Free essays on chemistry are educational resources that allow individuals to learn more about the science of chemistry at no cost. These essays cover a wide range of topics, from basic concepts in chemistry to more complex scientific theories and experiments. They provide insights into the chemical properties of various elements and compounds, the history of chemistry and its contributions to society, and the latest developments in this field. By reading these essays, students can deepen their understanding of chemistry and gain valuable knowledge that can help them in their academic and professional pursuits.
Synthesis Of Banana Oil Mechanism
Esterification is used to derivatize carboxylic acids and other acidic functional groups. In a typical reaction, Esterification involves the condensation of the carboxyl group of an acid and the hydroxyl group of an alcohol, with the elimination of water (Konwar, 2008). Many Esterification reactions are slow and elevated temperatures are frequently used. Since the Esterification reaction is an equilibrium reaction, it may be necessary to remove the water generated during the reaction. The chemical industry uses esters for a variety…...
AlcoholChemical ReactionChemistryMaterials
Sinkage depth of the tire on the sand
This essay sample on Sinkage Depth provides all necessary basic info on this matter, including the most common "for and against" arguments. Below are the introduction, body and conclusion parts of this essay. The graph above shows the data that establishes the relationship between rolling resistance of the bicycle and the sinkage depth of the tire on the sand bed. The relationship is found to be linear and is the only linear relationship in the whole experiment . As the…...
ExperimentMechanical EngineeringPhysicsPressureWater
Specific Heat Experiment Lab Report
The following academic paper highlights the up-to-date issues and questions of Specific Heat Experiment Lab Report. This sample provides just some ideas on how this topic can be analyzed and discussed. To find out what fuel releases the most heat energy whereas the amount of fuel wasted is also accounted for; we could test a number of well-known fuels (provided by the school) and contemplate their bonding attributes and components which they are composed of (all fuels are compounds, so…...
ChemistryEnergyFirePhysics
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Ldh Purification Lab Report
This sample essay on Ldh Purification Lab Report provides important aspects of the issue and arguments for and against as well as the needed facts. Read on this essay's introduction, body paragraphs, and conclusion.OLD was purified from the ammonium sulfate precipitated protein mixture by affinity chromatography and its activity was studied by spectrophotometers determination of NADIA at 340 NM. From Pierce BCC assay of crude homogenate, initial protein concentration was shown to be 100 MGM/ml. The final protein concentration of…...
BiologyBiotechnologyChemistryChromatographyProtein
Research Paper About Malunggay Leaves
This essay sample essay on Research Paper About Malunggay Leaves offers an extensive list of facts and arguments related to it. The essay's introduction, body paragraphs and the conclusion are provided below.Electrical phenomena have been studied since antiquity, though advancement in theoretical apprehension remained slow until the seventeenth and 18th centuries. Even so, practical applications for electricity were few, and it would non be until the late 19th century that applied scientists were able to set it to industrial and…...
ChemistryElectricityElectrolysisMaterialsMoringa Oleifera
H2o2 Intermolecular Forces
This essay sample on H2o2 Intermolecular Forces provides all necessary basic info on this matter, including the most common "for and against" arguments. Below are the introduction, body and conclusion parts of this essay.Analyzing the effects of varying hydrogen peroxide (H2O2) concentrations on the volume of its drop Jonah Jemina IB Chemistry SL 11 Mr. Eastwood Analyzing the effects of varying hydrogen peroxide (H2O2) concentrations on the volume of its drop Jonah Jemina Introduction: Hydrogen peroxide is a clear and…...
ChemistryConcentrationExperimentHydrogenMaterialsWater
Essay On Guava Fruit In English
The sample essay on Essay On Guava Fruit In English deals with a framework of research-based facts, approaches and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on.The intestinal digestive enzymes alpha-glucosidase and alpha-amylase are plays a vital role in the carbohydrate digestion. One antidiabetic therapeutic approach reduces the post prandial glucose level in blood by the inhibition of alpha-glucosidase and alpha-amylase enzymes. These can be an important strategy in management of blood glucose.…...
ChemistryDiabetesEnzymeGlucoseSteroids
What Does All Flesh Is Grass Mean
The following academic paper highlights the up-to-date issues and questions of What Does All Flesh Is Grass Mean. This sample provides just some ideas on how this topic can be analyzed and discussed. “All flesh is grass” is a quote from the book of Kings in the bible. Initially it is difficult to see how this relates to biology. However it is possible to relate the two, especially when considering the relationship between flesh and grass, or plant and animal…...
BiologyBloodChemistryProtein
Essay On Petroleum And Oil Conservation
This sample essay on Essay On Petroleum And Oil Conservation reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.After fossil fuels are created and depleted, they cannot be replaced in our civilization. This extremely long process takes thousands of years and if we were to replenish the depleted fossil fuels it would take millions of years. 2) How are fossil fuels formed? How do environmental conditions determine what type Of fossil…...
ChemistryCommunicationConservationEnergyEnergy SourcesNatural Environment
Diffusion And Osmosis Lab Report
The essay sample on Diffusion And Osmosis Lab Report dwells on its problems, providing shortened but comprehensive overview of basic facts and arguments related to it. To read the essay, scroll down.We therefore concluded that only small molecules like glucose and iodine can permeate through the bag, starch is too large. Introduction This lab has several key objectives. First, to learn about diffusion and osmosis, and the different factors that affect the rate at which these processes take place. In…...
BiologyCell MembraneChemistryOsmosis
Compound Pendulum Experiment
This sample essay on Compound Pendulum Experiment reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Pendulum in different medium Rural Corselets Oasis Introduction An oscillating object is a mass that follows a pattern that causes the mass to return to its initial position after completing one complete oscillation in a constant certain amount of time. This experiment aims to show how the medium that a simple pendulum is traveling though affects…...
DensityEnergyExperimentPhysicsTimeWater
Assignment Of Global Warming
This sample essay on Assignment Of Global Warming provides important aspects of the issue and arguments for and against as well as the needed facts. Read on this essay's introduction, body paragraphs, and conclusion.The word Global Warming was first used by National Academy of Sciences in 1979 in a paper called The Charley Report, which wrote: “If there is a continuous increase in the amount of carbon dioxide in the atmosphere, there’ll be no reason to doubt that climate changes…...
Carbon DioxideClimateClimate ChangeGlobal WarmingGreenhouse GasHistory
Enzyme Kinetics Lab Report
This essay sample essay on Enzyme Kinetics Lab Report offers an extensive list of facts and arguments related to it. The essay's introduction, body paragraphs and the conclusion are provided below.Analyzing absorbency of the solutions with spectrophotometers will determine the reaction rate. To test the optimal pH, the starch and a buffer were combined at a specific pH level and tested the absorbency of a solution at various times. To resolve the reaction rate of a solution at various temperatures,…...
ChangeChemical ReactionChemistryEnzymePh
Why Is It Possible To Analyze The Silver Content
This sample essay on Why Is It Possible To Analyze The Silver Content reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Analysis of Silver in an Alloy Introduction In this experiment an alloy of silver will be analyzed to determine its silver content. The silver-copper alloy will be dissolved in nitric acid, the silver will be precipitated as silver chloride, and the silver chloride will be filtered, washed, dried and its…...
Chemical ReactionChemistryCopperMaterialsSodiumWater
Hydrolysis Of Starch Lab Report
The folllowing sample essay on Hydrolysis Of Starch Lab Report discusses it in detail, offering basic facts and pros and cons associated with it. To read the essay's introduction, body and conclusion, scroll down.Enzymes are a class of proteins that catalyse chemical reactions, which increases the rate of a metabolic reaction. Most enzymes are specific, working on a particular or class of reactions. In this case I am using an enzyme known as amylase (a group of enzymes which convert…...
Materials
Stanford Prison Experiment Research Paper
This essay sample essay on Stanford Prison Experiment Research Paper offers an extensive list of facts and arguments related to it. The essay's introduction, body paragraphs and the conclusion are provided below.The prison Experiment conducted at Stanford University in 1971 was intended to find out what would happen if average innocent people were placed in a prison environment on both sides (inmate and guard). The experiment began with a newspaper add asking for male college aged volunteers to participate in…...
ExperimentHuman NaturePrisonStanford Prison Experiment
Thickness and Stretch of the Rubber Band
This sample paper on Does The Thickness Of A Rubber Band Affect How Far It Stretches offers a framework of relevant facts based on the recent research in the field. Read the introductory part, body and conclusion of the paper below. The aim of this experiment is to see how changing the distance an elastic band is stretched will effect how far a tub is catapulted down a runway.PlanIn our experiment we plan to test how far we can catapult…...
ExperimentForceFrictionGravityPhysicsPlastic
The Copper Cycle Lab Report
The sample essay on The Copper Cycle Lab Report deals with a framework of research-based facts, approaches and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on.In conclusion my percent recovery of copper was 100% due to the adequate amounts of solutions and achievement of proper chemical reactions. Equipment and Materials: Copper Metal (penny) Nitric Acid (HON..)(aqua) Sodium Hydroxide (Noah)(aqua) sulfuric ACid Ammonium Hydroxide (NH)(aqua) Hydrochloric Acid (HCI)(aqua) Zinc powder 2 100 ml Beakers…...
Chemical ReactionChemistryCopperMaterialsSodiumWater
Structural Design Of Building
This sample essay on Structural Design Of Building provides important aspects of the issue and arguments for and against as well as the needed facts. Read on this essay's introduction, body paragraphs, and conclusion.There are 7 different forms of structural design used to form multi-storey buildings within the building industry today, They are:- •Shear wall structures •Hull core structures •Propped structures •Suspended structures •Traditional framed/caged structures •Cantilevered structures •Braced structures The two that are popular and most widely used are…...
ArchitectureBuildingCivil EngineeringConstructionManufacturingMaterials
Surface Area Investigation
The sample paper on Surface Area Investigation familiarizes the reader with the topic-related facts, theories and approaches. Scroll down to read the entire paper.There are many factors that determine how quickly or slowly heat is lost. Some of the factors are as follows: amount of water, shape, temperature and surface area to volume ratio. The aim of this investigation is to examine how variations in surface and volume ratios in organisms lead to variations in heat loss.In theory a larger…...
ExperimentHeatPhysicsThermodynamicsWater
Facts and Arguments of Experiments With Enzymes
The sample essay on Enzyme Experiments deals with a framework of research-based facts, approaches and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on. Enzymes are catalysts in the body that speed up the breakdown of food, and are essential in the digestive system. Although food can be broken down by molecules colliding with it, the process is speeded up greatly by enzymes, a type of catalyst. We know from previous knowledge that enzymes…...
Chemical ReactionChemistryEnzyme
The On Toothpickase Lab
The following sample essay on The on Toothpickase Lab deals with a framework of research-based facts, approaches and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on. As time went on and towards the end of the two minutes the rate started to stay the same. The trend between the Control and the Trail 2- Enzyme Mutation (Tied Fingers) graph is that Trail 2 produced fewer reactions, averaging at 1 toothpick per 10 second,…...
ChangeChemical ReactionChemistryEnzyme
Concentration And Rate Of Reaction
The essay sample on Concentration And Rate Of Reaction dwells on its problems, providing shortened but comprehensive overview of basic facts and arguments related to it. To read the essay, scroll down.I am investigating the effect of the concentration of Hydrochloric Acid on the speed of the reaction between Sodium Thiosulphate and Hydrochloric Acid. When these react together, sulphur is formed. A balanced chemical equation for the reaction is… Na2S2O3 + 2HCl –> S + 2NaCl + SO2 + H20…...
Chemical ReactionChemistryExperimentPhysicsWater
H2O2 MnO2: Exploring Key Arguments
This sample essay on H2o2 Mno2 reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Chemistry Catalyst Report Aim I am trying to investigate the effect of the mass of magnesium dioxide used on the speed of the reaction of 2H2O2(aq) ? 2H2O(l) + O2(g). I hypothesize that the speed of the reaction is proportional to the rate of decomposition. Independent Variable The mass of MnO2 used Dependent Variable The rate of…...
ChemistryEnergyExperimentMaterialsPhysics
Water Rocket Experiment Report
The sample paper on Water Rocket Experiment Report familiarizes the reader with the topic-related facts, theories and approaches. Scroll down to read the entire paper.We will measure the ranges,maximum altitudes and air time in order to have a better understanding of the projectile motion-As the practical situation which includes the air resistance and different kinds of errors caused by students’ carelessness s different from the theory,it is unavoidable that the results are quite different from the theoretic statistics. The horizontal…...
ExperimentMotionNaturePhysicsRocketTime
Parachute Experiment
This sample essay on Parachute Experiment reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.We are going to investigate the effect that different weights have on my parachute. We are going to construct a parachute and drop it from an unchanged height with different weights attached to it and record the results.To make my experiment, my parachute will be constructed from a black bin liner which will be 70cm x 80cm…...
ExperimentForceGravityPhysics
Tensile Testing Laboratories
This sample essay on Tensile Testing Laboratories reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Introduction The construction materials course is an essential part of civil engineering as the strength of all structures and constructions depends on the material used. The tension test is one of the laboratories which help students develop their knowledge in this course by practice. During the laboratory a Tinnitus Olsen Tension Test equipment was used, and…...
ChemistryCivil EngineeringMaterialsMechanical EngineeringPhysics
Systematic Errors In Potato Osmosis Experiment
The folllowing sample essay on Systematic Errors In Potato Osmosis Experiment discusses it in detail, offering basic facts and pros and cons associated with it. To read the essay's introduction, body and conclusion, scroll down.It may also be used to describe a physical process in which any solvent moves across a comparable membrane (permeable to the solvent, but not the solute) separating two solutions of different concentrations. Osmosis can be made to do work. The osmotic pressure is defined to…...
BiologyChemistryOsmosisPhysicsStem Cells
Effect Of Salinity On Daphnia Heart Rate
The following academic paper highlights the up-to-date issues and questions of Effect Of Salinity On Daphnia Heart Rate. This sample provides just some ideas on how this topic can be analyzed and discussed. This is why Daphnia is often used in experiments dealing with heart rate. Daphnia inhibits regions Of fresh water. They will not survive very long in distilled water or tap water. The reason why they would not survive long in tap water is the amount of chlorine.…...
ChemistryHeartMaterialsReasonSaltWater
How To Get Into Medical Esthetics
This sample essay on How To Get Into Medical Esthetics reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Medical esthetics is an evolving field in the therapeutic and medical sphere. It specializes in the use of advanced cosmetic lasers and other treatments to treat a full spectrum of both cosmetic and medical conditions that range from vascular and pigmented skin imperfections, hair removal, skin rejuvenation, and collagen regeneration, to more physically…...
AestheticsCosmetologyEnvironmental ChemistryHealth CareMedicine
Efficient Way to Separate Sample Components With Different Densities
The following sample essay on efficient way to separate sample components with different densitiesю This Laboratory Centrifuge provides important aspects of the issue and arguments for and against as well as the needed facts. Read on this essay's introduction, body paragraphs, and conclusion. The research lab extractor is one of the most of import instruments available today for sample readying. It is widely used and considered to be the most efficient manner to separate constituents of a sample with different…...
Chemistry
Synthesis Of 7 7-dichlorobicyclo 4.1.0 Heptane
This sample essay on Synthesis Of 7 7-dichlorobicyclo 4.1.0 Heptane reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Abstract The preparation of 7. 7-dichlorobicyclo [4. 1. 0]heptane which is also known as 7,7-dichloronorcarane was done by reacting cyclohexene , chloroform and a base( 50% aqueous sodium hydroxide) with benzyl triethylammonium chloride. The latter being a water soluble phase transfer catalyst (PTC). reaction was performed at room temperature and was distilled at…...
Chemical ReactionChemistryMaterialsSodiumWater
Heat Capacity Ratio Of Gases
The folllowing sample essay on Heat Capacity Ratio Of Gases discusses it in detail, offering basic facts and pros and cons associated with it. To read the essay's introduction, body and conclusion, scroll down.Heat Capacity Ratios for Gases Research Report Abstract The values for heat capacity ratio and the molar heat capacity for this experiment at a constant temperature were obtained using the kundt tube. The values for CO2, N2 and AR recorded here display the figures obtained from the…...
ChemistryHeatMechanical EngineeringPhysicsSound
How Long Does It Take For Amylase To Break Down Starch
The sample essay on How Long Does It Take For Amylase To Break Down Starch deals with a framework of research-based facts, approaches and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on.I am investigating the time needed for enzymes at different temperatures to digest starch. Enzymes are small protein molecules made in the pancreas and stored in the stomach. They are a biological catalyst that means they increase the rate of reaction in…...
Chemical ReactionChemistryEnergy
Air Pollution Reasons And Solutions
The folllowing sample essay on Air Pollution Reasons And Solutions discusses it in detail, offering basic facts and pros and cons associated with it. To read the essay's introduction, body and conclusion, scroll down.A physical, biological or chemical alteration to the air in the atmosphere can be termed as pollution, It occurs when any harmful gases, dust, smoke enters into the atmosphere and makes it difficult for plants, animals and humans to survive as the air becomes dirty Air pollution…...
Air PollutionChemistryMaterialsNatural EnvironmentOzone LayerPollution
Cellulose And Hemicellulose
The following sample essay on Cellulose And Hemicellulose deals with a framework of research-based facts, approaches and arguments concerning this theme. To see the essay's introduction, body paragraphs and conclusion, read on. When A.niger has been starved for 6 hours, CreA repression is alleviated and it releases a subset of scouting enzymes to find a carbon source to breakdown. From six to nine hours, the scouting enzymes (or degradative enzymes) look out for complex polysaccharides which will release inducing sugars…...
Materials
The Approach of Krishna: C. 1600-1670
IntroductionThe Approach of Krishna C. 1600- 1670 was a 17th-century painting from Pahari, India that uses Basholi style. My first thought of the art is a love scene in which a smitten Krishna is meeting up with his lover, who is eagerly awaiting him. The image depicts a blue-colored and elegantly-dressed Krishna, with elegant peacock feathers on his head. He seems to be holding a rose flower, which he is presumably taking to his lover, who is awaiting him in…...
ColorLight
Compare and contrast how Patrick Suskinds Perfume and
Compare and contrast how Patrick Suskinds Perfume and Alfred Hitchcocks Psycho explore how the manifestation of evil due to ones self-interests provokes the audience to explore their own moral compass.Patrick Suskinds 1985 novel Perfume and Alfred Hitchcocks 1960 film Psycho takes the audience on a journey that provokes ones moral compass when using sympathy as a means of manipulation. Suskind's historical fantasy follows Jean-Baptise Grenoullie, a man obsessed with olfactory sensations, and Hitchcock's Slasher, Norman Bates, a hotel owner with…...
ContrastHuman NatureLoveProtagonist
The Choice of A Profession Essay
Chemistry is the science that interests me and the science that I feel the most efficient doing so I thought, to have a career that incorporates science and helping others would be the most appropriate for me. I quite enjoy exploring new things in the scientific world and if I had a degree that would allow me to do that in a daily basis then I wouldn't feel bored with my work. The skills that I have acquired from studying…...
ChemistryCommunicationHobbyHuman NatureInterestsLife
Why Use Vacuum Filtration
This sample of an academic paper on Why Use Vacuum Filtration reveals arguments and important aspects of this topic. Read this essay's introduction, body paragraphs and the conclusion below.Method: Collect all the equipment, using a measuring balance weigh out 5. 0g of 2-hydrobenzoic acid in a conical flask. Then add 7cm3 of ethanoic acid anhydride and also add three drops of concentrated sulphuric acid. At the top of the conical flask fit the air condenser and mix together the reagents…...
ChemistryMaterialsWater
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