Chemistry Essay Examples and Topics. Page 3

394 samples

UPLC With Fluorescence and Photodiode Array Detection

The poster is presenting a sophisticated chromatographic based method that ensures a specific and sensitive detection of compounds or substances like -blockers through the use of ACQUITY UPLC FLR detector that ensures optimization of excitation [...]
  • Pages: 2
  • Words: 700

Preparation and Properties of an Aqueous Ferrofluid

A ferrofluid is a liquid that contains very small pieces of a magnetic substance and hence acquires its magnetic properties when placed in a magnetic field. A ferrofluid primarily consists of small particles which are [...]
  • Pages: 5
  • Words: 1385

Energy Intake and Expenditure Analysis

Determination of relationship between energy intake and energy expenditure is therefore important aspect towards determination of maximal energy expenditure, optimization of fat expenditure as secondary source of energy after carbohydrates and capacity to achieve energy [...]
  • Pages: 4
  • Words: 1366

Uranium Mining and Issues Tied to It

Because the effects of radiation can be far reaching on the health of the workers and the people living in close proximity to areas where uranium is mined authorities should ensure that they provide information [...]
  • Pages: 6
  • Words: 1863

Flash Chromatography Overview and Analysis

Pour the elution solvent to the silica gel then, using a gas pump, force the solvent through the silica. Without disturbing silica's top surface, the dissolved sample in the elution solvent is then gently applied [...]
  • Pages: 2
  • Words: 607

Indirect Definition of the Unit of a Penny Weight

The beaker containing all the available pennies and, also the beaker plus half the number of pennies were to be separately weighed and recorded initially before the commencement of the experiment.
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Enzymology and Catalytic Mechanism

The main substrate of the enzyme Fructose B or Fructose-1-P Aldolase is Fructose-1-Phosphate. Following graphs depict the effect of enzyme Aldolase B on the amount of Ea required for breakdown of fructose to Glyceraldehyde and [...]
  • Pages: 4
  • Words: 1599

Nanoparticle Titanium Dioxide (Tio2) Effect on Health

On the other hand, the small size of titanium dioxide nanoparticles is also a risk factor because they can easily penetrate the cells, resulting in cell photocatalysis and damage to DNA upon exposure to the [...]
  • Pages: 3
  • Words: 933

Toxicology: Is Water a Toxic Substance?

It is well known that the solubility of ethanol in water is unlimited. Toxicity could be a characteristic of the formation of the reactive oxygen species which can also be present in water.
  • Pages: 2
  • Words: 550

Seawater vs. Brackish Water Reverse Osmosis

The concentrations of seawater and brackish water differ considerably; hence, there is a distinction involving the concentrate acquired from seawater desalination plants and brackish water desalination plants.
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  • Words: 539

Desalination: Biofouling of Seawater Reverse Osmosis

Membrane fouling occurs as a result of the accretion of substances on/in/or near the membrane. More so, during desalination, the process is carried out in a way similar to the treatment of drinking water.
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  • Words: 821

Breath With the Strength of Cabbage

The extract, which is the blue solution obtained from cabbage, was poured into another beaker and the pieces of the boiled cabbage were discarded.
  • Pages: 6
  • Words: 1308

Pesticides’ Effects on Rivers and Streams

Once the pesticides are in the water, they affect aquatic life and the entire organisms in the food chain. Water is a basic need for all living organisms, and the harmful effects of pesticides in [...]
  • Pages: 9
  • Words: 2528

Elucidating Different Identities of Cations

The solution that was being investigated in the experiment contained a mixture of positively charged ions that could only be known through the adoption the right separation approaches.
  • Pages: 2
  • Words: 558

Cracking Naphtha to Produce Olefins

The purpose of the study was to establish the amount of olefin, gasoline and other crude oils that were to be produced in the exercise. To study the properties and applications of olefin and naphtha.
  • Pages: 15
  • Words: 4124

Vitamin B6: Biochemical Overview

In order to maintain the proper percentage of Vitamin B6 in the patient's body, it is imperative that the dietary allowances of the vitamin should be in direct proportion to the patient's age; more to [...]
  • Pages: 3
  • Words: 861

Overview of Polyether Ether Ketone

The exceptional properties of polymers are determined by the extent and the organization of the molecular chain. According to Kurtz, the melting temperature is an indicator of the thickness and flawlessness of crystals.
  • Pages: 6
  • Words: 1681

Progress and Recent Trends in Biofuels

The issue of biofuels has been raising heated debates in the wake of the challenge of global warming, the ever-increasing energy consumption, and the rapid reduction of fossil fuels across the world.
  • Pages: 2
  • Words: 560

The Physical and Chemical Properties of Water

Considering the structure in the figure above, it is evident that a molecule of water has a line of symmetry that can be traced through the water molecule, acting as a bisector of the angle [...]
  • Pages: 2
  • Words: 572

Plasma Discharge and its Examples

Here, Chang, Lawless and Yamamoto argue that plasma is the fourth state of matter, which occupies 99% of the universe and consists of particles known as ions, neutrons, and neutrals, which exist in a gaseous [...]
  • Pages: 10
  • Words: 2752

Researching of the Nafion Resin

Prior to this process, a preliminary process was done where the NR/S-X samples were subjected to a 24-hour drying process inside an oven and at a temperature of 95oC.
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  • Words: 1116

Studying the Conductive Polymers

In order to understand the process involved in the synthesis of SY PPV, a schematic presentation of the steps involved and their intermediate products are shown below.
  • Pages: 3
  • Words: 902

Hydrogen – The Lonely One

My name is Hydrogen, and my name is usually denoted by the letter 'H.' I am the first born in a family of seven and our family name is Group 1. Due to my weight [...]
  • Pages: 3
  • Words: 892

Factors That Affect Enzyme Kinetics

The key role of enzymes is to improve the rates of biological reactions so that they, are well-suited to the requirements of the organism.
  • Pages: 6
  • Words: 1502

Corrosion Inhibition in Oil and Gas Pipelines

Internal factors lead to corrosion of the inner surfaces of pipelines, whereas external factors cause the destruction of the outer surfaces of pipelines in what is known as external corrosion.
  • Pages: 4
  • Words: 1190

Chemical Transection Analysis

It has been demonstrated that most neurotoxins affect the cell bodies of neurons in both the PNS and the CNS. The delayed neuropathy has been attributed to demyelination of axons and phosphorylation of esterase in [...]
  • Pages: 2
  • Words: 550

Organic and Inorganic Compounds

Dry Ice if put in water, starts melting, and soon it becomes gaseous, as the temperature of CO2 increases. If it is placed in a bottle, the gas pressure tears the walls of the bottle.
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An Effective Hazard Management

Given the transportation of the substance in molten form, there is the likelihood of violent reaction with other substances like water and hence result in explosions in addition to producing gases that are flammable.
  • Pages: 11
  • Words: 2968

Fuel Cell and Remote Pumping Station System Problem

This paper describes the increased use of hydrogen as a source of renewable energy, the working of a fuel cell, how the system interacts with its internal components and the environment and the working of [...]
  • Pages: 6
  • Words: 1862

Crossover Complexes of Iron Coordination Compounds

The mean linear distance of the nitrogen-iron bond at a temperature of two hundred and ninety-four Kelvin is 2.17. Another area of importance in regard to low and high spin states is the effect of [...]
  • Pages: 6
  • Words: 1681

Process of Converting Bauxite Into Aluminium

Therefore, with the help of a refining process, Alumina is extracted from bauxite which in turn is converted into Aluminium metal with the help of smelting process. The process of refining the metallic ore in [...]
  • Pages: 4
  • Words: 965

The Chemistry of Morphine

The method involves the extraction of the alkaloids from their combination with the Meconic acid in the opium poppy. And for continuous parenteral administration of morphine, the preferred route is subQ infusion.
  • Pages: 7
  • Words: 2010

Chemistry of Morphine

He performed several experiments as a novice of pharmacist during his spare time and in the end was able to detach the active substance, organic alkaloid, from the gum produced by the opium poppy. This [...]
  • Pages: 7
  • Words: 1980

Hazards that Remain after Industrial Sites Are Closed

It would be important in this report to analyze the chemical reaction nature of the wastes involved and expected effects to the environment keeping in mind the stream aquatic life and the human livelihood downstream.
  • Pages: 5
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Shape Memory Alloys (SMAs)

The first mentioning of shape memory materials was with the discovery of martensite in 1890, which was the first step for phenomenal discovery of the shape memory effect.
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  • Words: 1094

Application of Catalyst and Energy Production

This work entails developing a catalyst coupled with the construction of a good reformer in the field of catalysis. The catalyst is released at the end of the reaction and may be used again.
  • Pages: 35
  • Words: 8961

Fuel Cell as an Alternative Energy Source

For the fuel cell to operate continuously the reactants must flow into the cell, and the products out of the cell and the electrolyte must remain within the cell.
  • Pages: 4
  • Words: 1091

Heterogeneous Catalytic Hydrogenation

This article gives a description of the value of different methods of asymmetric hydrogenation and summary of results achieved during the experiments and further perspectives in this sphere of study.
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  • Words: 907

Inorganic Chemistry: Silver

It also exists in minute amounts in traces in ores of gold, copper, and lead."As a mineral, silver crystallizes in the cubic system.
  • Pages: 3
  • Words: 832

The Impact of Plastic and Contain It Bisphenol A

Bisphenol A is commonly found in majority of plastic water bottles, baby feeding bottles, in food can linings, in addition to teeth protection sealants used by dentists. This lead to the conclusion that some chemicals [...]
  • Pages: 2
  • Words: 337

The Science About the Experiments: Colloidal Systems

This Debye length depends on the concentration of the colloidal system and charge on the colloidal particles. This works on the principle of scattering of light by the particles in the colloidal system.
  • Pages: 5
  • Words: 1505

Landscaping Membranes for Oil-Water Separation

For instance, one of the most important wastes of the oil treatment procedure is produced water, which in recent years has been the subject of increased attention by researchers in the field of colloid chemistry, [...]
  • Pages: 8
  • Words: 2460

Testing the Safety of Water in Canada

However, the presence of the water forming atoms, hydrogen and oxygen does not determine the quality of water. The quality of water is also determined by the amount of chemicals dissolved in it, some of [...]
  • Pages: 2
  • Words: 584

Iron: Properties, Occurrence, and Uses

The price of the steel, which includes iron in its composition, differs from the steel grade. The main stage is heating of the iron ore in the blast furnace, removing the oxygen from the oxide.
  • Pages: 3
  • Words: 910

Hazardous Chemical Containment Case Study

Only few experts from the team should be allowed to get to the store and find the label of the punctured drum. The scene will be cordoned off from the reach of individuals who will [...]
  • Pages: 2
  • Words: 738

The Chemistry Behind Mineral Make-Up

According to the US Food and Drug Administration, cosmetics include all compounds or products that are applied to the body with the aim of beautifying, boosting attractiveness or improving the physical appearance without generally altering [...]
  • Pages: 5
  • Words: 1398

Element of the Periodic Table – Antimony

Antimony is mostly found with other elements and "Antimony was recognized in compounds by the ancients and was known as a metal at the beginning of the 17th century and possibly much earlier" Antimony is [...]
  • Pages: 5
  • Words: 1356

Oxidation and Reduction Process

The amount of oxygen present in the atmosphere and the nature of the material it comes in contact with determine the process of oxidation.
  • Pages: 8
  • Words: 1486

Activation Energy Barrier Definition

Any chemical reaction has a transitional state, which is characterized by a high level of available energy and can be described as a state of interacting molecules that corresponds to the peak of the activation [...]
  • Pages: 2
  • Words: 629

Nuclear Magnetic Resonance Spectroscopy

Although the use of proton NMR has been applied for the determination of trace components such as the residual hydrogen in D2 O, the mixtures of dinitrotoluene, and the mixtures of drugs, its great merits [...]
  • Pages: 5
  • Words: 3653

The Scope of Use of Chromatography

In conclusion, the scope of use of chromatography is wide and through chromatography the study of chemistry has been made a much more rich experience.
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  • Words: 708

Biogeochemical Cycle: Nitrogen

The nitrogen cycle is a biogeochemical cycle that describes how nitrogen is converted to compounds and circulates through the air, water, and soil.
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  • Words: 395

Chemistry: Environmental Pollution in Hungary

The acidification of water bodies leads to the death of numerous species that are susceptible to the presence of acid. Part of the problem is caused by the fact that Hungary is currently forced to [...]
  • Pages: 3
  • Words: 933

Polymer and Fiber-Reinforced Concrete

The objective of this report is to evaluate the properties, limitations, and prospects of future applications of fiber-reinforced concretes and polymer reinforced concretes.
  • Pages: 40
  • Words: 11030

Periodic Table Characteristics

The table is best illustrated by vertical and horizontal lines of elements with the latter called groups while the former are called elements.
  • Pages: 3
  • Words: 864

“Miracle Fruit Secret Revealed” by Ehrenberg

Also, the sweet-sensing machinery of the tongue is said to work effectively in acidic flavors such as carbonated drinks and citrus. This is a massive discovery, especially because it emphasizes the ability of the protein [...]
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Waxes and Greases Production and Specifications

In plants, the waxes are found on the cuticles, fruits, and leaves among other parts of the plants. In this light, bees and spermaceti produced the animal wax that was the main source of wax [...]
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  • Pages: 14
  • Words: 3837

Aqueous HCl Solution Preparation

To prepare 500 grams of a 5% aqueous HCl solution, the chemist must have some basic information about the solute and the solution.
  • Pages: 2
  • Words: 668

Green Chemistry for Consumer Products

Green chemistry can be described as the abolition of the use or production of harmful substances in the creation, making, and use of chemical commodities.
  • Pages: 8
  • Words: 2195

OleT Enzyme Engineering to Improve Biofuel Yield

The geometry of the reactant complex was optimized and scanned to find the lowest energy pathway to bond hydrogen and oxygen atoms of abstraction of the closest hydrogen from the alpha and beta carbons in [...]
  • Pages: 16
  • Words: 15034

Long Lived Radionuclides in UAE Urban Soil

The amount of radionuclides depends on the concentration in soil, leachability of radionuclide and the solubility, and the sorption capacity of soil particles [2].
  • Pages: 17
  • Words: 4670

X-Ray Fluorescence Experiment with Salt

The salt sample was then put in a plunger to be compressed followed by measuring the height of the compacted sample, which was 7 cm. Other chemical elements that were found in the salt specimen [...]
  • Pages: 3
  • Words: 878

Isotope Ratio Mass Spectroscopy of Cheese

The purpose of this study was to use isotope ratio mass spectroscopy to determine isotopic disparities of 15nitrogen, 13carbon and 2hydrogen in six cheese samples and distinguish them based on geographic, geological and agricultural practices. [...]
  • Pages: 5
  • Words: 1495

Spectroscopy as the Detecting Oil Fraud Tool

Because of the efficacy with which spectroscopy allows determining the status of oil and the analysis of its compounds, the specified tool should be recognized as superior in detecting the cases of oil fraud.
  • Pages: 1
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Long Residue Processing in Oil Refineries

However, it is important to note that the amount of products produced from the atmospheric distillation process is not always proportional to the demand of the products rather it depends on the amount of crude [...]
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  • Words: 1096

Alcoholic Fermentation and Metabolic Traits

Furthermore, researchers intended to investigate the impact of human selection on strains' food processing in addition to studying both the genetic variability and plasticity of different fermentation products between strains and food processes.
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  • Words: 594

Hydrogen Bonds: Chemical Properties

It is possible to have these properties due to the presence of hydrogen bonds within the molecules of liquid water. It is the presence of a significant number of hydrogen bonds that allow for the [...]
  • Pages: 6
  • Words: 1642