Free Chemistry Essay Examples and Topics | Page 15

Organic Chemistry lab Determination of the Structure of a Natural Product in Anise Oil Chemistry Assignment

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The major component in anise oil has the chemical formula C10H12O. It is a hydrogen deficient component having less hydrogen atoms than would be required for every carbon atom to have the maximum amount of attached hydrogen

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Synthesis and Characterization of the Polyhalogen Complex CsICl2 Chemistry Lab Report

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This lab report covers on the laboratory preparation of Cs [ICl2]; a polyhalogen complex containing cesium as the central atom, and iodine and two chlorine ions as the attached halogens. The main purpose of this experiment involved evaluation of a polyhalogen

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Creation of the Food Dye Coloring of a New Drink Chemistry Lab Report

7 pages (1500 words) , Download 2 , Lab Report

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Developing cost-effective and viable technology to prepare food color and how it is applied in foods has become a challenge as well as a daily need. In this experiment, the dye for the new drink will be developed simply by copying the color profile a beverage that has been colored artificially. The principle of absorption spectroscopy.

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Answering Questions Concerning Biochemistry Chemistry Assignment

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A specific translocase exchanges ADP outside the mitochondria for ATP inside the mitochondria. The end products are water, ATP, and NAD+ or FAD. Cyanide, azide, and CO are metabolic poisons, which are so toxic to us because they block the transfer of electrons to oxygen hence inhibiting the whole process

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What's a terpene Chemistry Essay

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es) which are found in plants are classified under secondary compounds because their chemical synthesis has evolved more hence making such plants better adapted to local ecological niche. The plants that produce terpenes are mainly aromatic herbs that have pleasant smell and

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Physical Chemistry Coursework Chemistry Coursework

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The process is irreversible because the oxidation of ascorbic acid produces Dehydroascorbic Acid which is very unstable and it decomposes quickly before the reduction cycle can convert it back, thus due to Dehydroascorbic instability the process is irreversible (Naylor, 1995).

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Chemistry of Alkenes Chemistry Lab Report

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This was shown when a green flame appeared using the Belstein test, indicating the presence of unreacted alkyl halide. The presence of the C-Cl stretch in the FTIR spectrum of the product also indicated the presence of

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Interactions of hazardous materials Chemistry Essay

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On the other hand, the label with the yellow diamond at 3 o’clock depicts the liquid that is dripping out of the tanker is unstable but do not

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Relationship between Pressure, Temperature, Volume, and the amount of Gas Occupying an Enclosed Room Chemistry Essay

2 pages (529 words) , Download 3 , Essay

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From figure 1, it has been seen that the volume is directly proportional to temperature at constant pressure. From figure 2 it is observed that the volume is directly proportional to temperature and from Figures 3 and 4 it is observed that the volume is inversely proportional to pressure. All these are the ideas behind the ideal gas law.

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The United States Pharmacopeial Convention Chemistry Essay

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The first edition of United States Pharmacopeial convention featured the preparations and drugs that were the best and also defined terminologies that facilitated communication among the physicians. These physicians were responsible for medication administration and prescription and the pharmacists who were preparing them.

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Theoretical Models in Explaining the Behavior of Transition Metal Coordination Complexes Chemistry Assignment

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The strongest oxidizing agent is MnO-4. This is because it has the largest positive value of standard electrode potential (Applications of standard electrode potentials n.d.). b) Determining whether VO2+(E=1.0) can oxidize I- to I2-(E=0.535). According to the standard electrode potentials for the two species, VO2+ has a high positive value as compared to I-/I-2.

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Artificial Hip Replacement Chemistry Case Study

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Interference with normal body functions – the compatibility issues of the joint commonly relate to the functional capacity of the material about other body parts. Some materials commonly might produce substances that have negative effects on the functioning of other parts. Such materials become considered inappropriate for use in joints.

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The Regulation of Enzyme as a Control for a Cell Chemistry Essay

4 pages (1082 words) , Download 2 , Essay

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The enzymes are also temperature sensitive and will always cease their operation due to inactivation or they can be denatured due to low and high temperature respectively. The optimal temperature when enzymes best operate is between 37-41 degrees Celsius, Enzymes play a very pivotal role in the body and thus require constant regulation to ensure proper functionality.

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Nuclear Magnetic Resonance Spectroscopy Chemistry Lab Report

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The aim of the experiment is to determine the structure of the C10H18O molecule through the utilization of the NMR spectrum which has proved to be a significant utility in the elucidation of molecular structure since the properties displayed can be associated with the chemical perception of the molecular structure.

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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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The Influence of Adding a Second Emulgent System on the Formulation Chemistry Assignment

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A combined emulgent system, rather than one emulgent whose HLB value is closest to the required HLB, usually gives a more stable interfacial film. Buffers can be included in the formulations for the maintenance of chemical stabilities. Additionally, physiological compatibility, or control tonicity is also ensured with the addition of a second emulgent.

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Stages of Scaling Development Chemistry Essay

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The removal is dependent, relative to the fluid’s cut-off forces and also the level of persistence of the deposit. agingdeposition starts happening, as soon as the process of aging occurs. Throughout this stage, there might be the conversion of crystal or chemical structure, whichever may increase or decrease the force of the deposition with time

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Synthesis of -carbolines as novel CDK4 inhibitors Chemistry Lab Report

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Intuitively, this other method involves the formation of an amide then cyclizing it to yield α-carbolines even though it is always a poor yield. Despite limited success associated with the process, the reactions involve proved to be better as supported by

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Callbration of air sampling pump Chemistry Lab Report

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In which case, the results are expressed in mass per volume units. The process can only be successful when the representative sample of air is sampled and the volume is also determined accurately. This formed the basis for the modern calculation of flow rate

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Anomalies of Water Chemistry Essay

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Subsequently, such liquids cannot form droplets because they cannot resist stretch and will easily break apart. The uniqueness of water’s high cohesion is directly associated with its molecules, which have very strong attraction forces between them. Knowing that water molecules are formed by two hydrogen atoms and one oxygen atom.

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The Invention, Construction and Function of the Laser Chemistry Essay

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The word LASER is an acronym for Light Amplification by Stimulated Emission of Radiation. Albert Einstein first identified the natural process constituting the stimulated emission of radiation of laser beams. “The invention of the laser was one of the groundbreaking scientific achievements of the twentieth century”.

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Syntesis of (1R,2S)-1-(m-Bromophenyl)-3-methyl-1,2-butanediol Chemistry 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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My element / Chemical disaster Chemistry Essay

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it reacts violently with water to give off hydrogen gas. It also reacts with acids and all non-acid metals like fluorine, nitrogen, chlorine and sulphur (Johnson, 2007, p73). This element in the human body helps in improving the normal

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Qualative Analysis Lab Report Chemistry Lab Report

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The hypotheses set in this experiment were based on the specific cation being tested and it was proven null if the color concurred with the

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Sir Walliam Ramsay Chemistry Essay

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29). His uncle Sir Andrew Ramsay was the famous geologist. After completion of early education at Glasgow Academy, Ramsay attended the University of Glasgow under the supervision of known chemist Thomas Anderson. He did his

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Distillation and Gas Chromatography: Separation of Hexanes and Toluene Chemistry Lab Report

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The methods utilized in the experiment involved precise raising and falling of temperatures at specific temperature ranges to obtain three

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Soil concentration Chemistry Essay

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Cac2+ is an important mineral nutrient in soil for plant life, but is harmful if in excess. The main cause of soil salinity can be attributed to the water management practices used on a given soil

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Incorporation of Lead in Blood and Body, Leading to Lead Poisoning Chemistry Assignment

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Lead is still widely used for car batteries, pigments, ammunition, cable sheathing, weights for lifting, weight belts for diving, lead crystal glass, radiation protection and in some solders. It is often used to store corrosive liquids.

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Introduction ((((Fluoride in Tea sample)) Chemistry Essay

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A reference electrode is used in conjunction with the ion selective electrode to measure the potential using an electrometer or pH meter. The Nernst equation relates electrode potential to the logarithmic concentration of the

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Absorption Spectroscopy Chemistry Lab Report

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Comparing it with the LD50 (6-10g/kg body weight), it was found that the level of Allura Red dye in the water is within normal levels. Absorption spectroscopy is an important analytical tool that is

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Catalysis and catalysts Chemistry Essay

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Un-catalyzed and catalyzed reaction main deference is that there is a difference on their activation energy, there is no effect on the products or reactants energy. The reactions ΔH is

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SOP of Nitrogen Purging of the Agilent Carey 5000 UV-Vis NIR Spectrophotometer Chemistry Research Paper

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ns are meant to ensure: health of the operators is not put at any risk and that they have adequate knowledge to undertake the process; procedures go on in a systematic manner without failures. (Mannan, 2005) The scope of this Sop covers the Nitrogen purging of the Agilent Cary

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Synthesis of Aspirin Chemistry Research Paper

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The reflux condenser was removed after 3 minutes to allow all the produced acetic acid to evaporate. The reaction mixture was cooled in an ice bath, and water was adder to assist crystal formation. The obtained

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Interactions of hazardous materials Chemistry Essay

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To begin with, I will seek to identify the Blue Dangerous When Wet Placard with class 4 label code and UN 1836. From my knowledge and experience, the chemical may either be fulvic acid or humic acid. Secondly, I will ensure that I

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Harnessing Solar Energy to Reduce Dependence on Fossil Fuels Chemistry Term Paper

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We cannot imagine life on earth without the light, warmth, and energy given out by the sun. Millions of years ago, when the solar system was in the process of evolution, numerous physical and chemical changes were taking place on the earth, both on the crust and inside the core of the earth. Various life forms evolved and perished in the process.

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Energy-Producing Companies Chemistry Lab Report

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The cheapest means of cutting carbon emissions is by use of renewable resources, which is indicated by green in our energy wedge. The green color resembles the environment such as forests. Increasing forest cover and vegetable is likely to reduce carbon in the atmosphere since the trees utilize the carbon for the process of photosynthesis.

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The Analysis of Electrophoresis Chemistry Coursework

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For molecules to be separated by electrophoresis, they must possess a net positive or negative charge in their natural condition or be able to accept a charge (Holme and Peck 1998, p.132). Therefore, all samples must be in a solution. There are four main factors that determine the mobility of substances during electrophoresis.

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Chemical Changeand Combustion Process Chemistry Essay

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For liquids to burn, an atom or corresponding molecule of the prevailing ought to have kinetic energy and approach oxygen molecule (Horsfall, 2002). In case the underlying approaches are sufficient then it forms a bond thereby releasing energy. Conversely, in a solid the molecules are normally joined together and hence not mobile.

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Fine Chemical Production Chemistry Essay

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The chemical compound is less dense than water, insoluble in water but soluble in diethyl ether, ethanol, and mineral oil. In addition, as an aldehyde, citral is normally involved in polymerization and self-condensation reactions. Chemically, citral consists of a mixture of a pair of aldehydes (terpenoids) having similar molecular formula but different structures.

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The Increasing Emission of Carbon Dioxide Chemistry Lab Report

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The shift towards a low-carbon economy is believed to be strongly associated with the creation of a broad range of new employment opportunities. However, before we expect the opportunities to occur it is important to plan and execute a mission that is likely to reduce carbon emissions by half in the next 50 years.

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Reasons for Choosing NH4NO3 Chemistry Essay

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I needed to know whether since its discovery in 1659 industrialists use it in bulky form or disintegrate it into smaller components using other reagents to get what is useful for diverse purposes in the industry. Since its discovery, NH4NO3 was majorly used for making fertilizers but during WWI Germans started using it in manufacturing explosives.

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Quantification of reducing sugar in wine Chemistry Lab Report

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A deionized water blank is run and the results of the sample titration and blank are compared. 5. The winemaker might want to know the amount of sugar remaining in wine as it nears the fermentation process

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Hydrogels Polymers Chemistry Essay

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They swell in water and can absorb a large volume of water; this can only be compared to a couple of times the volume of dried gel. However, chefs among them are temperature, pH, ionic strength, solvent composition, and light and electric field, Al these are stimuli-responsive Hydrogels that are useful in the development of a number of appliances.

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Beer-Lambert Law Chemistry Lab Report

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This lab report covers on quantitative analysis of copper in a penny. Conventional quantitative procedures include preparation of reference and sample solutions. A UV-Visible spectrometer will

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Understanding the Biochemistry of BSE Chemistry Essay

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These forces occur between side chains of individual amino acids to facilitate a stable structure. Hydrophobic Interactions: These are weak interactions that occur when hydrophobic side chains of amino

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Mineral Spirits Poisoning in New York Times Chemistry Essay

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Generally, the debate on mineral spirits and their increasing danger to society is widely discussed in the article Mineral Spirits Poisoning in New York Times dated Thursday, February 26, 2015. The widespread use of the mineral spirit especially in painting poses significant health risks to the people.

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The Factors That Affect the Intensity of Color Chemistry Lab Report

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In summary the factors that affect the intensity of color is the concentration of the color and the light that is shined through the color. By using a spectrophotometer or a colorimeter it is possible to find the intensity of light. With a higher intensity of color light does not escape as easy as with a lighter intensity.

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Smoldering Combustion by TJ Ohlemiller Chemistry Essay

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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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Prpperties of an element Chemistry Essay

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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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Drug Zafirlukast/bioavailability Chemistry Essay

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Drug absorption depends on degradation, diffusion, transport and permeability factors of the drug which in turn influence its

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