Customer center

We are a boutique essay service, not a mass production custom writing factory. Let us create a perfect paper for you today!

Free research essays on topics related to: molecules

215 results found, view free essays on page:

  • A Thermodynamic Reading Of The Crying Lot 49
    1,979 words
    A Thermodynamic Reading of The Crying of Lot 49 Exploring thermodynamic entropy and information theory clarifies the ambiguous relationship between Oedipa Maas, Maxwell's Demon and the Tristero System in The Crying of Lot 49. Through a convoluted, chaotic adventure leading to disorder, Oedipa searches for the truth about Tristero, hoping it will save her from her tower of imprisonment (Pynchon, 11). Pynchon dangles this elusive message over Oedipa's head until she discovers Tristero's meaning. H...
    Free research essays on topics related to: entropy, second law of thermodynamics, pynchon, crying of lot 49, mechanical energy
  • Electromagnetic Radiation Infrared Radiation
    1,377 words
    You might remember the heroic role that newly-invented radar played in the Second World War. People hailed it then as "Our Miracle Ally." But even in its earliest years, as it was helping win the war, radar proved to be more than an expert enemy locator. Radar technicians, doodling away in their idle moments, found that they could focus a radar beam on a marshmallow and toast it. They also popped popcorn with it. Such was the beginning of microwave cooking. The very same energy that warned the B...
    Free research essays on topics related to: water molecules, outer layer, infrared radiation, electromagnetic radiation, radio waves
  • Johannes Van Der Waals
    1,302 words
    Johannes Diderik van der Waals was born on November 23, 1837 in Leyden, located in The Netherlands. His parents were Jacobus van der Waals, a carpenter and Elisabeth van den Burg. Without having much money to start with, van der Waals had to work his way up the latter. After completing his elementary education in Leyden, he became a schoolteacher. Having no prior knowledge of classical languages, and being exempt from taking academic examinations, he continued studying at Leyden University in hi...
    Free research essays on topics related to: one end, van der, royal academy, van den, academy of sciences
  • The Effect Of Temperature On Air Pressure
    1,303 words
    DESCRIPTION: My project consists of a series experiments to determine the effect of air pressure in a given environment at various temperatures. The experiments I chose to conduct are: 1) Heat an ordinary pop can on a hot plate and then putting the can upside down in cold water to see the effect of a fast change in temperature. 2) Partially full milk jug with hot water, put the cap on tightly, and let it sit for one hour to see the effect of a slow change in temperature. 3) Setting a small piece...
    Free research essays on topics related to: air pressure, science fair, hot water, hard boiled, room temperature
  • 2 H 2 O Carbon Monoxide
    1,607 words
    1. State the five assumptions of the Kinetic-Molecular Theory of gases. a) Gases consist of large numbers of tiny particles. These particles, usually molecules or atoms, typically occupy a volume about 1000 times larger than occupied by the same number of particles in the liquid or solid state. Thus molecules of gases are much further apart than those of liquids or solids. Most of the volume occupied by a gas is empty space. This accounts for the lower density of gases compared to liquids and so...
    Free research essays on topics related to: 2 h 2 o, carbon dioxide, kinetic energy, hydrogen peroxide, carbon monoxide
  • Concentration And Reaction Rate
    1,776 words
    ter> How concentration affects reaction rate. The aim of this investigation is to see how the concentration of a reactant in ratio to the reactor affects the rate of a reaction. When hydrochloric acid and Thiosulphate react together sulphur is liberated this means that as the reaction goes on the solution will become yellow and will change from being transparent to translucent to opaque. The sulphur is formed as a solid but not in the usual precipitation way. Na 2 + S 2 + 2 HCL 2 NaCl+...
    Free research essays on topics related to: reaction rate, activation energy, hydrogen peroxide, rate of reaction, measuring cylinder
  • Td Tr Tr Td White Blood Cells
    3,530 words
    INTRODUCTION There is no doubt that AIDS is indeed the epidemic of the decade. Not only are there many supporting facts and data, visiting urban cities and third world countries prove this point. Furthermore, AIDS is not only highly infectious, it is also the first major incurable epidemic throughout this biomedical revolution that mankind is going through. This epidemic might actually be the one that will completely wipeout the third world. Scientists, government agencies and pharmaceutical com...
    Free research essays on topics related to: td td, white blood cells, lymph nodes, hiv infected, td tr tr td
  • Life On Earth H 2 O
    726 words
    The first thing water reminds us of is the clear liquid in our water bottles. However, water is more than a normal substance. Water is the beginning and the continual of life on earth. Because of its many unique properties, water was able to start life on our planet. The simple structure of H 2 O is the source of all water's properties. With two hydrogen atoms sticking to an oxygen atom in a tetrahedron shape, water is considered as a polar molecule. Because oxygen is very electronegative, it pu...
    Free research essays on topics related to: life on earth, hydrogen bonds, hydrogen bonding, h 2 o, hydrogen atoms
  • H 2 O 2 O 2
    828 words
    Purpose - The purpose of this lab is to use a chemical titration to measure and them calculate the rate of conversion of hydrogen peroxide (H 2 O 2) 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 time intervals. When the rates are plotted on a graph, the rate of the reaction is the slope of the linear portion of the curve. To determine a rate, any two points on the straight-line...
    Free research essays on topics related to: hydrogen peroxide, reaction rate, 2 o 2, h 2 o, test tube
  • Permeable Membrane Semi Permeable
    781 words
    Osmosis is the flow of water through a semi permeable membrane that blocks the transport of salts or other solutes through it. It is also defined as the net movement of water from an area of high concentration to a region of low concentration. Osmosis is a fundamental effect in all biological systems. When two water volumes are separated by a semi permeable membrane water will flow from the side of low solute concentration to the side of high solute concentration. If external pressure is applied...
    Free research essays on topics related to: permeable membrane, semi permeable, plant cell, active transport, temperature increases
  • Carbon Dioxide And Water Organic Compounds
    1,157 words
    I. Introduction A. The Carbon Carbon I. Introduction A. The History of Carbon II. Occurrences in Nature A. Diamond B. Graphite C. Coal and Charcoal D. Amorphous Carbon III. Carbon Compounds A. Inorganic B. Organic IV. The Carbon Cycle V. Conclusion Carbon, an element discovered before history itself, is one of the most abundant elements in the universe. It can be found in the sun, the stars, comets, and the atmospheres of most planets. There are close to ten million known carbon compounds, many ...
    Free research essays on topics related to: carbon cycle, organic compounds, living organism, chemical processes, carbon dioxide and water
  • White Blood Cells Defense Mechanisms
    1,177 words
    Evolution of Immunity and the Invertebrates Article Summery Name: Immunity and the Invertebrates Periodical: Scientific American Nov, 1996 Author: Gregory Beck and Gail S. Habitat Pages: 60 71 Total Pages Read: 9 The complex immune systems of humans and other mammals evolved over quite a long time in some rather surprising ways. In 1982 a Russian zoologist named Elie Metchnikoff noticed a unique property of starfish larva. When he inserted a foreign object through its membrane, tiny cells would ...
    Free research essays on topics related to: immunity, cells called, defense mechanisms, white blood cells, immune systems
  • Degrees Celsius Mothers Womb
    2,134 words
    As we enter a new millennium we are also making vast technological improvements. In the field of medicine in particular, there is cause for great optimism. There has never been more power to restore, maintain and extend health. However there is something even bigger approaching, cryonics. Many people think of cryonics as some futuristic, science fiction process that would only be possible in the movies. However the idea of cryonics isn t really that unreal. There are many groups and scientists w...
    Free research essays on topics related to: liquid nitrogen, vital signs, degrees celsius, mothers womb, brain waves
  • Test Tube Aluminum Foil
    2,055 words
    Osmosis Lab Purpose The purpose of this lab is to determine the concentration of solutes inside of a potato s cell. We also want to know the composition of potato water and stuff. Also the scientific Phenomenon studied of diffusion/ Osmosis. Diffusion is the movement of molecules from an area of higher concentration to an area of lower concentration. Osmosis is process by which water molecules diffuse across a cell membrane from an area of higher concentration to an area of lower concentration. ...
    Free research essays on topics related to: test tube, low concentration, cell membrane, percent change, aluminum foil
  • Surface Of The Water Hydrogen Bonds
    984 words
    Water is the most important substance in our evolution and our daily lives. Without water, life as we know it would not have been possible. This essay will examine the water molecule in order to ascertain how it brought about Earths thriving ecosystem and how important it is to us today. Each water molecule consists of one oxygen atom and two hydrogen atoms. The oxygen atom (or the apex of the water molecule) bears a slight electronegative charge while hydrogen possesses a more positive one 1 (f...
    Free research essays on topics related to: surface of the water, hydrogen atoms, hydrogen bonds, water molecules, oxygen atom
  • Rate Of Reaction Amino Acids
    1,401 words
    Enzymes? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? ? The majority of the reactions that occur in living organisms are enzyme-controlled. Without them, the rate of the reactions would be so slow as to cause serious, if not fatal, damage. Without enzymes toxins would soon build up and the supply of respiratory substrate would decrease. ? Enzymes are proteins and thus have a specific shape. They are therefore specific in the reactions that they catalyst? one enzyme will react with molecules...
    Free research essays on topics related to: amino acids, activation energy, optimum temperature, rate of reaction, active site
  • Carbon Dioxide And Water H 2 O
    640 words
    This paper is on the processes of fermentation, cellular respiration, photosynthesis, diffusion, osmosis, and enzyme activity. What do these six processes have in common? Fermentation is a chemical process that breaks down organic materials. This process is carried out by such microbes as bacteria, molds, and yeasts. For example, molds or fungi act upon mixtures of molasses and mineral salts to produce penicillin. Yeast breaks down sugar gotten from malted grain into ethyl alcohol and carbon dio...
    Free research essays on topics related to: carbon dioxide and water, green plants, chemical reactions, h 2 o, living things
  • Carbon Atom Molecular Formula
    2,405 words
    3. 2 Lots of carbon compounds seem to be isomers. What is an isomer? In organic chemistry, there are many examples of different compounds which have the same molecular formula as each other, but different arrangements of the atoms in their molecules, (different structural formulae). These compounds are said to be isomers of one another. Isomerism also occurs in inorganic chemistry, but it is less common. There are two types of isomerism common in organic chemistry: structural isomerism and stere...
    Free research essays on topics related to: molecular formula, organic chemistry, carbon atom, chemical properties, molecular weight
  • Rhodamine Conjugated Phalloidin Fetal Intestinal Epithelial Cells
    2,822 words
    Permeability of Hydrophilic Supervisors: Vladan Milovic Professor Per Artursson SUMMARY Investigations of the integrity and transport characteristics of 2 / 4 /A 1 cells have been done in this report. The cell line was isolated from rat fetal intestinal epithelial cells and transfected with thermolabile SV 40 large T antigen. These cells proliferated at 33? C, but eliminated the antigen and ceased proliferating at a non-permissive temperature (39? C). At 39? C 2 / 4 /A 1 cells started to differe...
    Free research essays on topics related to: tight, epithelial cells, intestinal, cellular, transport
  • Sodium Chloride Permeable Membrane
    2,568 words
    Scenario Plants in the soil have their roots in a dilute solution of mineral ions. When they are suddenly flooded with seawater, concentration of which is 0. 3 molar Sodium Chloride, they are observed to wilt and become flaccid. Aim The aim of this experiment is to investigate the movement of water into and out of plant cells by osmosis. The cells chosen for study will be taken from potato tubers as they provide a ready supply of uniform material. Background Information Any substance dissolved i...
    Free research essays on topics related to: permeable membrane, independent variable, water molecules, measuring cylinder, sodium chloride

215 results found, view free essays on page:

Writing service prices per page

  • $18.85 - in 14 days
  • $19.95 - in 3 days
  • $23.95 - within 48 hours
  • $26.95 - within 24 hours
  • $29.95 - within 12 hours
  • $34.95 - within 6 hours
  • $39.95 - within 3 hours
  • Calculate total price

Our guarantee

  • 100% money back guarantee
  • plagiarism-free authentic works
  • completely confidential service
  • timely revisions until completely satisfied
  • 24/7 customer support
  • payments protected by PayPal

Secure payment

With EssayChief you get

  • Strict plagiarism detection regulations
  • 300+ words per page
  • Times New Roman font 12 pts, double-spaced
  • FREE abstract, outline, bibliography
  • Money back guarantee for missed deadline
  • Round-the-clock customer support
  • Complete anonymity of all our clients
  • Custom essays
  • Writing service

EssayChief can handle your

  • essays, term papers
  • book and movie reports
  • Power Point presentations
  • annotated bibliographies
  • theses, dissertations
  • exam preparations
  • editing and proofreading of your texts
  • academic ghostwriting of any kind

Free essay samples

Browse essays by topic:

Stay with EssayChief! We offer 10% discount to all our return customers. Once you place your order you will receive an email with the password. You can use this password for unlimited period and you can share it with your friends!

Academic ghostwriting

About us

© 2002-2024 EssayChief.com