Chemistry Essay Examples and Topics

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394 samples

Hydrated Copper (II) Sulphate Experiment

The objective of this experiment is to determine the amounts of the component parts of hydrated copper Sulfate. The third procedure is the scrutiny of sulfate ion in a sample of copper sulfate.
  • Pages: 4
  • Words: 1066

Solubility of Potassium Nitrate

According to Kotz and Treichel, the solubility of various substances increases with increases in the temperatures of their surroundings, although this is not always the case.
  • Pages: 4
  • Words: 1140

Bomb Calorimetry: Theory and Experiment

Bomb Calorimetry is one of the methods to calculate the standard heat of the reaction of various chemical processes. One of the ways of its application is the determination of the standard heat of organic [...]
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  • Pages: 2
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Rate Law for Iodine-Acetone Reaction

This experiment aimed at establishing the concentration of iodine with time by quantifying the absorbance of the reacting solution at a wavelength of 410 nanometers and finally determining the initial velocity of the reaction.
  • Pages: 3
  • Words: 697

Methyl Salicylate Preparation Using Esterification

The chemical process in this experiment entails reacting salicylic acid and methanol in presence of concentrated sulfuric acid, which catalyzes the reaction, and under reflux conditions to form methyl salicylate and water.
  • Pages: 7
  • Words: 2059

The Rate and Order of a Chemical Reaction

The method of initial rates was employed in the determination of the order and rate law for the reaction. The rate of the reaction and the rate law expression for the reaction were then established [...]
  • Pages: 3
  • Words: 923

P-Nitroacetanilide: Measurements and Calculations

Table 1 contains the data of direct measurements and indirect calculations for p-nitroacetanilide as a product of the EAS reaction of acetanilide. Then the theoretical mass of p-nitroacetanilide could be obtained by the following calculations: [...]
  • Pages: 2
  • Words: 694

Fractional Distillation Lab Report

The first ten droplets were collected in the first test tube at 80. As the temperature stabilized in the third test tube, 10 additional droplets were collected.
  • Pages: 2
  • Words: 756

Pinacol Rearrangement Laboratory Experiment

The first objective of the experiment is to elucidate the formation of a ketone from alcohol through the process of pinacol rearrangement in the presence of concentrated sulfuric acid, heat, and boiling chips.
  • Pages: 11
  • Words: 3066

Nucleophilic Substitution Reactions of Alcohols

The objective of the experiment is to demonstrate how substitution reactions of alcohol occur. Specifically, the experiment aims to demonstrate the formation of 1-bromobutane from 1-butanol through a nucleophilic substitution reaction.
  • Pages: 8
  • Words: 2137

Buffer Solution and Determination Changes in pH

It contains either a weak acid and its conjugate base, or a weak base and its conjugate acid. The equation links the measured pH of a solution, hydrogen ions concentration, and the dissociation constant of [...]
  • Pages: 4
  • Words: 983

The Effect of pH on Water Holding Capacity of Chicken

In the present laboratory work, the main issue is to investigate the potential relationship between WHC as a measure of moisture content and chicken pH; specifically, the question is to identify the effect of meat [...]
  • Pages: 3
  • Words: 974

Thin Layer Chromatography

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 [...]
  • Pages: 3
  • Words: 1218

The Experiment on Substitution Reactions of Alcohols

The purpose of the experiment is to study substitution reactions of alcohols because they can react as nucleophiles or electrophiles, depending on prevailing conditions of the reaction. This experiment illustrates the reaction of 1-butanol with [...]
  • Pages: 8
  • Words: 2059

KHT Molar Solubility Experiment

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.
  • Pages: 4
  • Words: 1322

Analysis of Lab: Heat of Fusion of Water

In this experiment, information was collected regarding the mass of the calorimeter and bowl, the mass of the empty calorimeter, the water, and the contents: all raw data are shown in Table 1.
  • Pages: 2
  • Words: 798

Nanofabrication. Bottom-Up vs. Top-Down Method

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 [...]
  • Pages: 2
  • Words: 606

The Heat of Dissolution and Neutralization Reaction

The colorimetric method of analysis is used to determine the heat released during a chemical or physical process: the heat released in such reactions is transferred to the water by the change in temperature, of [...]
  • Pages: 3
  • Words: 1152

The Solventless Reaction: The Aldol Reaction Condensation

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.
  • Pages: 2
  • Words: 582

Functional Group Identification

This makes organic chemistry to have a very important role of describing the reaction of the carbon compounds. The aim of the experiment was to identify the functional group of the two unknown organic compounds.
  • Pages: 4
  • Words: 1390

Contribution of Amedeo Avogadro to Chemistry

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 [...]
  • Pages: 2
  • Words: 583

Production of Acetone from isopropyl alcohol

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 [...]
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  • Pages: 8
  • Words: 2271

Primary Salt Effect in Kinetic of Ionic Reactions

The central purpose of this experiment is to study the primary salt effect in the oxidation reaction of iodide ions to iodine during sodium thiosulfate titration with appearance of salt KNO3 All steps of the [...]
  • Pages: 1
  • Words: 1114

Cooper and Silver: Physical and Chemical Properties

For the chemical and metallurgical industry, a thorough study of the properties of the materials used and the application of reference data for analysis and possible prediction of the results of a practical application is [...]
  • Pages: 7
  • Words: 1976

The Effect of Acid on Enzyme Activity

The addition of hydrochloric acid to the liver in beaker B lowered the pH for catalase. In beaker A, distilled water provided a neutral pH that was essential for the activity of catalase.
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  • Words: 621

Organic Chemistry – Contributions and in Life

Despite many challenges imposed on the balancing of equations of pertaining reactions, in school my interest was drawn into the study of organic chemistry, which entailed a study of organic carbon compounds.
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Lubricating Oil Extraction Methods

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 [...]
  • Pages: 8
  • Words: 2147

The Pinacol Rearrangement Organic Reaction

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.
  • Pages: 5
  • Words: 1660

Effect of pH on Protein Solubility

The volume of the mixture was made to 200 mL in a measuring cylinder. The concentration of the protein in the supernatant was determined using a biuret reagent.
  • Pages: 2
  • Words: 660

Materials Used for Ethanol Production

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.
  • Pages: 10
  • Words: 2849

Pinacol Rearrangement Experiment

The pinacol rearrangement constitutes the dehydration of pinacol and the stabilization of carbocation by the shift of methyl. The mechanism of the pinacol rearrangement commences with the protonation of one of the two OH groups.
  • Pages: 4
  • Words: 1230

Chemical Raising Agent in Bread in Lab Experiment

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.
  • Pages: 6
  • Words: 1703

Chemistry: Expansion Processes of a Perfect Gas

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.
  • Pages: 5
  • Words: 712

Food Dye and Bleach Reaction Experiment

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 [...]
  • Pages: 5
  • Words: 1353

Formula of a Complex With the Slope-Ratio Method

In analytical chemistry, there are several techniques for determining the formula of a complex compound, but in this laboratory work, the emphasis was on the applicability of Beer's law, recognizing the fact that when a [...]
  • Pages: 3
  • Words: 988

Pinacol Rearrangement: Chemical Lab Experiment

Undertake qualitative analysis of the product using IR and NMR techniques, which provide spectra of functional groups and chemical shifts respectively. Carry out qualitative analysis of the product using 2,4-DNP test, which can detect carbonyl [...]
  • Pages: 7
  • Words: 1974

Diffusion and Osmosis Experiments

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.
  • Pages: 6
  • Words: 1745

Interrelationship of Metabolic Pathways

These pathways are responsible for the breakdown of essential nutrients into Adenosine Triphosphate and other molecules necessary for the release of energy into the body.
  • Pages: 5
  • Words: 1417

Silver Characteristics as a Chemical Element

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 [...]
  • Pages: 3
  • Words: 882

Organic Compounds at Home and at the Workplace

One of the defining features of ketones and aldehydes is that these compounds are not soluble in water. In conclusion, functional groups of organic compounds can help define some of their features, such as dissolution, [...]
  • Pages: 1
  • Words: 308

Substitution Reactions of Alcohols: Practical Experimentation

The experiment aims to illustrate the way substitution reactions of alcohols transpire. In particular, the experiment aims to illustrate the way 1-butanol undergoes nucleophilic substitution reaction resulting in the formation of 1-bromobutane.
  • Pages: 9
  • Words: 2290

Alkanes and Alkenes: Structure and Reactions

The general structure of an alkane is CnH2n+2, where n is the number of carbons in the molecule. The general structure of an alkene is CnH2n, where n is the number of carbons in the [...]
  • Pages: 6
  • Words: 1697

Mixtures and Compounds in Chemistry

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.
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Plastic Impact on Humans and Planet

Plastic is any organic material that when heated and pressure applied, it can expand and after it has been cooled it retains that shape it had been subjected to.
  • Pages: 4
  • Words: 1079

Nylons: Production, Characteristics and Applications

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 [...]
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  • Pages: 16
  • Words: 4161

Flammable or Combustible Liquids

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 [...]
  • Pages: 12
  • Words: 3232

Research of Amorphous Solids in World

The purpose of this report is to describe the history, structure, properties, and applications in real life of amorphous solids. The molecules of an amorphous solid have a short-range order of action.
  • Pages: 9
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Substitution Reactions of Alcohols

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.
  • Pages: 10
  • Words: 2743

Diffusion in Polymer Solutions

Diffusion is the process of movement of atoms from higher concentration region to lower concentration region. The activation energy of vacancy diffusion is high compared to interstitial diffusion.
  • Pages: 20
  • Words: 5561

Three Types of the Hyaluronic Acid

In the human body, hyaluronic acid performs the crucial function of retaining moisture in the tissues and acts as a lubricant for the joints. Even though hyaluronic acid is a component of the body, the [...]
  • Pages: 3
  • Words: 946

Characteristics of Radioactive Emission

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 [...]
  • Pages: 5
  • Words: 1479

The MEK lubricant and de-waxing method

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.
  • Pages: 8
  • Words: 2144

Eggs: The Osmosis Process Investigation

The water was carefully drained after 40 minutes, and the egg's weight in the cup was calculated. Meanwhile, we found that corn syrup had a lower concentration of water molecules; therefore, through osmosis, water molecules [...]
  • Pages: 1
  • Words: 421

Naphtha Reforming: Progress and Profits

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 [...]
  • Pages: 15
  • Words: 4185

UV & VIS Spectroscopy Experiment

The first was to determine the unknown concentrations of samples A and B using linear dilution while the other employed the serial decimal dilution method.
  • Pages: 6
  • Words: 891

Amperometry: Chemical Analysis

First of all, it should be recalled that the use of electrochemical methods in quantitative analysis is based on the use of dependencies of measured parameters of electrochemical processes on the content or concentration of [...]
  • Pages: 11
  • Words: 3681

The Production of Aluminum

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.
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  • Words: 1101

Sodium Chloride – Science of Salt

Sodium chloride is a very important compound and it has thousands of uses in real life, few of them are as follows: NaCl is a raw product that is commonly used in the production of [...]
  • Pages: 3
  • Words: 852

Acid Effects on Starch in Industrial Applications

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.
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  • Words: 2011

Swiffer Wet Refills Materials

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 [...]
  • Pages: 7
  • Words: 1913

Methamphetamine (Meth)

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.
  • Pages: 3
  • Words: 894

Aqueous Solution Definition in Chemistry

However, regarding the title of the article, the examination of the gel formation is missing in the abstract, and several questions about the chosen research process emerge. The next section in the article is devoted [...]
  • Pages: 6
  • Words: 1760

Types of Saturation Indices: Calcium Carbonate

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 [...]
  • Pages: 6
  • Words: 1698

Chemical and Physical Properties of Ethane

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.
  • Pages: 2
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The Reactive Oxygen Species and Oxidative Stress

In the case of mitochondria, this is explained by the fact that in the respiratory chain there is a "leakage" of electrons from I and III mitochondrial enzyme complexes, due to which about 2 5% [...]
  • Pages: 1
  • Words: 395

Glutathione Protection from Toxic Compounds

The peculiarity of the first stage of synthesis is the creation of a peptide bond by joining not the - but the -carboxyl group of glutamic acid to the amino group of cysteine.
  • Pages: 7
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Framework Polymers: Gas Absorption Capacity

The use of chlorine atoms as components of the polymer framework was also shown in Mart n et al; the presence of chlorine allowed a reduction in the total carbon fraction of the polymer, resulting [...]
  • Pages: 5
  • Words: 1388
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