Chemistry Essay Examples and Topics. Page 2

394 samples

Porous Materials in Industrial Chemistry

To put it another way, despite the higher gas trapping capacity of COP-130, the retention rate of this substance in the organic framework was higher for COP-140, in which it was trichloromethane used as a [...]
  • Pages: 3
  • Words: 938

Lysine: Chemical Formula and Role in the Body

Lysine also plays a vital role in the immune system, as it helps the body fight off viruses and bacteria. It is also essential for hormone production, as it helps the body produce hormones such [...]
  • Pages: 1
  • Words: 287

The Chemical Reaction of Methane and Oxygen Gases

The chemical compositions of the reacting elements or compounds dictate the nature of the reaction. The chemical reaction entails the combustion of methane gas in the presence of oxygen gas, which are the reactants.
  • Pages: 1
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The Miller-Urey Experiment and Findings

The researchers note that their experiment was designed to mimic the primitive earth's atmosphere and not the ideal conditions required for the development of amino acids. At the experiment's conclusion, the solution in the flask [...]
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The Discussion of a Radioactive Isotope

A radioactive isotope is one that has an unstable nucleus, meaning that it can break apart and release a lot of energy. Fission releases energy by splitting the nucleus of a heavy element into two [...]
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Gerhard Ertl’s Chemist Profile Analysis

The importance of this research to modern society lies in the fact that chemical reactions on the surface of catalysts play a decisive role in many industries.
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  • Words: 553

Laser-Induced Breakdown Spectroscopy: Instrumental Facility

In fact, the LIBS device has a two-pulse characteristic: the first laser pulse ablates the detachment of matter from the substance and the accompanying heating, and the subsequent second pulse is aimed at additional excitation [...]
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  • Words: 620

Spectrophotometers: Invention and Development

Jensen explains that spectrophotometers can be used to make measurements where previous methods were unable to, like measuring the amount of light absorbed by a substance at different wavelengths.
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  • Words: 626

Extraction Process in Chemistry

From the point of view of the goals of the experiment, which consisted of the extraction of a substance from one phase of the solvent by another solvent, these two reactions do not make a [...]
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  • Words: 656

Titration of Acids: Standardizing Sodium Hydroxide

This procedure is also performed in this reaction, where a sodium hydroxide solution with the specified characteristics was used as the titrant and potassium hydrogen phthalate was used as the test solution; three tests in [...]
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  • Words: 500

What Causes Molecules to Absorb Light

The arrangement of the tubes in this order was compared with the corresponding arrangement in the peers in order to check the literacy of the color ranking and to identify the ligands without errors qualitatively.
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Infrared Spectroscopy in Aqueous Solutions

As is known, each band on such a spectrum corresponds to an individual covalent bonding vibration; therefore, the study of the spectrum allows one to determine the nature of the substance under study almost unmistakably.
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  • Words: 608

Natural Science: Tunable Emerald Laser

The emerald laser is a solid-state tunable laser that emulsifies fat in the tissue under the skin. The primary role of the emerald laser is in low-level laser therapy.
  • Pages: 2
  • Words: 597

Aspects of Pulp Quality Analysis

The research question to be answered is "What are the best predictors for the pulp quality?" The Kappa number indirectly characterizes the content of residual lignin in a fibrous semi-finished product.
  • Pages: 4
  • Words: 1182

Determination of Enzyme Denaturation

For the tyrosinase study, the control variable for the oxygen content of the reaction was used; it may vary, but it is generally the same.
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  • Words: 377

Dry Ice Usage Aspects Analysis

It is necessary to explore in more detail exactly in which cases dry ice is used, what are the alternatives and why this method is extremely dangerous when interacting with concrete.
  • Pages: 8
  • Words: 2319

Chemical Incompatibility During Storage

The same can be applied to acetone being a flammable liquid, it also should be separated from bases and oxidizers, but also acids like acetic acid in a separate cabinet or refrigerator.
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  • Words: 389

Isopropyl Alcohol in Cosmetics and Medicine

Isopropyl is synthesized in two steps: through the reaction of propylene with sulfuric acid and the consequent hydrolysis. In the context of isopropyl alternatives as sanitizers, ethyl alcohol serves as a solid option.
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  • Words: 528

Identifying Metals in the Sunken Treasure

While focusing on the first chemical reaction known as analysis reaction it could also be termed chemical decomposition and it is also one of the most popular chemical reaction types.
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  • Words: 545

Choosing Solvent for Decaffeinated Coffee Drink

One of the main arguments of the hypothetical company is the desire to make the final beverage environmentally friendly. Consequently, the choice of solvent must be based on the toxic properties of each of the [...]
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  • Words: 441

Alice Ball’s Contribution to Science

Therefore, Alice Ball was a chemist whose scientific life and contributions to science led to the use of isolated ethyl ester from Chaulmoogra oil in the treatment of Hansen's disease.
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  • Words: 555

The Blatter Radical and Its Synthesis

The Blatter radical, also known as the 1,3-diphenyl-1,4-dihydro-1,2,4-benzotriazin-4-yl radical, was discovered in 1968 and was named after the scientist who discovered it.
  • Pages: 4
  • Words: 1550

Analysis of Teratogens as Chemicals

Teratogens are chemicals that have the potential to cause functional or physical abnormalities in the developing human fetus or embryo if the pregnant mother is subjected to them. In this regard, cognitive impairments may affect [...]
  • Pages: 5
  • Words: 1435

Development of Pt-Based Catalysts for Oxygen Reduction

The past few years have seen major progress in the development of core-shell structures with the aim of improving oxygen reduction activity and stability of Pt-based catalysts. In line with the above, a major current [...]
  • Pages: 11
  • Words: 3054

Aspects of Chemistry of Oxygen

To sum up, oxygen enters the blood through the process of breathing atmospheric air and travels from the nasal cavity through the trachea and bronchi into the lungs, and then, enters capillaries and erythrocytes.
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Adsorption and Absorption Analysis

The Freundlich condition is an adsorption isotherm and an experimental connection between the amount of gas adsorbed into a strong surface and the gas pressure.
  • Pages: 7
  • Words: 1973

Structural and Functional Features of Zeolites

It is believed that the tremendous success in the field of the introduction of zeolites is connected with oil refining. The article will focus on zeolite ion exchange and the definition of sodium zeolite as [...]
  • Pages: 10
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Chemical Processes: The Diels-Alder Reaction

However, the basis has remained unchanged; namely, the addition of a dienophile to a diene by 2,4-conjugation allows the preparation of non-aromatic homocyclic with one multiple bonds in them.
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Analysis of Enzyme Kinetics Aspects

As for the effect of enzyme concentration, it is important to note that there is a direct proportion between the reaction's initial rate and enzyme concentration.
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  • Words: 1123

Spectrophotometry Used in Biochemical Settings

The work of a spectrophotometer is based on this law to calculate the amount of light, its absorption, and concentration. Spectrophotometry is necessary to demonstrate how non-destructive methods help check the condition of the water, [...]
  • Pages: 2
  • Words: 552

Diffusion Potential and Electrochemical Equilibrium

According to the law of concentration gradient, a chemical equilibrium will be established between the systems such that the solvent, water, from the less dilute solution will move to the more dilute one, while the [...]
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  • Words: 286

Perfluorinated Alkyl Acids Contamination

This paper examines the sources of PFAAs contamination in the environment, their effects on animal and human health, and the existing U.S.policies regarding PFAAs.
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Utilization of Methyl Ethyl Ketone

With the direct utilization of the chemical compound, ink is produced and the continuous inkjet printing technology with the implementation of suitable printing machines for marking production is realized.
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  • Words: 565

Why Do Generic Drugs Cost Less?

West, the former Deputy Director of the Office of Generic Drugs, the review process of brand name medicines and generics is identical from the first to the fifth stage.
  • Pages: 7
  • Words: 1958

Semi-Microscale Diels-Alder Reaction

In the present experiment, a semi-microscale study of the IR spectra of the recrystallized product and raw materials is carried out to confirm the reaction between anthracene and maleic anhydride.
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Polyphenolic Compounds, Quercetin and Iron

On the other hand, catechin is a weak acid, while rutin and cyanidin-3 are strong and weak bases, respectively. Lastly, epithelial cells are found within the gastrointestinal tract ad the cells are used to the [...]
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Glucose and Its Importance in Biology

Among them are galactose and fructose, with galactose being the optical isomer of glucose, while fructose is the structural isomer. On the contrary, while glucose and fructose can be found in natural sugars, especially in [...]
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History of Chemistry: Main Points

Nobel Prize in Chemistry is an award given yearly by the Royal Swedish Academy of Sciences to scientists who confer the greatest benefit to humanity in the various fields of chemistry.
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Sulfur Mustard: Hazards, Properties, and Warfare Usage

As it is a lipophilic compound, the skin, the eyes, and the respiratory tract easily absorb the chemical. Sulfur mustard is also hypothesized to affect one's fertility and serve as a carcinogen, although the former [...]
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The History of European Alchemy

The birth of this concept was found through the merger of the philosophies of Aristotle with Christian theology and for centuries predominantly found in Europe of the middle Ages and Renaissance.
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Chemical Composition of Cells: A Lab Experiment

This laboratory experiment focuses on the chemical composition of cells, appropriate identification of which contributes to the understanding of distinctions between organic and inorganic chemicals.
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Stoichiometry and Process Calculations

The method used to determine the unknown compound is called Gravimetric analysis. According to Helmenstine, the gravimetric method is used to measure the compound's mass.
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PH Titrations & Buffer Solutions Experiment

The objective of this experiment was partly to determine the behaviour of PH curve of a triprotic acid and hence determine its pKa value, and on the other part to determine the concentration of an [...]
  • Pages: 7
  • Words: 986

Enzyme Determination of Glucose

The glucose amount was then obtained from the values of the standard glucose concentration using Beer-Lambert's law. The results of the sample glucose with unknown concentrations were recorded in the second table.
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Pasteurization: Processing Food Substances

The second benefit of pasteurization is witnessed in the deactivation of enzymes that are found in various food substances. It is only the process of pasteurization that can lower the activity level of the enzymes.
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Atropian Iron: 1st AD Stability Operations Decision Brief

Solving the problem is essential for securing Atropian independence and sovereignty from existing and potential separatist and insurgent challenges and addressing the root causes of the failure of the Government of the Republic of Atropia.
  • Pages: 3
  • Words: 795

The Universal Nature of Biochemistry

If the power between the two atoms is the same they share the electrons and form a covalent bond, but if one atom's power exceeds the other, then one loses the electron or electrons to [...]
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Biochemical Oxygen Demand Measurement

The essence of the method of measuring BOD is to establish the concentration of molecular oxygen in the water sample immediately after the selection and after incubation periods of the sample.
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Concertation of Liver Enzyme Affects How It Works

We elaborate further to state a catalyst as a substance that increases the rate of reaction and is not used up in the reaction, the products of the reaction are different substances of the reactant.
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Pinacol Rearrangement and Alcohol Reactions Lab

The purpose of this experiment is to use the researcher's background knowledge on alcohol reactions to explain more complex reactions. The objective of this reorganization is to generate a ketone.
  • Pages: 8
  • Words: 2200

Acid Extraction by Acid-Base-Coupled Extractants

Acetylsalicylic acid Physical properties Acetylsalicylic acid exists in the form of white crystals with a molecular weight of 180. The figure below shows the structure of acetylsalicylic acid Acetylsalicylic acid is soluble in water with [...]
  • Pages: 10
  • Words: 3105

Electrochemical Methods of Analysis

The choice of method is determined by the chemical compound to be analyzed, the time available, the level of accuracy needed and the available time.
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Redox Flow Battery Electrolyte Types

The principle of operation is the same as for water-based electrolytes, though no single popular type can be named due to the ongoing experimentation and innovation in the field.
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The Use of Methane as a Biofuel

This is mainly based on the fact that it has a consistent composition of chemicals, which gives it better conversion ability to different by-products, including methanol.
  • Pages: 11
  • Words: 3050

The Role of Polyvinyl Analysis

Vitally, since this reaction is exothermic, it is necessary that cooling of the vessel is done in the due course to keep the temperatures low.
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  • Words: 645

Caffeic Acid Phenethyl Ester Overview

Anti-oxidative properties of CAPE: These properties in CAPE were illustrated as early as 1993. Anti-inflammatory and chemo-preventive properties of CAPE: As early as 1993, studies showed the inhibition property of CAPE on 5-lipoxygenase.
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Water Fluoridation Plant Analysis

On the other hand, the flow meter provides the rates of water flow to the dosing facility, which interprets the amount of fluoride needed in the water.
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Determination of M2+ Ions in Mineral Water

Titrometry is one of the techniques that chemical analysts use to determine the concentration of metal ions in mineral water. A buffer is necessary to provide suitable pH for the complexing of EDTA with metal.
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The Interpretation of Radium

In a conclusion, this paper has brought into perspective the elemental radium as well as some of its important characteristics essential for one to be safe.
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The Chemical Communication System

The appropriate elaboration of this communication is through the study of Biological Engineering, which is an application of different concepts and methods of biology to get solutions to life sciences.
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Sugar Results: Experiment on Chocolate

When the concentration of glucose was high, the color and odor of the reaction mixture were darker and more intense, respectively, due to a larger amount of products formed.
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Methoxyprazin in Aroma of Wine (Sauvignon)

The occurrence of isobutylmethoxypyrazine-like aroma in the making of wine is regularly associated with the grape variety, which proves that the methoxypyrazines are produced under genetic control in the grape berry.
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Chemistry: Cooking Temperatures

Specific temperatures, therefore, are needed to be observed during the preparation of specific foodstuffs and, of course, for specific durations. The range of temperatures between 41 F to 135 F also known as the danger [...]
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Conduction Phenomena in LI-Ion Batteries

Other challenges the researchers face are the constantly changing conduction properties of the anode and the difficulty in measuring the conductivity and microstructure of the solid-electrolyte film.
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Acute Acrylonitrile Toxicity

The metabolism of acrylonitrile is via multiple pathways but the main one involves the pairing of acrylonitrile with glutathione-S-transferase as a catalyst.
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  • Words: 556

Chemistry of Organic Contaminants

The essay will discuss the biotransformation and bio-degradation of significant groups of organic contaminants, the major reactions and the enzyme accountable, experiments design and aspects that determine their ecological significance.
  • Pages: 13
  • Words: 3567

Comparison Mercury Testing in Fish Tissue Samples

For validity and reliability of the results, sample blanks are analyzed alongside the samples to ensure that no contamination is carried over to the next sample and also to check the accuracy of the analytical [...]
  • Pages: 2
  • Words: 623