Chemistry Essays Examples For College & High School Students in PDF

1489 total results

An Essay on Animal Experimentation Without Conducting Research (606 words, 1 pages)

Sara E Shaji May 03, 1999English Comp I Dr. Pat BryneFinal Essay Animal Experimentation WITHOUT ANIMAL RESEARCH Animal experimentation is perhaps the major means by which the sum of human knowledge has been expanded. However, although many people have benefited from the medicines and surgical techniques produced by this research, ... Read More

Characteristics and the Importance of the Element of Sodium (326 words, 1 pages)

Sodium Sodium Sodium is an element found in the forest in its natural form. The atomic has and atomic number is 11 so it means it has 11 protons and 11 electrons. The Elements can be used in many formulas to make a compound. Its atomic number is 22.989770.The elements ... Read More

A Study of Reaction Enthalpies and Hess’ Law (635 words, 2 pages)

Lab - Reaction Enthalpies and Hess Law Reaction Enthalpies and Hess LawIntroductionThis lab will show us how to first determine enthalpy using a simple calorimeter then apply Hess law to determine the change in enthalpy for a third reaction.DataPart1 The Heat Capacity of the CalorimeterCcal 135kJ (Very off, so we ... Read More

A Lab Analysis of Water (501 words, 2 pages)

Lab - Analysis of Water Analysis of WaterIntroductionThis lab will teach us how to identify several different substances that may be present in tap water and ocean water using different chemical tests. It will also show us the presence of solids in both tap water and ocean water.img88464c657dhttpwww.collegepimp.comecheatlab3.gifimg88464c657dBalanced Equations9.Test Tube ... Read More

An Experiment on Alkaline Phosphatase’s Rates of Reaction With P-Nitrophenol Phosphate (1042 words, 3 pages)

The purpose of this experiment is to measure the rates of reaction of the enzyme Alkaline Phosphatase with the substrate p-nitrophenol phosphate under varying conditions. The concentration of both substrate and enzyme were diluted and the inhibitor vanadate was utilized to determine whether or not the reaction is substrate or ... Read More

An Overview of the Chemical Element Helium (6986 words, 12 pages)

HeliumHelium is a chemical element with symbol He and atomic number 2. It is a colorless, odorless, tasteless, non-toxic, inert, monatomic gas that heads the noble gas group in the periodic table. Its boiling and melting points are the lowest among the elements and it exists only as a gas ... Read More

The Unexplained Phenomenon of Extrasensory Perception (986 words, 3 pages)

Extrasensory Perception - Supernatural Power? Extrasensory Perception - Supernatural Power?Extrasensory perception or ESP is the knowledge of external objects or events without using our five basic senses. People that believe that they have a kind of ESP are people such as psychics or spiritualists that believe they can communicate with ... Read More

An Argument Against the Implementation of Animal Experimentation (1682 words, 4 pages)

Essay Against Animal Experimentation Against Animal Experimentation Imagine having a headache and not having aspirin to take, or being diabetic and not being able to take certain types of insulin (Williams 3). It seems impossible that these drugs could be unavailable to humans, but they would not be attainable had ... Read More

A Lab Experiment to Demonstrate El Nino Effect Trade Winds and Upwelling (561 words, 2 pages)

El Nio Model LabTitle El Nio Model LabPurpose Hands on demonstration of the El Nino effect, trade winds, and upwelling.MaterialsClear plastic oblong container (approx. 18x4x4, smaller will work, food containers are ideal),Water,Mineral oil,Blue food coloring,Hair dryer(Red Oil-based Paint optional)Paper sheet map showing the Pacific OceanProceduresFill the tray with water to ... Read More

A Lab Experiment on Cricket Deterrents (1024 words, 4 pages)

Cricket Deterrents Lab Experiment Science ProjectCricket deterrents lab experiment, science projectInsects have been a nuisance to man since the beginning of time, up until the present. One of the plagues that struck Egypt was swarms of crickets, and locusts, which destroyed crops, and ate entire fields. Swarms of Crickets can ... Read More

An Essay on Chemical Reactions (368 words, 2 pages)

Chemical Reactions Types of Chemical reactionsLots of reactions take place around us in everyday life. Reactions are quit important in chemistry and in science generally. Chemical reaction is the changing of substances to other substances by the breaking of bonds in reactants and the formation of new bonds in products.There ... Read More

An Overview of an Experiment on the Rate of Conversion of Hydrogen Peroxide Using Catalase (759 words, 2 pages)

Purpose - The purpose of this lab is to use a chemical titration to measure and them calculate the rate of conversion of hydrogen peroxide (H2O2) to water and oxygen gas using the enzyme catalase.Hypothesis - The rate of enzymatically-catalyzed reactions can be determined by taking time reactions at different ... Read More

The Proper Crime Scene Techniques (3232 words, 9 pages)

Forensic Science Proper Crime Scene Techniques. The word "Forensic" is derived from the Latin forensus, meaning "of theforum."1 In ancient Rome, the forum was where governmental debates wereheld, but it was also where trials were held -- the court house. From that, forensicscience has come to mean the application of ... Read More

The Characteristics of Combinatorial Chemistry and the New Drugs (786 words, 2 pages)

Combinatorial ChemistryAnd New Drugs The body fights disease by generating antibodies that bind to invading organisms. The body can make different antibodies by shuffling and reshuffling their constituent parts, but it can't make a special antibody each time it is faced with a new pathogen. So it uses only the ... Read More

An Overview of an Experiment for the Determination of the Coliform Bacteria (488 words, 2 pages)

Coliform Bacteria Coliform bacteria are good indicator organisms for the presence of pathogenicbacteria due to their realtionship with these pathogenic bacteria, theirrelative ease of determination by simple methods, and by their occurrence inlarge quantities in human feces. The MPN method used in this experiment is oneof the prescribed techniques for ... Read More

A Chemical Experiments to Classify the Reactions and Write Balanced Equations (418 words, 1 pages)

Chemical Reaction Sample I Purpose Observe chemical reactions and ID reactants and products of thereactions. Classify the reactions and write balanced Equations. II TheoreticalBackground A chemical reaction is a what happens to components that causes aphysical change. III Hypothesis You can determine a chemical rxn by thephysical change that takes ... Read More

An Overview of the Experiment on the Charles Law Explaining the Relationship Between the Temperature and Volume of a Gas (766 words, 3 pages)

Charles Law Introduction One of the variables that affects the volume of a gas is thetemperature of the gas and its surroundings. This volume-temperaturerelationship is quantified in Charles's law. The law states that as thetemperature of a gas decreases, the volume of the gas decreases proportionately.An ideal gas at 273 ... Read More

An Experiment to Determine Simple and Complex Carbohydrates (802 words, 1 pages)

Carbohydrates are present in sugars, starch, acids, and in many other nutrients that consist elements of carbon, hydrogen, and oxygen. Having a ratio of 1 2 1 or written as CH20. A monosaccharide meaning monomer of sugar is a simple carbohydrate. Containing backbone of five carbon atoms that are present ... Read More

A Look at the Calorimeter (1121 words, 3 pages)

CalorimeterIntroductionA team was sent to the chemical manufacturing division of a small chemical company to help the technicians with experiments. Since the notes written by the technicians were inaccurate and unfinished, all of the experiments they had preformed needed to redone and documented correctly. The head of the company gave ... Read More

A Study of Buoyancy and Displacement (710 words, 2 pages)

Bouyancy And DisplacementBuoyancy and DisplacementShips do not sink because of displacement the ship moves more water than the ship actually weighs.Archimedes Principle Any object wholly or partly immersed in a fluid is buoyed up by a force equal to the weight of the fluid displaced by the object.Density is mass ... Read More

The Preparation of Organic Compounds, Aspirins and Oil of Wintergreen (379 words, 2 pages)

The Preparation Of Organic Compounds Aspirins And Oil Of WintergreenTitle of Experiment The Preparation of Organic Compounds Aspirins and Oil of WintergreenIntroductionThe purpose of this experiment is to prepare two organic compounds (aspirin and oil of wintergreen) and to illustrate the typical organic reactions. Students will also learn some techniques ... Read More

An Experiment to Determine the Effects of Music on Radish Growth (497 words, 2 pages)

Science Period 1Radishes Respond to music Phillip Chiu, Period 1 Introduction The question I will be addressing is "Does music affect radish growth?" This seemed like a good idea to research and experiment on because I wanted to know if a plant could really "hear" or if vibrations through the ... Read More

A Better Understanding of the Phenomenon of Quasars and Active Galaxies (1273 words, 2 pages)

Quasars And Active GalaxiesAmy A. ZeleznikPeter AndersonGSC 15811 November 1999Quasars and Active GalaxiesThe astronomical world is full of phenomena beyond the average persons imagination. The technical tools and analytical methods astronomers use are very complex. The enormous numbers and distances are mind boggling. Theories behind astronomical phenomena are based on ... Read More

A Lab Experiment to Yield Isomyl Acetate from the Reaction of Acetic Acid and Isomyl Alcohol (1089 words, 3 pages)

Purpose The purpose of this lab is to yield isoamyl acetate, a banana fragrance, by reacting acetic acid and isoamyl alcohol. By reacting a carboxylic acid with an alcohol we synthesize an ester, in this case isoamyl acetate. Procedure 1) Obtain 8.5 mL of isoamyl alcohol and 15.0 mL of ... Read More

Facts and Information About the Chemical Element of Phosphorus (957 words, 3 pages)

Phosphorus The element that is featured in this report is phosphorus. Phosphorus is achemical element that human beings, animals, and plants need for normal growth.The main use of phosphorus is fertilizer. It was difficult to find a lot ofdifferent information on this element. Description Phosphorus is a nonmetallicchemical element that ... Read More

The Primary and Secondary Phosphates in Water Pollution (869 words, 3 pages)

Phosphates in Water PollutionPhosphates may be created by substituting some or all of the hydrogen of a phosphoric acid by metals. Depending on the number of hydrogen atoms that are replaced, the resulting compound is described as a primary, secondary or tertiary phosphate. Primary and secondary phosphates contain hydrogen and ... Read More

The Elements That Are Important to a Mother-Child Bond (2360 words, 7 pages)

ParentChild Bonding Thesis Bonding does not refer to mutual affection between a baby and an adult,but to the phenomenon whereby adults become committed by a one-way flow ofconcern and affection to children for whom they have cared during the firstmonths and years of life. I. The importance of bonding or ... Read More

An Essay on the Element Radon (2146 words, 7 pages)

In this paper I will discuss the element called . I willexplain how and when this element was discovered, its' physicalcharacteristics, the natural environment of the element and the abundancein which it occurs. In addition, I will describe why is important tohumans, and other interesting facts related to this element. ... Read More

A Study of the Element, Platinum (639 words, 2 pages)

, symbol Pt, is a relatively rare, chemically inert metallicelement that is more expensive than gold. The atomic number of is78. is one of the transition elements in group 10 of the periodictable. is the most important of the group of elements called the metals, also included in this group ... Read More

An Experiment to See How Light Affects the Rate of Photosynthesis (1847 words, 4 pages)

Problem ?The PlanIn my experiment I am going to see how light affects the rate of photosynthesis. To do this experiment I am going to set up the apparatus as shown in figure 1.The apparatus I am going to use are the following -1 Tripod1 300ml Beaker1 Boiling Tube1 Clamp ... Read More

Chemistry Essay Examples