StudentShare
Our website is a unique platform where students can share their papers in a matter of giving an example of the work to be done. If you find papers matching your topic, you may use them only as an example of work. This is 100% legal. You may not submit downloaded papers as your own, that is cheating. Also you should remember, that this work was alredy submitted once by a student who originally wrote it.
Contact Us
Sign In / Sign Up for FREE
Sign Up for FREE Sign In
Search
✕
Go to advanced search...
✕
Home
Free Samples
Premium Essays
Editing Services
Editing Proofreading Rewriting
Extra Tools
Essay Topic Generator Thesis Generator Citation Generator GPA Calculator Study Guides Donate Paper
Essay Writing Help
About Us
About Us Testimonials FAQ

Chemistry Essays

Result for Subject Chemistry:
1168 essays
Valuable Learning through Mobile and the Use of Computer in Teaching Chemistry Essay
5 pages (1515 words) , Download 1 , Essay
Free
There are different tools available that can support teaching and learning in chemistry. The tools include smartphones, computers, tablets, mobile phones and others. Smartphones and tablets help in the participation of members in class discussion boards, which enable the exchange of ideas in chemistry wikis and journals.
Preview sample
Metals in Medicine & Biology Chemistry Coursework
10 pages (2742 words) , Download 0 , Coursework
Free
There is no contamination to the final product by Magnus' salt during the conversion reaction, explain how step3 of this reaction proceeds and what drives it to completion. There is the formation of insoluble silver halogenides and aquaderivative (with aqualigand) after adding excess (10%) of silver nitrate AgNO3 then heated. 
Preview sample
sponsored ads
Hire a pro to write
a paper under your requirements!
Win a special DISCOUNT!
Put in your e-mail and click the button with your lucky finger
Your email
YOUR PRIZE:
—
Apply my DISCOUNT
Composition Corrosion Cells Chemistry Research Paper
13 pages (3450 words) , Download 0 , Research Paper
Free
PH refers potential of Hydrogen, i.e. the negative logarithm of the hydrogen ions concentration. In the acidic range, oxygen reacts with the atomic hydrogen thus depolarizing the metal surface, and subsequently, the reduction reaction progresses. At a PH level of 4, ferrous oxide dissolves as it is progressively formed rather than being deposited as a film on the surface.
Preview sample
Fluid Dynamics of Fires Chemistry Term Paper
7 pages (2008 words) , Download 0 , Term Paper
Free
In fact, an airplane flying at supersonic speeds produces a double boom because two shock waves are formed, one from the nose of the plane and one from the tail. People near the path of a space shuttle as it glides towards its landing point often report hearing what sounds like two very closely spaced cracks of thunder. 
Preview sample
Impact of Polymers on Society Chemistry Essay
10 pages (2701 words) , Download 0 , Essay
Free
The innovative process has been witnessed in many parts of the world and more especially in the developed world. Research has shown that the production of polymers-related products has increased across the world and this has been attributed to the multiplication of the applications of polymers in society. The demand for plastic has continued to increase the world over.
Preview sample
An Introduction to Combustion Chemistry Assignment
9 pages (2365 words) , Download 0 , Assignment
Free
. The molecules move at a faster speed than solid molecules and are less tightly packed. Gases have random and move in the vessel at a very high speed compared to liquids and solids. Molecules are independent of each other with no bonds between them. One state can change to another by the effect of heat (Cracolice 2011).
Preview sample
Determination of Elements by ICP-AES and ICP-MS Chemistry Assignment
4 pages (1245 words) , Download 0 , Assignment
Free
The effect of the working conditions of the dynamic reaction cell was investigated to obtain the most suitable S/N ratio. The interference potential of the elements normally at masses m/z 64, 56, and 40, plus their intensities were lowered through the application of a CHA4, acting as a catalyst in the reaction cell gas in the experiment.
Preview sample
Glycolysis and Fermentation of Grape Juice Chemistry Assignment
4 pages (1280 words) , Download 0 , Assignment
Free
Further, to establish the amount of glucose present in grapes in order to harvest it for glycolysis and fermentation so as to process the wine. This is achieved by estimating the levels as well as the content of sugar in the grape juice. The agenda behind all this is to establish the generation of energy by foods in form of ATP that drives all the processes.
Preview sample
Hexavalent Chromium Chemistry Report
5 pages (1532 words) , Download 0 , Report
Free
Most dyes, paints, and inks have this chromate in them, which forms the color pigment. In the manufacture of plastics, this compound is also used to give color variations in different plastics. Not only is Hexavalent Chromium used for coloring purposes, but it is also a preservative in paints. The compound ensures that stains and other coatings last for long on the surfaces they are applied to, especially metal surfaces.
Preview sample
Quantitative Determination of Paracetamol in Tablets Chemistry Assignment
6 pages (1684 words) , Download 1 , Assignment
Free
Five 100 ml volumetric flasks were labelled and into each one of them was pipetted 0.4 ml, 0.6mL, 0.8mL, 1.0mL & 1.2mL respectively of stock standard solution. Each of these was made up to the mark using 0.1M NaOH. The resulting solutions were 4µg/mL, 6µg/mL, 8µg/mL, 10µg/mL and 12µg/mL paracetamol working standard solutions.
Preview sample
Using Nature to Preserve Omega Oils Chemistry Assignment
8 pages (2362 words) , Download 0 , Assignment
Free
Antioxidants act as the catalysts that enable the conversion of omega 6 oils to omega 3 oils which are vital in the prevention of degenerative diseases. Omega Oils such as Krill Oil and Olive oils contain antioxidants. Some antioxidants are produced by the body while others are obtained from nutrients. Examples of those produced by the body are; lipoic acid and Co-enzyme Q-10.
Preview sample
Causes, Consequences and Prevention of Industrial Accidents Chemistry Term Paper
7 pages (1942 words) , Download 0 , Term Paper
Free
An alternative approach is based on the main values that entail public participation, environmental justice, and pollution prevention. Environmental goals ought to include other community and social needs such as access to health care, jobs, and safe and quality schools, without which the community’s right to a safe future can be compromised
Preview sample
Introduction to Combustion Questions Chemistry Assignment
8 pages (2294 words) , Download 0 , Assignment
Free
This is the state in which intermolecular forces of attraction are responsible for keeping close together but not fixed together as in solids. This means that the molecules in liquids are freer to move around as compared to solids. In gases, intermolecular forces of attraction in gases are considered the least since molecules are free to move away from each other as compared to both liquids and solids.
Preview sample
Introduction to Combustion and Fire Chemistry Assignment
7 pages (1877 words) , Download 0 , Assignment
Free
So in any combustion of fuel there must be correct balance of time and mixing of fuel so that a proper combustion of fuel must take place and this will also minimize flame impingement and will provide highest combustion efficiency and return it will reduce emission of harmful gases into the environment.
Preview sample
A Method of Mapping the Molecular Structures Chemistry Assignment
12 pages (3708 words) , Download 0 , Assignment
Free
The proton quantity of every type present in a pure sample’s spectrum may be directly acquired from every multiplet’s integral. This basically takes place when there is proper separation of the multiplets, with no overlapping of the solvent or remaining water signals. The molecule should not also be going through a gradual conformational exchange.
Preview sample
Enclosure Fire Dynamics Chemistry Assignment
12 pages (3377 words) , Download 0 , Assignment
Free
The thermal explosion in a vessel with cold walls first involves the following, reduction in the temperature of the gaseous mixture in the vessel due to thermal conduction to the cold walls of the vessel. This happens so that we obtain a temperature that is the same for both the vessel walls and the gaseous mixture.
Preview sample
Enclosure Fire Dynamics Chemistry Assignment
10 pages (2711 words) , Download 0 , Assignment
Free
Heat is the energy contained in a substance and measures the motion of the molecules that makes up that substance. In cold walls, the molecules move very lower though it still heats. Cold walls normally have low heat content and the temperature is slower. For the cold walls of a vessel to gain heat, heat moves from a warm object.
Preview sample
The Thermal Explosion of Chemicals Chemistry Assignment
10 pages (2710 words) , Download 0 , Assignment
Free
The explosion is a combustion ignition that goes with a deafening noise. After a period of ignition, the burning is in front of a flame that swells out from the point of ignition. The gas-dynamic processes start during the period of induction of an elevated energy supercritical thermal explosion in a gas that is reactive and contained between two plates that are infinitely parallel.
Preview sample
The Effect of Heat Transfer on Thermal Heat Balance in a Vessel with Cold Walls Chemistry Assignment
9 pages (2445 words) , Download 0 , Assignment
Free
The thermal explosion is a rapid increase in the volume and release of energy and heat in an extreme manner usually associated with the generation of high temperature. Gases are also released during the explosion into the surroundings with adverse effects on the system and on the rate of the reaction.
Preview sample
Thermal Explosion, Deflagration, and Detonation Chemistry Assignment
11 pages (3083 words) , Download 0 , Assignment
Free
At the stoichiometric proportion, the energy to ignite the mixture will be the lowest. The minimum ignition temperature is lowest at the stoichiometric concentration. Fire is a self-sustaining reaction. Once the chemical reaction begins, it can provide enough energy to continue the reaction between the fuel and oxidizer.
Preview sample
Critical Conditions of Thermal Explosion, and Pre-Explosion Heating Chemistry Assignment
7 pages (1803 words) , Download 0 , Assignment
Free
In detonations, there is usually a lot of pressure when compared to that in deflagrations. Detonations are highly associated with dust suspensions, gases, and even droplet fogs. In this case, the gases consist of mixtures that are below the limits of flammability. That is a mixture of oxidants of composition and fuel. 
Preview sample
Analysis of Thermal Explosion in a Vessel with Cold Walls Chemistry Assignment
10 pages (2762 words) , Download 0 , Assignment
Free
Basically, thermal explosion means the “sudden inflammation of a uniformly heated mass” of substance (Zukas Walters and Walters 176). It is further defined as the rapid heat release that is associated with self-acceleration and often manifested through its destructive outcomes (Griffiths and Barnard 3; Glassman and Yetter 261).
Preview sample
Hindered Amine Light Stabilisers Chemistry Assignment
7 pages (2490 words) , Download 0 , Assignment
Free
The wide range of later developed HALS with more specific durable light stabilising ability in polymers and surface materials has led to specific HALS products being used for different applications. The first-generation HALS still remains the most suitable answer for the light stabilisation of thick section polyethylene.
Preview sample
A Critical Role of Radiation in Combustion Reactions Chemistry Assignment
6 pages (1636 words) , Download 0 , Assignment
Free
Thermal radiation, like other electromagnetic radiation, does not require a medium to propagate. It can easily pass through a vacuum. It travels by means of electromagnetic waveforms, and can also be characterized by its wavelength, energy, and frequency. It is also important to note that radiation energy from the source is emitted outwards in straight lines and travels in all directions.
Preview sample
Fire Dynamics for Firefighters Chemistry Assignment
6 pages (1611 words) , Download 0 , Assignment
Free
Extracting smoke from the fire compartment as a part of operational fire fighting would be most beneficial, but it always poses some risks when initiated during the fire. In some cases, the smoke ventilation is advantageous: the hot gases are removed from the fire enclosure, the visibility improves and the enclosure cools down. 
Preview sample
Production of Chlorine Chemistry Case Study
17 pages (5195 words) , Download 1 , Case Study
Free
Rock salt occurs in an extensive stretch of sedimentary evaporite rocks that are the result of drying enclosed lakes, seas and playas. It forms when saline water evaporates in basins that are somewhat enclosed. This mineral is very prevalent worldwide, and occurs in underground deposits - more so in non-arid areas - and as a solution in seas or oceans as well as in several inland lakes of the arid areas.
Preview sample
Impact of the Nominated Constrains on the Process of Producing Skim Milk Chemistry Term Paper
6 pages (1770 words) , Download 0 , Term Paper
Free
The author of the paper states that the limiting requirements of the process involve a number of risks and challenges that form the constraints for the process. These constraints are analyzed to determine their impact on the process of producing skim milk under two broad headings: Internal constraints External constraints
Preview sample
Factory Site Visit of Unilever Chemistry Assignment
7 pages (2037 words) , Download 0 , Assignment
Free
The capacity of this vessel is the same as the main mixing tank and these tanks are generally more in number. The bottom valve in this cylinder is provided with din fittings to enable pipeline connection. When the production of one batch of shampoo is complete, the vessels are cleaned with hot water at a temperature of 800 C.
Preview sample
Crystal Structure of the Retinoblastoma Protein N Domain Provides Insight into Tumor Chemistry Assignment
11 pages (3443 words) , Download 0 , Assignment
Free
The pRb undergoes degradation through the proteasome-dependent pathways and any inactivation of the pRb results in the development of human malignancies. Understanding the Retinoblastoma protein structural and functional analysis has given an imminent knowledge in Rb N mutation oncogenicity and further categorizes protein distinctive phosphorylation regulated site.
Preview sample
Experiment on Quantitative Analysis of Plastic Polymers Using Cone Calorimetry Chemistry Coursework
5 pages (1563 words) , Download 0 , Coursework
Free
This is a scenario that has drawn great interest to meet environmental regulations in non-flame retarded polymers. This experimental report has the objective of explaining why quantitative analysis using cone calorimeter remains elusive and to understand how materials fail or pass specific Heat release ratings.
Preview sample
Application in Forensic Odontology Chemistry Essay
12 pages (3251 words) , Download 0 , Essay
Free
Several procedures must be accomplished by a forensic odontologist to carry out a dental examination of the remains of an unknown person during post mortem examination. Results will be compared to the antemortem dental data of the individual under investigation. Photography, radiography, jaw resection, and dental impressions are necessary procedures.
Preview sample
Transition Metals Chemistry Essay
8 pages (1863 words) , Download 0 , Essay
Free
A forensic odontologist is an appropriate person that carries out the role of forensic odontology in a criminal investigation. Table 1 shows the specific roles of a forensic odontologist in crime investigation as outlined by the British Association of Forensic Odontology which is carried out usually in close coordination with the forensic pathologists and forensic anthropologists.
Preview sample
Small Flame Experiment Chemistry Article
5 pages (1376 words) , Download 0 , Article
Free
A fire burning in an open space will entrain air from all sides which creates an imbalance in the airflow. The imbalance restricts air entrainment and the pyrolyzing produces travel high up in the plume before complete combustion and heat release. This phenomenon is called as trench effect and is known to occur on fires adjacent to inclined surfaces.
Preview sample
Use of Polymers and Its Classification Chemistry Coursework
9 pages (2513 words) , Download 0 , Coursework
Free
In the year 1827, a scientist by the name of Jons Jakob Berzelius coined the word polymer which he derived from the Greek words polys meaning many, and meros meaning parts. Humans have taken advantage of polymers for centuries in the form of oils, tars, resins, and gums. It was not until the industrial revolution that the modern polymer industry started to develop.
Preview sample
Energy Transfer and Thermodynamics Chemistry Math Problem
10 pages (2650 words) , Download 0 , Math Problem
Free
The law implies that the thermal equilibrium in the Thermodynamic systems is an equivalence relation between the systems as studied under these systems. The mathematical equation for the law is represented with the use of symbols T=Temperatue, and A, B, and C are the three systems, and the equivalence relation among all these systems is given below.
Preview sample
Health and Safety in the Manufacture of Propylene Chemistry Term Paper
6 pages (1644 words) , Download 0 , Term Paper
Free
The storing of propylene is also a factor in reducing the risks associated with propylene. Propylene has to be stored away from any oxidizing agent to prevent the possibility of violent reactions. The storage containers of propylene should be closed tightly and the storage area should be cool and well ventilated.
Preview sample
Uses and Application of Stearic Acid Chemistry Essay
6 pages (1840 words) , Download 0 , Essay
Free
Global tracing of stearic acid and its derivatives are subjected to the terms of a particular country’s tariff regulations. In the year 2004, for example, the Indonesian government calls for a reduction in the tariff of its stearic acid product in its trading transactions with The Republic of China (World Trade News, 2004).
Preview sample
Chemistry - Alkenes and Aromatics Chemistry Coursework
3 pages (847 words) , Coursework
Nobody downloaded yet
Symmetrical stretch is infrared inactive, for a nonlinear molecule, the number of normal modes of vibration will be calculated according to the number of dipole moments and components. The number of modes = 3 normal modes, of these 2 will be symmetrical stretching vibrations. The rule of mutual exclusion indicates that each structure will produce its own spectrum at a time. 
Preview sample
The Production of Cast Iron Chemistry Essay
5 pages (1526 words) , Download 0 , Essay
Free
The paper "The Production of Cast Iron" is an excellent example of an essay on chemistry. Cast irons contain 2% to 4% carbon, 1% to 3% silicon, and in most cases, the remainder is iron, which means that they are iron-carbon-silicon alloys. The presence of the silicon in the alloy promotes the formation of graphite.
Preview sample
Carbon Capture and Storage Chemistry Literature review
6 pages (1827 words) , Download 1 , Literature review
Free
The paper “Carbon Capture and Storage” is a good example of the literature review on chemistry. In a generic sense, carbon capture and storage (CCS) or sometimes referred to as carbon capture and sequestration (CCS) can be perceived as the long-term isolation of anthropogenic sources of carbon dioxide (CO2) which are long-term in nature from the atmosphere.
Preview sample
Introduction to Physics and Chemistry of Combustion: Explosion, Flame, Detonation Chemistry Assignment
6 pages (1658 words) , Download 0 , Assignment
Free
The paper "Introduction to Physics and Chemistry of Combustion: Explosion, Flame, Detonation" is a wonderful example of an assignment on chemistry. A thermal explosion is the rapid or sudden inflammation of uniformly heated materials. In order for a thermal explosion to occur, two conditions must be met.
Preview sample
Safety, Health and Environmental Issues of Ethylene from Full-Range Naphtha Chemistry Essay
7 pages (1885 words) , Download 0 , Essay
Free
The paper 'Safety, Health and Environmental Issues of Ethylene from Full-Range Naphtha" is a good example of a chemistry essay. Ethylene is a chemical compound taking the formula C2H4. The compound is the number one produced organic compound worldwide. From the World Health Organization, the production of this product in 2005 exceeded 107 Million Metric Tonnes.
Preview sample
Thermoplastic Polyester Elastomer Chemistry Assignment
1 pages (250 words) , Download 0 , Assignment
Free
Sub-optimal developments occur when there is an excessive association between organic silicates and TPE-E segments (1, 3-6). The dual-modified organic silicates establish immediate functionality which is interested in the polymerization reaction to raise the degree of clay dispersion and to boost the thermal stability of the consequential polymer nanocomposites (8, 10).
Preview sample
Cocaine in Money Chemistry Lab Report
1 pages (250 words) , Download 0 , Lab Report
Free
This experiment is used to test the presence of cocaine in dollar bills. The experiment tests whether money has been contaminated with the drug. Logically this would be possible if one handled money and the drug, or the money came into direct contact with the drug in a way, or another. However, there are so many other possibilities and legalities that make the assumption complicated.
Preview sample
Effects of Reducing Sugars, Starch, Lipids and Proteins Chemistry Lab Report
1 pages (464 words) , Download 2 , Lab Report
Free
The present paper has identified that when reducing sugars are mixed with Benedict's reagent, the color changes from clear blue to a red-orange, green or yellow, depending on the sugar.  The glucose solution turned dark orange or red, and the onion solution turned light yellow or orange meaning there must be glucose present. 
Preview sample
Differences between Fire & Combustion Chemistry Essay
1 pages (250 words) , Download 1 , Essay
Free
Fire and combustion are typically the same scientifically, but there exist some conventional differences between them. Combustion usually takes place before the emergence of fire. Conventionally, fire is not usually the intended outcome of a combustion process, while combustion is a controlled fire. Fire is an uncontrolled combustion process.
Preview sample
Flow Instability in an Alumina Precipitator Fitted With a Draft Tube Circulator Chemistry Case Study
4 pages (1000 words) , Download 1 , Case Study
Free
The draft tube slots are necessary for achieving a good pumping capability at the tank bottom. I can say in totality that CFD has played a big role in cutting down the operational cost. I can recommend more research to make sure maximum optimization of the process so that industries can maximize yields.
Preview sample
Toxicity of Compound in the Zebrafish Bioassay Chemistry Lab Report
1 pages (250 words) , Download 0 , Lab Report
Free
The paper "Toxicity of Compound in the Zebrafish Bioassay" is a good example of a lab report on chemistry. For our UPenn gastroenterologist collaborator to test the toxicity of compound 2 in the zebrafish bioassay, we provided Dr. Porter with the compound. At the end, a certain research grouped challenged that they were in a position to isoflavone using AlCl3in dioxane.
Preview sample
Radical Chlorination and Bromination Reactions Chemistry Research Paper
1 pages (250 words) , Download 0 , Research Paper
Free
The reaction involves the free halogen radical or either chlorine or bromine and when such replace hydrogen from an alkane, halogenoalkanes are formed and are sometimes referred to as alkyl halide or the haloalkanes. Alkanes are known to be saturated hydrogen; thus, they tend to be stable; hence, they are highly unreactive. This means that they will require energy to initiate these reactions.
Preview sample
Photo-Induced Cytotoxicity and Bio-Distribution of Prostate Cancer Cell-Targeted Porphyrin Chemistry Article
1 pages (250 words) , Download 0 , Article
Free
In photodynamic therapy, there has been extensive use of purified hematoporphyrin derivative and verteporfin, which are FDA-approved though they exhibit a side effect. Photosensitivity is notably undesirable. The study sought to research targeting the development of strategies, which allow tumor activity in the biological efficacy.
Preview sample
    151 - 200 results of 1168 items
    We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.
    ✕
    Contact Us