Chemistry Essay Examples and Topics. Page 3

In this illustration of a city, the following aspects of a city will be used to show a correlation to organic chemistry theories.

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 [...]

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 [...]

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 [...]

The serpentine asbestos is usually white in color and is found in almost every part of the world. The use of asbestos is still common in China and Russia.

The tertiary structure is the three dimensional structure of a single molecule of a protein. The breaking of a peptide bond is by the process of amide hydrolysis.

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 [...]

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 [...]

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 [...]

The cellulose and proteins and soluble sugars are combined in the last step to yield fuels, chemicals, feeds, and waste products.

Studies have strived to demonstrate the source of discrepancies in the level of pesticide residues found in milk and what researchers predict should be the quantity of pesticide found in the milk.

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.

Compare the strengths of different types of intermolecular forces in molecules based on their boiling points. What are the molecules that the model uses in illustrating intermolecular forces?

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.

Write a concise figure legend with a minimal number of words that allows the reader to understand what he sees. Note: Do not repeat all details of the methods in the legend!

In determining the behavior of the DTAC and CMC, there was a comparison of DTAB results in terms of alkyl chain reaction.

1 The SN2 substitution reaction occurs when the attacking atom or group is a strong nucleophile that hits the electrophile from the rear end thereby ousting the leaving group.

Moreover, in the first and the third groups, the wheat seeds were placed in wetted paper towels whereas in the second and the fourth groups, the wheat seeds were placed on top of the wetted [...]

The extract, which is the blue solution obtained from cabbage, was poured into another beaker and the pieces of the boiled cabbage were discarded.

The osmolarity of various solutions was also evaluated by noting the changes in weight of potato cylinders in the solutions. The movement of carmine particles in the water was random.

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 [...]

For instance, there is a misconception that "a magnetic field exerts a force on both the steady and the moving objects", this is not always the case.

The study of TiO2 is important since its properties: size of the pore and porosity are the main determinant of mass transportation of [Co3]II/III.

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.

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.

The authors attribute the decrease in mechanical performance at low densities to the random porosity, which is present in both natural and artificial cellular materials.

Energy demand from industrialized countries and the control of CO2 emission influence CO2 capture from gaseous streams. The cost of using the CSS technique influenced the discovery of porous materials for the remove of CO2 [...]

According to Stein, the value of the index describes the stability of the calcium carbonate contained in water. In the event that the value of LSI is at zero, then water is said to be [...]

1 The disadvantage of oat flour is that due to the lack of gluten the dough with it is not as elastic, and as a result the final foods may fall apart.

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 [...]

The rest are artificial isotopes and, are a consequence of radioactivity. The table below shows a summary of the radiological properties of strontium isotopes.

The type of catalyst and the hydrogen to carbon monoxide ratio in the syngas determine the nature of the main reaction.

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.

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.

However, the low quantities of cadmium in the surroundings and the intricacy of the sample matrix obscure the measurement of cadmium levels in salt.

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 [...]

The dark reaction which happens in the absence of light but inside the stroma utilizes CO2 and ATP to form sugars in what is referred to as the Calvin Cycle.

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 [...]

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.

The most notable isotope of strontium is strontium-90, which is produced as an outcome of the nuclear fission of uranium or plutonium.

On the other hand, the composition of the electroless nickel coatings depends on the conditions in an electroless plating bath and the formulation of the bath.

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.

The pH of the acid was measured and recorded. The pH of the buffer was also measured and recorded.

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 [...]

The Eotvos number and Morton number together are used to characterize the size of the bubble and shape moving in the surrounding liquid.

This is achieved since the process changes the composition of the renewable fuels into a form that is similar to normal fossil fuels used by vehicles.

The types of cement are based on the amount of tricalcium silicate, dicalcium silicate, and tricalcium aluminate found in the end product.

In addition to the MHD forces, the other force that acts on the bubbles is in the form of buoyancy and it originates from an anode.

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.

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.

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 [...]

The process of co-trascriptional recruitment of yeast splicing factors is involved and Hmt1 affects the recruitment of Snp1 and U1-SnRNP-associated factors.

The type of bonds and the combination depends on the position of each element in the periodic table. The elements in a compound are always in a fixed ratio and the arrangement is defined.

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.

Furthermore, the grape cultivar is a major contributor to wine quality because it determines the amount and type of the chemical components of aroma.

There was also a need from the people for the increase in the periods of storage of food. One of the greatest objectives of Louis was to craft France to be the most successful state [...]

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.

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 [...]

Due to a considerable increase of chemical sensitivity that is observed in glycans, the ideas of ESI mass spectrometers become more urgent and obligatory for research.

Most inorganic polymers come with different properties and characteristics hence the reason why they are used in different ways and for different things.

In this experiment, we will provide a systematic procedure for establishing the mass of the outside layer on a zinc-coated steel sheet.

The process of photosynthesis and fermentation was the main focus of the practical exercise. The role of the fermentation process to provide energy for the yeast cells is shown in this experiment.

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 [...]

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 [...]

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.

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 [...]

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.

The sample which implied using chilled water has shown the latest initial, and effect of retardation) and final set ). 015 for the warm water sample, and 0.

The article under consideration is called CuOx TiO2 Photocatalysts for Production from Ethanol and Glycerol Solutions and is dedicated to providing and seeking solutions for the cleaner methods for 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.

For the SANS data, Intensity patterns for samples and appropriate backgrounds were collected using a wavelength of 6 with a wavelength spread, change in / , of 0.15.

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.

The aluminum industry in Australia is its economic backbone as it is one of the major products produced in the country and is a direct source of income to over 16,000 Australians.

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.

For determining the mass of acetylsalicylic acid in 500 mg placebo and control the following calculations will be assumed to be done: Placebo 0.

In addition, silver is commonly formed in a wide variety of hydrothermal deposits and is associated with gold and the base metals such as copper, lead and zinc. Increase in silver concentration is an indicative [...]

The difference in the energy of the impinging X-ray and the ejected electrons gives the binding energy of the electron to the atom.

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

When the solution is treated with an acid, the H+ ions in the acid will add to the COO- to form COOH. The electrode of a pH meter is placed in the solution and the [...]

It is due to the presence of traces of the element boron that the diamond has its blue color. However, to perceive this band a certain amount of energy is required to excite the electrons.

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 [...]

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.

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, [...]

The purpose of this report is to determine the optimal pH of the enzyme invertase, compare the amounts of sucrose in three beers, and create a protein purification table.

Among the advantages of the approach is its convenience of implementation over a broad range of temperature and pressure conditions, as well as cost-efficiency and low energy requirements.

If we bring the magnet to the south side's structure, the needle on the disk will be oriented towards the magnet because the magnetic field of the material will be larger than the field of [...]

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 [...]

Nanotechnology facilitates the rearrangement of atoms and molecules and thereby gives control over the characteristics of the product that is being made.

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 [...]

The hypothesis revealed that the majority of the student all acclaimed that the issue of concern underlies in the safety of the drinking water, the contamination issue become the order of the day.

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 [...]

Cyclohexene is a hydrocarbon with a formula C6H10. This molecule is related to cyclohexane ring with a replacement of one hydrogen atom by a hydroxyl group.

Geothermal cycle The use of tin dates back in the 3,500 B.C.and is one of the oldest metals that was used by man. In addition, blood or urine may be used to determine the amount [...]

Other laboratories advanced the Hydrogenation process using expensive alloy catalysts with no following termination of the problems of unsteadiness due to the attendance of oxygen, dampness, or water vapor in the reactor.

Ozone, a photochemical pollutant, is formed by the oxidation of explosive organic compounds in the presence of sunlight and oxides of nitrogen in the atmosphere.

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 [...]

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.

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 [...]

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.

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.

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 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.

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

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 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 [...]