Chemistry Essays
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Here you will find many different essay topics on Chemistry. You will be able to confidently write your own paper on the influence of Chemistry on various aspects of life, reflect on the importance of Chemistry, and much more. Keep on reading!
A balanced equation of the reaction:Ca(OH)2(aq) + 2HCl (aq) CaCl2(s) + 2H2O(l)The aim of my experiment is to determine the concentration of a limewater solution which contains approximately 1g dm-3 of calcium hydroxide by using hydrochloric acid as a reagent in a titration.Safety ProceduresThe following safety procedures should be notified first to ensure the safety […]
The best way to determine the concentration of a solution is by a titration, and as limewater (Ca(OH)2(aq)) is a base an acid/base titration would be most useful:Ca(OH)2(aq) + 2HCl(aq) 2H2O(l) + CaCl2(l)Precautions to take: working with chemicals, e.g. corrosive hydrochloric acid, means goggles should be worn as well as an apron to protect clothes […]
Vitamin C is of vital significance in the metabolism of most organisms, however interestingly the primates including monkeys and man, guinea pigs and the Indian fruit bat are the only known higher species to be susceptible to the lack of the vitamin However micro-organisms do not form this chemical. In other words ascorbic acid is […]
One of the more common reactions seen in chemistry is the acid/base reaction. The most common result of an acid/base reaction is the formation of water and a salt. Such a reaction can be highly useful in the analysis of an unknown acid or base. By titrating the unknown analyte with a standard reagent, several […]
Honors Chemistry Titration Lab Write-up Introduction Titration Is a method, which Is meant to find the concentration of either an acid or a base by adding a measured amount of It to a known volume and concentration of an acid or Basel . Titration starts with a beaker or Erlenmeyer flask containing a very precise […]
An investigation into the total acid content of assorted brands of lemon and lime soft drink Abstract: The aim of this experiment was to determine the total levels of carbonic acid concentration in 3 differing brands of lemon and Lime soft drinks. Research Question: Does the acid content in three different lemon and lime flavored […]
Our results show that for the 1st and 2nd trial the volume of the base added are identical, but the solution’s color differs. A primary standard solution should: Be of high purity Remain unrelated in air while weighing and remain stable (no reaction or decomposition) during storage Have a high molar mass. The higher the […]
Abstracter is important substance for all living organisms. The physical and chemical properties of water play a central role in biological structure and function of the organism. The nomination ability of water to form H+ and OH- ions make it very unique. The hydrogen-ion concentration of biological system is usually preferred as the pH system, […]
There are four significant regions in titration curves: the initial point, pre-equivalence point, equivalence point, and post-equivalence point. Each region’s characteristics are related to the pH results obtained, and the points are named according to their position relative to the equivalence point. The equivalence point is where the solution becomes neutral, which is represented on […]
This project was done with the aid of a lot of people. I take this chance to express my gratitude to Mrs. . Handmaid Bit. Mad for the guidance and motivation that contributed tremendously to this project. My thanks and appreciations go to my friends in developing this project too. TITLE Analysis of Vitamin C […]
This graph indicates that as the time increases the concentration of sulfur dioxide in wine also increased. This opposed the hypothesis as it was predicted that as the time increased the concentration of sulfur dioxide in wine would decrease. Conclusion: The purpose of this experiment was to see how the concentration of sulfur dioxide as […]
Classic chemistry experiments Inaugurations in fats and oils Topic Organic chemistry, saturated and unsaturated fats. Timing 45 min. Description The students titrate different oils and fats mixed with Volatile against bromine water. Apparatus and equipment (per group) w White tile w Conical flask w Dropper pipette. (Use the type of teat pipette usually fitted to […]
Full Lab Report Experiment #2: Acid-Base Titration Lab Description: Acid-Base Titration Introduction In this lab exercise we will evaluate the effectiveness of several indicators for the determination of the point of completion of a specific acid-base naturalization reaction. We will also determine the unknown concentration of the strong base Noah by its reaction with a […]
In order to create the sodium hydroxide solution, its pellet-form was dissolved in deionized water. The concentration of ethanol varied in each trial, with 25 mol% and 35 mol% concentrations used in the reactor. In order to determine the rate constant, 10 ml samples were taken every 10 minutes for an hour during the reaction […]
The purpose of this experiment is to measure the concentration of a sulphuric acid solution, which ranges from 0.05 to 0.15mol/dm?. To achieve this, I will use an alkali with a known concentration to titrate the unidentified sulphuric acid solution. The indicator phenolphthalein will be used to indicate when the acid is neutralized. The necessary […]
Concentrated hydrochloric acid is roughly 11 M. Pour out into a measuring cylinder about 2 cm3 of concentrated hydrochloric acid. Transfer it to a 250 cm3 flask and make up to the mark with water. Shake well. Put some pure sodium hydrogen carbonate or anhydrous sodium carbonate into an evaporating dish and heat gently over […]
Calcium is a mineral which is essential to the human body. In fact 1. 5% of the human body is made up of calcium, and not just the obvious uses such as bone and teeth formation but it is also a vital factor in many enzyme reactions, for example blood clotting. It also partakes in […]
Introduction An acid-base titration is a method of neutralizing strong acids. Unbeknownst to many, acid-base titrations occur on a daily basis. Our stomachs use acid to help us digest our food – approximately . 155 hydrochloric acid (HCl) with a pH of 2-3. When too much of this acid is formed in the stomach, heartburn […]
To determine and analyze the moisture content of a given sample using the Karl Fischer volumetric titration technique, the following steps are taken. The Karl Fischer volumetric titration method detects the moisture content in samples by reacting the iodine present in the Karl Fischer reagent with water in a 1:1 mole ratio. The reaction can […]
Title: The Factors Affecting Enzyme Activity Speeds Problem: How do the factors of temperature, pH level, substrate concentration and enzyme concentration specifically and significantly alter the rate of enzymatic reactions? Background Information: Enzymes are critical to the function of human life. They are the controllers of all the chemical reactions within our bodies – they […]
Introduction: The purpose of this experiment is to measure the effects of changes in temperatures and pH on enzyme activity in skeletal muscle, particularly the activity of lactate dehydrogenase (LDH). LDH is a glycolytic enzyme which converts pyruvate to lactate in the following equation: LDH Pyruvate+ NADH ? ————? Lactate + NADThe reaction above can […]
Number Objective Rates of Reaction Define the term rate of reaction. Describe suitable experimental procedures for measuring rates of reactions. Analyze data from rate experiments. Students should be familiar with graphs of changes in concentration, volume and mass against time. Collision Theory Describe the kinetic theory in terms of the movement of particles whose average […]
