Chemistry Essay Examples and Topics

The relative proportions of the various components of the plasma are as characteristic as the changing proportions of the different macromolecules of the body.

He schooled in Turin and having come from a family background of lawyers, his career was oriented towards law whereby at the age of 16 years he had already become a bachelor of jurisprudence and [...]

In such assembly, if gas is produced, the liquid level would fall in the pipettes, and the difference would be equal to the volume of gas.

The current paper is aimed at considering and comparing traditional coal energy and the newly popular wind turbine energy in the context of their costs and environmental benefits.

Thus, it is also the objective of the experiment to ascertain whether the addition of these two groups to the PAH lowers or elevates the max of the label.

The stratosphere is the next layer of the atmosphere and is from that 7 17 km range to about 30 km above the earth's surface.

The amount of oxygen present in the atmosphere and the nature of the material it comes in contact with determine the process of oxidation.

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 [...]

To explore the base-catalyzed aldol condensation between 3, 4-dimethoxybenzaldehyde, and 1-indanone under solvent-free conditions; To purify the product through recrystallization; To evaluate the melting point of the product.

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 [...]

When it comes to seeing, the photoreceptors that are located in the eye carry the message and relay it to the brain.

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.

The protein is widely expressed in highly homologous forms, suggesting that the roles played by metallothionein are essential to a variety of biological processes, and that the protein has a long evolutionary lineage.

Some of the chemical processes used in the bottom-up approach include sol-gel process, the reaction of molecules in a flask, reverse microemulsion and flame synthesis, which have been used to make silica nanoparticles, nanozeolite, nanocatalysts [...]

Let me turn your attention to the processes that occur on the interphase boundary between the inner surface of the silica capillary and the water-electrolyte solution that fills up the capillary.

The goal of this experiment was to illustrate various parameters of radioactivity, including the plateau of a Geiger-Muller counter, finding the resolving time of a Geiger tube, verifying the inverse square law, measuring the penetrating [...]

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

Alfred Nobel is one of the most prominent figures in the history of chemical engineering due to his role in developing and improving explosives.

The purpose of the experiment was to examine the expansion of a perfect gas by determining the specific heat ratio through an adiabatic process and the ratio of volume using an isothermal process.

However, it is crucial to point out that cadmium is highly toxic, which means that it is necessary to prevent humans and animals from the exposure to it.

To determine the concentration, the molality of NaOH solution was calculated assuming that at the equivalence point, the number of millimoles of NaOH equals the number of millimoles of KHP.

The main difference between acidic and basic solutions is the concentration of hydrogens ions: for the former, it is higher than that of pure water, and for the latter, it is lower.

The goal of this paper is to discuss the chemical properties of water that are most important for life on Earth.

Thus, the calculated molarity of NaOH is used to compute the molar solubility of KHT, which is the quantity of KHT moles that are liquefied in every liter before saturation level.

The solubility product constant is calculated by measuring the concentration of anions and cations in a solution and determining their product.

Consequently, rigorous research is ongoing to elucidate the properties and machinery of biological enzymes to facilitate the exploitation of biocatalysts in the chemical industry.

The review of the structure of water molecules shows that it has two atoms of hydrogen and one atom of oxygen.

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 [...]

It is mainly found in the form of oxides and banded iron formations. Iron is an important component in the production of energy.

Water alkalinity is a measure of the acid-neutral capacity of water whereas water hardness is associated with the ability of water to form a lather in soap.

The rate law demonstrates how the rate correlates with the concentrations of the components of the reaction. It is possible to note that "the power of the concentration in the rate law expression is called [...]

The objective of this report is to evaluate the properties, limitations, and prospects of future applications of fiber-reinforced concretes and polymer reinforced concretes.

The table is best illustrated by vertical and horizontal lines of elements with the latter called groups while the former are called elements.

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 [...]

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 [...]

Therefore, the moles of the limiting reagent is 0. 025, and the mole of the product is 0.025.

The pH of a solution at the equivalence point depends upon the nature of the acid and the base being titrated.

5 ml of KMnO4 were added to the second test tube, which was the color standard for the purple permanganate ion.

To prepare 500 grams of a 5% aqueous HCl solution, the chemist must have some basic information about the solute and the solution.

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.

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 [...]

20 In the scheelite BiVO4, it is possible to find out a hybridized band structure with Bi 6s and O 2p orbitals.

The amount of radionuclides depends on the concentration in soil, leachability of radionuclide and the solubility, and the sorption capacity of soil particles [2].

The amount of heat to be used during simmering is not indicated. It is necessary to indicate the amount of heat to ensure uniformity.

This variability is apparent in the morphology of starch granules regarding size and shape, the amount of amylose, the structure of amylopectin concerning the length of chains, and the position of branching.

Therefore, the gluten content of flour affects the physical properties of flour and the corresponding baked products. The leavening agent was baking powder, which consists of sodium bicarbonate and potassium bitartrate.

Of the two ions, the nitrate ion is more stable than the nitrite ion but can be reduced by the actions of microorganisms to form the latter ion.

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 [...]

Isotopic composition analysis is used to identify cases of food fraud by quantifying the stable isotopic ratio of elements such as carbon, nitrogen, hydrogen, oxygen and sulphur in food.

The weighed salt sample was then put in a sample press machine to be flattened after which the height of the flattened sample was measured and found to be 4 cm.

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. [...]

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.

This paper aims to analyze the purpose of the article, the methods used by the authors, and the implications of results.

Therefore, the presence of nitrite in water is usually used as an indication of pollution due to the formation of nitrite ions during the biodegradation of these compounds.

1. What is the research question the author(s) is trying to answer? In the article, there is no research question the authors try to answer. They do not pose any questions, as well as they do not rely on any questions that could be possibly developed in past studies. Through the lines in the introductory […]

1. What is the research question the author(s) is trying to answer? In fact, there are no direct or indirect research questions in the article. For that reason, it is hard to say what particular questions the authors tried to answer in their project. In the beginning, they identified β–lactoglobulin as one of the main […]

The explanation of the activity for Trp and Tyr is based on the ability of the indolic and phenolic groups to perform as hydrogen donors.

A number of homogeneous catalysts, including liquid catalysts, quaternary ammonium salts, transition metal complexes, and ionic liquid catalysts have been investigated for their catalytic potential in the cyclic addition of CO2 and styrene oxide. The [...]

Molar mass: 118. Molar mass: 18.

Molar mass: 118. Molar mass: 18.

The first objective of the experiment was to demonstrate how pinacol undergoes rearrangement to form pinacolone under the catalysis of heat, acid, and boiling chips.

The use of corn in the production of ethanol has a number of drawbacks. This is attributed to the fact that the production of high amount of ethanol requires corn in large quantities.

This reflective treatise attempts to explore the invention of artificial light, benefits, and usage in the field of chemistry. To begin with, artificial light is used in most of the experiments in the laboratory to [...]

In the first case, adding hydrochloric acid to the produced azo dye led to the change of the color from dark red to orange, and the reaction with sodium hydroxide resulted in the change from [...]

The report describes the source of materials in the manufacture of aluminum alloys, the manufacturing process, and the economic importance of the product.

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 [...]

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.

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 [...]

The TLC sheet was placed in a universal bottle containing solvent A with the line of origin nearest to the bottom but above the solvent. The positions of the solvent and each pigment molecule were [...]

The Periodic Table is the tool for arranging elements based on the correlation between the periodic function of their atomic numbers and the properties of the elements in question.

Since the equation, =E , yields unique energy, which describes distinctive waves that define the probability of finding an electron in the space of an atom, Schrodinger presented another characteristic, namely, the particulate behavior of [...]

In this experiment, it was hypothesized that the rate of photosynthesis rises with an increase in the concentration of carbon dioxide and went on to test the hypothesis.

This paper will discuss the carbon cycle, which is the continuous movement of carbon atoms through different paths, with a focus on the two major divisions of the process and the human impact on the [...]

The skin is one of the main body organs that can be exposed to the chemical. The distribution of chloroform throughout the body depends on the level and route of exposure.

Therefore, PSVs assist in avoiding the confusion since students can make allusions to their previous knowledge and by solidifying their comprehension of multiple themes.

Many factors such as techniques of dyeing, the contents, the processes and possibilities of recycling influence the choice of size and type of the membrane to be used in a dyehouse [25].

As the residual flue gases move to the other chambers, the pressure of CO2 falls, and thus, collects in one site.

To this end, the literature in this essay tries to establish the challenges that come with the adoption of FO by a state. To this end, the quality of the feed-water influences the fouling of [...]

The general background provides information on the various terms used to describe nylon, the history of nylon, a comparison between nylon and other natural materials, such as cotton and silk, and the standards set aside [...]

5 The popularity of polyethylene is rooted in the fact that this polymer is cheap, flexible, durable, and chemically resistant6 It is important to take a closer look at the manufacturing process in order to [...]

The article focuses on the thickness of the membrane and its effects on the said process. In the process of carrying out the study, the thinking and rationalization of these researchers were governed by the [...]

The combination of humid conditions and average temperatures purport the corrosion of rocks containing iron elements by the formation of iron oxide that weakens the rocks.

In fact, some studies have explored the unknown elements of the catalytic process in naphtha reforming. It is also necessary to note that elements in the hydrocarbons and concentrations of other elements are responsible for [...]

The heating facilitates the production of formaldehyde gas that bonds the hair with the conditioner. The entire process exposes customers to the risk of inhaling the formaldehyde gas that has negative effects on the body.

These important steps are the selection of the fibers which can be used for the production of the wet mopping cloths; the process of laying the chosen type of fibers to make a definite type [...]

The majority of commercial PP is isotactic and possesses a transitional intensity of crystallinity amid the one of high-density polyethylene and low-density polyethylene.

Ethylene glycol polymers are products of additive reactions between ethylene oxide and ethylene glycols. The boiling point and state of ethylene glycol polymers are proportional to molecular weight.

Ethanol is the product of the fermentation of plants, and that is why it can be called a renewable source. That is why it can have a great influence on the issue of energy security.

Despite being various categories of the lube oil as mentioned earlier in the project, mineral lube oil from petroleum is the commonly preferred lubricating oil to the synthetic lube oil.Fig.showing lubricating oil The history of [...]

Following the procedure in the production of acetone, the several materials emerge during and after the production. The production of acetone In the feed drum: A feed is a tank like object used in the [...]

The aim of the EPA is to continue assessing the health effects of perchlorate, along with the science behind their occurrence in public water systems. The state of California also regulates perchlorate as a contaminant [...]

A delicate balance in the quantities of key ions such as magnesium, phosphate and ammonium is necessary for the success of the method.

In both studies, time was a key factor that helped to determine the blood lead levels and effects of lead on body organs.

Based on these findings, the study came to a conclusion that exposure to DDT and DDE during the prenatal period can to lead to delays in the development of infants.

The selected toxin, which affects the nervous and cardiovascular system, is mercury. Once the nervous system is exposed to mercury compounds, its effectiveness and response are reduced by the harmful compounds.

Manufacturers utilize various techniques in polymerization and one of these is the application of several additives to vary the plastic properties and to attain the desired results for commercial purposes.

The Statement of the Research Objectives: Why Bothering It is obvious that the key goal of the given research is to check for the advantages and the disadvantages of the means of water purification and [...]

The curious mind of Pierre on why a substance seemed to defy a scientific law started the journey that led to the discovery of polonium and radium.

This paper is therefore an in-depth analysis of the extraction of lubricating oils by looking at the methods of extraction, description of processes, purpose of extraction and new developments in lubricating oil extraction with emphasis [...]

During the de-waxing process, the solvent is subjected to a mixture of the waxy oil. Evaporators The evaporator is used in recovery of the solvent from the de-waxed oil and wax.

Therefore, temperature is the determinant of the absorption of the vapor of the combustible liquid by the air. The flashpoint of a liquid is the least temperature, which there will be enough concentrated vapor of [...]

As a matter of fact, oxygen is present almost everywhere forming two thirds of the body mass of a healthy human being, it accounts for half the mass of the crust of the earth as [...]

Analysis of amphetamine and methamphetamine is carried out in a series of steps that entails employment of numerous tests for conclusive identification of this group of stimulants.

The amount of heat required in the blast furnace depends mainly on the following factors: The type of ore being used the composition of different ores is different and as such the heat required to [...]

This paper focuses on the application of chemistry in life as well as some of the hazards that it has presented to life.

The writer wants to know the source of the contaminants in his blood. The writer continues to describe the nature of the chemicals found in his body.

Enzymes are described as biological proteins which accelerate the rate of reaction of a chemical substance, while inhibitors are elements which reduce the speed of catalyzed reaction of enzyme through connecting into the enzyme and [...]

However, it is this severity of the social as well as the environmental issues associated with the production of the mineral that has generated a big concern from the global authorities leading to interventions of [...]

In the forensic labs, rudiments of environmental wellbeing and safety should be strictly considered. The required quantity of chemicals should be used in crime scenes, and excess spillage must be cleaned.

Chemical processes engineering deals with designing, manufacturing and operation of plant and machinery in industries. Process designing is the most basic and physical step in the whole process of chemical engineering.

The gas is used in the manufacture of ethane. The industry uses ethane to manufacture ethylene, which is a crucial resource in the manufacture of plastics and other chemical products.

It is important to note that, this type of fuel is a fossil fuel and is composed of hydrogen and carbon compounds; hence it is categorized as a hydrogen carbon fuel.

Silicon dioxide is available in plenty, and it can easily be found in several parts of the world. This is because of the ingredients used in making it.

In explaining conceptual change in science, a description of the development of new conceptual structures and their impact on the existing concepts that lead to the replacement of the old concepts is important.

Towards the end of the 18th century, many substances were identifiable in laboratory and the new Lavoisier concepts led to the replacement of the phlogiston theory.

In conclusion, meth is one of the most addictive drugs, with serious physiological and psychological complications hence, the need for individuals to watch their consumption habits.

His claim regards the presence of molten metal observed at the basement of the rubble of the collapsed towers. The smoke and dust was also observed to emerge in a sequential fast timing The molten [...]