Chemistry Essays

Effect of Synthesis Temperature on Nickel-Cobalt Hydroxides

Example essay. Published: 2 August 2017

Effect of synthesis temperature on the morphology and pseudocapacitive behavior of Nickel-Cobalt layered double hydroxides Li-Ming Lua, Shan-Shan Xua, Rui-Qi Fenga, Zhan-Bing He b, Tie-Zhen Rena* an…

Hydrated Copper Sulfate Formula

Example essay. Published: 21 July 2017

Aim The aim of the experiment was to determine the empirical formula of hydrated copper (II) sulphate(CuSO4· xH2O)by experiment and to investigate the changes of copper (II) ions in solution. I…

Determination of Vitamin C in Tablets

Example essay. Published: 19 July 2017

INTRODUCTION Nowadays, health has become the most important property of human’s life. Commonly, diets with high contents of fruits are protective against several human diseases such as cardiovas…

Synthesis of Chloropentaamminecobalt (iii) Chloride

Example essay. Published: 11 July 2017

Introduction Cobalt was discovered by Georg Brandt in 1735 interestingly the name Cobalt originates form the German word “Kobald” which means goblin or evil spirit. The original use of cob…

Synthesis of nickel complexes

Example essay. Published: 7 June 2017

Abstract The purpose of this experiment was to investigate the Ligand exchange that occurs when different Nickel complexes and reacted with Triphenylphosphine. Introduction Triphenylphosphine was firs…

Factors Affecting the Rate of a Reaction

Example essay. Published: 2 June 2017

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. Published: 26 May 2017

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…

Sodium Thiosulphate and Hydrochloric Acid

Example essay. Published: 18 May 2017

To investigate how the rate of reaction between Sodium Thiosulphate and Hydrochloric acid is affected by changing the concentration….

Polymer: The Glass Transition

Example essay. Published: 18 May 2017

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. Published: 17 May 2017

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. Published: 16 May 2017

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. Published: 11 May 2017

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. Published: 10 May 2017

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. Published: 8 May 2017

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. Published: 5 May 2017

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. Published: 5 May 2017

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. Published: 3 May 2017

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. Published: 2 May 2017

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. Published: 2 May 2017

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. Published: 2 May 2017

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…