = ZnSO4 (aq) + Cu(s) Ionic Zn(s) + Cu2+(aq) = Zn2+(aq) + Cu (s)
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Complexometric Titration of Calcium Chemistry Lab Report
4 pages (1000 words) , Download 4 , Lab Report
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The experiment has various application both in the laboratory and industrial applications. Drug manufacturing firms, for instance, use the procedure to test for the presence of anti-acid in drugs. The titration involves complex reactions where molecules or ions are formed when metals ions react with ligands or complexing agents which represent either one or more molecules.
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Chemistry and Society Chemistry Essay
8 pages (2000 words) , Download 2 , Essay
Free
 Aspirin, also known as acetylsalicylic acid, is a medicine that is mainly used to treat fever, pain and inflammations (King and Brucker, 2010). The medicine is also used at long-term to assist in preventing strokes, heart attacks and blood clots. 
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Effects of Salt on the Melting Rate of Ice Chemistry Lab Report
1 pages (250 words) , Download 10 , Lab Report
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The results of the experiment were that salty ice melted faster than pure ice. The later melted with an average of 200 minutes while the former melts at an average of 160 minutes.
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Water Chemistry Chemistry Essay
1 pages (250 words) , Download 5 , Essay
Free
Through conductivity, the quantity of inorganic solids dissolved in water can be established. Some of the inorganic solids include nitrates and sulphates. Organic compounds are poor electric conductors hence their presence in water can also be established.
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Prpperties of an element Chemistry Essay
2 pages (500 words) , Download 2 , Essay
Free
You will submit the softcopy (attachment) to boylewm@yahoo.com This table should be typed. You may use any sources you wish (books, periodicals, Internet sites) to collect the data but these sources must be properly cited and the references
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Chemistry - Nuclear Test Ban Chemistry Essay
1 pages (318 words) , Download 3 , Essay
Free
The article talks about the formation of the comprehensive nuclear test ban treaty that imposed a ban on nuclear tests across the world. This was after a series of nuclear tests that lead to environmental pollution and even death. This ban ensured that there is proper handling of chemicals to reduce their exposure to the environment.
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Smoldering Combustion by TJ Ohlemiller Chemistry Essay
1 pages (284 words) , Download 2 , Essay
Free
It happens at a slower rate to allow oxygen to fan the heat that attacks the surface of the concentrated-phase fuel. The smoldering process also offers a way of burning that initiates when the heat source cannot produce the required flame. The author indicates that physical and chemical factors favor the combustion process (Ohlemiller 2-220).
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Potassium Chemical Element Chemistry Essay
2 pages (730 words) , Download 2 , Essay
Free
Potassium element plays a pivotal role in the body and plant systems. According to Roza, (2007), Humphrey Davy discovered the element 1807. He managed to isolate this element through the electrolysis method making it the pioneer of the use of this approach in isolation of other elements (Shaposhnik, 2007).
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Identification of a Compound by Mass Relationships Chemistry Lab Report
2 pages (471 words) , Download 20 , Lab Report
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A carbonate refers to a salt of carbonic acid that is comprised of a carbonate ion CO32-. These salts usually form with metal cations though the term can also be used to refer to the ester of a carbonic acid, an organic compound containing the carbonate group. Metal carbonates decompose on heating, liberating carbon dioxide from the long-term carbon cycle and leaving the oxide of the metal.
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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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Construction and Testing of Solid State Oxygen Sensor Chemistry Lab Report
10 pages (2584 words) , Download 2 , Lab Report
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The three experiments carried out by the author are of significant importance in chemistry, especially the application of new technologies incorporated within them. In this first experiment, the synthesis and characterization of ruthenium complex, the Ruthenium compound will be characterized by UV-Vis, spectroscopy, and cyclic voltammetry.
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Industrial hygenist Chemistry Speech or Presentation
1 pages (250 words) , Download 2 , Speech or Presentation
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In this case, the prevailing exposures are 700 ppm for 3 hours, 1300 ppm for 2 hours and 900 ppm for 3 hours. Where; TWA = Time-Weighted Average, Ca = Concentration of air
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Compare Newton and Goethe's theory described in a particular video Chemistry Essay
2 pages (500 words) , Download 2 , 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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The Solvay Process for Sodium Carbonate Chemistry Research Paper
5 pages (1476 words) , Download 5 , Research Paper
Free
The final important part of the reaction normally involves the decomposition of sodium bicarbonate NaHCO3 through heating at high temperatures (calcination) whereby sodium bicarbonate NaHCO3 precipitates and converts to sodium carbonate (Na2CO3) while both carbon dioxide (CO2) and water (H2O) are liberated as gases. 
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Physical Chemistry Chemistry Lab Report
4 pages (1302 words) , Download 2 , Lab Report
Free
There have been studies on the performance of solid-state oxygen sensors before with emphasis on other metals and materials in construction and calibration. This paper, however, focuses on the use of silicon rubber as the main material in construction and the use of different ratios and volumes of oxygen, air, and nitrogen in the calibration of the sensor.
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Empirical Formula of Magnesium Oxide Chemistry Lab Report
6 pages (1500 words) , Download 4 , Lab Report
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The author states that the formula of Magnesium can be predicted with the use of atomic theory, which leads to the electron structure of Magnesium and Oxygen atoms. The aim of the experiment is to compare the empirical formula of Magnesium Oxide developed after the experiment with the formula developed during the experiment.
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Chemical reaction paper Chemistry Essay
1 pages (250 words) , Download 2 , Essay
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The bleaching effect is achieved through oxidation or reduction process. The most commonly used bleach agents made of chlorine compounds decolorizes by oxidation. Oxidation refers to the process whereby the compound removes oxygen from one compound or
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John Dalton's Atomic Theory Chemistry Essay
4 pages (1000 words) , Download 2 , Essay
It was early Greeks who tried to analyze and explain nature. In about 460BC, Democritus, a Greek philosopher first introduced the concept of matter. However after this, the theory almost laid dormant till in 1803, John Dalton proposed his
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The Aromaticity Chemistry Coursework
2 pages (466 words) , Download 2 , Coursework
Free
Aromaticity is a characteristic of any planar system in which there is complete delocalization of pi electrons in the ring, and the system containing 4n+2 pi electrons in the ring is called aromatic. Examples: Benzene, naphthalene, anthracene, etc.
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The Ag element Chemistry Lab Report
2 pages (500 words) , Download 2 , Lab Report
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According to Hansen (15), the information provided by these groups link the origin of Ag to some stars. For instance, Crawford et al. (1998) claim to have identified Ag in seven stars. In relation to their assertion,
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Analytical chemistry assignment 12 questions Chemistry Essay
5 pages (1250 words) , Download 2 , Essay
An analyte can be defined as the substance or component that is of interest in a chemical analysis procedure. It is the chemical constituent that is being measured. A matrix, on the other hand, can be defined as the chemical components of a
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Synthesis of Tris Pyrazolylborate Chemistry Lab Report
4 pages (1000 words) , Download 2 , Lab Report
Free
Trispyrazolylborate (Tp) is an organic anionic tetradentate or tripodal ligand that has the chemical formula [HB (C3N2H3)3]. Trispyrazolylborate specifically refers to the derivatives substituted on the pyrazolyl rings. In the resonance structures of this compound, the nitrogen centers that are not bonded to boron are basic.
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Organic Chemistry: Polymers Chemistry Research Paper
8 pages (2917 words) , Download 2 , Research Paper
Free
Although many people of polymers as mere plastics used in making household objects and packaging, polymers have a variety of applications in everyday life. Polymers and composites, i.e., materials that result from a combination of more than two materials, are essential to the modern dentistry industry.
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Acid-Base Equilibria Chemistry Lab Report
1 pages (250 words) , Download 8 , Lab Report
Free
This will raise the milliliters or the volume of the titrant added, decreasing the molarity or making it too low. That is the reason why one want it a very light color and not a dark rich color. The other source of error is the use of impure
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Acid-Base Equilibria Chemistry Lab Report
1 pages (250 words) , Download 4 , Lab Report
Free
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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Physical Chemistry Lab Report Chemistry Lab Report
7 pages (1750 words) , Download 2 , Lab Report
This paper looks into the experimental procedure, findings and discusses the findings from generation of the light using two quenchers. Quenching of luminescence occurs when impurities are added to a phosphor ,when
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Chemical composition of latent fingerprints using GC/MS Chemistry Essay
3 pages (750 words) , Download 2 , Essay
The detection and chemical characterization of such impressions made on surfaces can be done using the concept of GC-MS machine. In addition, quantification is possible through the use of the Mass spectrometry method. It would not be possible to
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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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Phosphoric Acid Fuel Cell Chemistry Essay
4 pages (1112 words) , Download 3 , Essay
Free
The electrolyte in these cells is a concentrated solution of potassium hydroxide and sodium hydroxide (Onovwiona and Urgusal 384). It fills the space between the electrodes. Hydrogen gas and oxygen gas are simmered using porous electrodes, and the overall cell reaction involves a combination of hydrogen and oxygen gases from water.
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Using Carbon Fibre Reinforced Polymer Chemistry Assignment
2 pages (500 words) , Download 3 , Assignment
Free
According to the research findings, CFRP composites are one of the world’s toughest and commercially viable fibers in terms of tension. The rigidity of any component is reliant on its modulus of elasticity. CFRP components have an elasticity modulus of 20 MSI, which is relatively equal to a strength of 500 MSI, while steel has 10 MSI.
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Separation of Colored Molecules Based on their Molecular Chemistry Lab Report
4 pages (1000 words) , Download 2 , Lab Report
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The aim of the experiment was accomplished as the mixture of hemoglobin, cytochrome c, and blue dextran was able to be separated. Also the molecular weights of cytochrome c and hemoglobin we determined experimentally and their values compared to the theoretical values. Blue dextran remained in the column as it has large molecules thus it could not be eluted. From this observation, the external volume of the gel filtration column was determined
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NMR Determination of Keto-Enol Equilibrium Constant Chemistry Lab Report
1 pages (358 words) , Download 10 , Lab Report
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NMR has been very effective in organic chemistry. In determining the Keto-Enol equilibrium constant, Proton NMR spectroscopy is used to evaluate a number of keto-mixtures. The spin-spin splitting and the chemical shift pattern are employed. The equilibrium constant is affected by both temperature and solvent.   
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The use of Isotopes in medicine Chemistry Essay
4 pages (1000 words) , Download 2 , Essay
The radiation from the isotopes destroys or weakens the targeted cells in the human body. Other isotopes are significant in the sterilization of the medical equipment and products. It is noteworthy that the utilization of
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Syntesis of (1R,2S)-1-(m-Bromophenyl)-3-methyl-1,2-butanediol Chemistry Assignment
1 pages (250 words) , Download 2 , Assignment
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N-Bromosuccinimide (NBS) is the reagent used commonly for this type of bromination as it provides a low concentration of molecular bromine. Each molecule of hydrogen bromide that is formed is converted into Br2 by NBS (Carey and Sunberg 371).
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