Chemistry Essays

Factors Affecting the Rate of a Reaction
Example essay. Last modified: 2nd Jun 2017
Introduction: The aim of this experiment is to investigate whether changing the concentration of a solution will have any effect on the rate of the reaction. We are trying to prove that increasing the concentra...

Concentration of a Limewater Solution
Example essay. Last modified: 26th May 2017
Introduction: To determine the concentration of a Limewater Solution Aim To determine the concentration a 250 cm3 limewater solution, this contains approximately 1g dm-3 of calcium hydroxide. Also known is th...

Polymer: The Glass Transition
Example essay. Last modified: 18th May 2017
Introduction: Formulation Chemistry – Polymer: The Glass Transition In the solid state, semicrystalline polymers exhibit both amorphous and crystalline morphology. The glass transition is a property of only t...

Vibrational frequencies of water molecule
Example essay. Last modified: 17th May 2017
Introduction: Question 1 Normal modes and vibrational frequencies of water molecule HF/3-21* optimised geometry of the water molecule H bond length 0.967 HOH bond angle 107.7˚ ...

An overview of the Ozone Layer
Example essay. Last modified: 16th May 2017
Introduction: INTRODUCTION “THE OZONE LAYER” The ozone layer is a portion of earth atmosphere that contains high levels of ozone. The atmosphere is divided into five layers: the troposphere, the stratosp...

Determination of aspirin and caffeine
Example essay. Last modified: 11th May 2017
Introduction: Results: Identify and mark the signals in the spectra and note the chemical shift values of the methyl resonances in aspirin and caffeine and the methylene resonance in s-trioxane. Using above express...

Calorimeter used for calorimetry
Example essay. Last modified: 10th May 2017
Introduction: Introduction What is a Calorimeter ? Definition: A calorimeter is a device used for calorimetry, the science of measuring the heat of chemical reactions or physical changes as well as heat capacity....

Chemistry Report on Explosives
Example essay. Last modified: 8th May 2017
Introduction: Chemistry Report on Explosives What is meant byoxidation and show how oxidation reactions are used to cause explosions. Oxidation is the term used for the combinationof a substance with oxygen, or in ...

Equilibrium Le Chatelier's principle
Example essay. Last modified: 5th May 2017
Introduction: Introduction: Equilibrium is defined as the point at which the forward and reverse rates of a reaction are equal (1). A system in dynamic equilibrium is a specific example of a system in a steady stat...

Concentration of sulfuric acid
Example essay. Last modified: 5th May 2017
Introduction: Abstract My research question, as the topic states, is ‘How would the concentration of sulfuric acid affect the rate of hydrogen gas produced when it reacts with iron?’ The reason that I w...

Chemical bonds: An introduction
Example essay. Last modified: 3rd May 2017
Introduction: Introduction A chemical bond is an attraction between atoms brought about by a sharing of pair of electrons between to atoms or a complete transfer of electrons. There are three types of chemical bond...

rates of chemical reactions- lo3 questions
Example essay. Last modified: 2nd May 2017
Introduction: Rates of Chemical Reactions- LO3 Questions 1.1 Two Grand-Pa tablets would have the same effect as one Grand-Pa powder this is because Grand-Pa Headache Tablets each contain, Aspirin: 226,8mg, Parace...

The chemistry of drug metabolism
Example essay. Last modified: 2nd May 2017
Introduction: Introduction To describe and explain the chemistry of drug metabolism a basic foundation of knowledge is needed to understand the concepts. Metabolism is one of the methods for analysing the effect of...

Laser ablation technique
Example essay. Last modified: 2nd May 2017
Introduction: First laser ablation technique was invented in 1960. The history of laser ablation studies begins with the birth of the laser itself. Laser ablation is a technique of removing of material from superfi...

Chemical compounds
Example essay. Last modified: 2nd May 2017
Introduction: Introduction Chemical compounds can generally be classified into two broad groups: molecular compounds and ionic compounds. Molecular compounds involve atoms joined by covalent bonds and can be rep...

Urinary Excretion and Paracetamol
Example essay. Last modified: 1st May 2017
Introduction: Investigateurinary excretion of paracetamol in man. Paracetamol, known as acetaminophen in the USA, is one of the most commonly used analgesic and antipyretic drugs available over-the-counter. Its com...

Textile dyeing and textile wastewater treatment
Example essay. Last modified: 27th Apr 2017
Introduction: Advances In Textile Dyeing And Textile Wastewater Treatment Using Advanced Oxidation And Membrane Filtration Technologies: A Review Introduction The textile industry is a diverse sector in terms of pr...

IR spectroscopy of cigarette smoke
Example essay. Last modified: 25th Apr 2017
Introduction: In this experiment the constituents of cigarette smoke in undisclosed brands A and B were analysed using Fourier infrared spectroscopy (FTIR). The smoke from the cigarettes of both brands were tested ...

Electromagnetic induction: An introduction
Example essay. Last modified: 24th Apr 2017
Introduction: Introduction Electromagnetic induction is the production of voltage across a conductor situated in a changing magnetic field or a conductor moving through a stationary magnetic field. Michael Faraday ...

The hydrogen bomb
Example essay. Last modified: 21st Apr 2017
Introduction: INTRODUCTION The Hydrogen bomb was first suggested by Edward Teller in 1942 but active work on it was pursued in the summer of 1942 by Oppenheimer,Teller,Los Alamos and others. The first thermonuclear...

The cholinergic drug
Example essay. Last modified: 20th Apr 2017
Introduction: A cholinergic drug is a drug that acts on the peripheral nervous system, the central nervous system, or both and enhances the effects that are mediated by acetylcholine. It is also known as cholinerg...

Importance of chemical reactor
Example essay. Last modified: 17th Apr 2017
Introduction: INTRODUCTION The most important unit operation in a chemical process is generally a chemical reactor. Chemical reactions are either exothermic (release energy) or endothermic (require energy input) an...

The drug metabolism
Example essay. Last modified: 17th Apr 2017
Introduction: Introduction: If an exogenous microorganism enters the human body, this invokes the immune system to produce antibodies to come into contact with the foreign potentially pathogenic species and lead to...

Determination of crude fiber
Example essay. Last modified: 23rd Feb 2017
Introduction: Dietary fiber can be defined as sum of polysaccharides and lignin that are not digested by human digestive enzymes. The major components of dietary fiber are cellulose, noncellulose such as hemicellul...

Thin layer chromatography (TLC)
Example essay. Last modified: 11th May 2015
Introduction: It stands for Thin Layer Chromatography. It’s a simple technique used by chemists in separation of Mixtures in addition to supporting the identification of the separated compounds by comparing t...