Determination of An Unknown Amino Acid From Titration Abstract Experiment 11 used a titration curve to determine the identity of an unknown amino acid. The initial pH of the solution was 1.96, and the pKa’s found experimentally were 2.0, 4.0, and 9.85. The accepted pKa values were found to be 2.10, 4.07, and 9.47. The molecular weight was calculated to be 176.3 while the accepted value was found to be 183.5. The identity of the unknown amino acid was established to be glutamic acid, hydrochlorid
Crash Course in Density Jonathan Cerreta Chemistry As flight 143, a twin engine 767, was passing over Red Lake on its was to Edmonton, Canada, the left front fuel pump warning light went on. There were a few possibilities for this to happen, such as the fuel pump failing, a fuel line clogging, or a empty fuel tank. The former two were easily dealt with, since the plane could fly without one fuel pump. However, the last possibility was horrifying. After a few minutes, the second fuel pump in the
Fossil Fuels: Our Society's Dependency Natural Resources Report by Sean Falconer Chemistry 122 Mr. Hart 1997-02-07 Our society has become dependent on fossil fuels for energy. That seems fine for now considering the fact that everyone is generally happy in the present situation. Fossil fuels are relatively inexpensive and seem to be doing the trick right now. Using fossil fuels arise such issues as global warming, rising costs of scarce resources, and shortages of raw materials. None of these pr
Alfred Nobel Born in Stockholm in 1833 of Swedish parents, Alfred Nobel moved with his family to St. Petersburg, then the capital of Russia, at the age of nine. There his energetic and inventive father soon acquired a strong and respected position as an inventor and industrialist. Nobel subsequently lived in several countries and ultimately came to regard himself as a citizen of the world. Even so, he never gave up his Swedish citizenship. By virtue of the education he received in many countries
Linus Carl Pauling Linus Carl Pauling was born in 1901 and died in 1994. He was an American chemist and physicist, whose investigations into the structure of molecules led to discoveries of how chemicals bond. Pauling was born in Portland, Oregon, on February 28, 1901, and educated at Oregon State College and the California Institute of Technology (Caltech). He began to apply his insights into quantum physics as professor of chemistry at Caltech, where from 1927 to 1964 he made many of his disco
Magnetic Susceptability Michael J. Horan II Abstract: The change in weight induced by a magnetic field for three solutions of complexes was recorded. The change in weight of a calibrating solution of 29.97% (W/W) of NiCl2 was recorded to calculate the apparatus constant as 5.7538. cv and cm for each solution was determined in order to calculate the number of unpaired electrons for each paramagnetic complex. Fe(NH4)2(SO4)2€6(H20) had 4 unpaired electrons, KMnO4 had zero unpaired electrons, and K3
Marie Curie LIFE OF MARIE CURIE Marie Curie(1867-1934) was a French physicist with many accomplishments in both physics and chemistry. Marie and her husband Pierre, who was also a French physicist, are both famous for their work in radioactivity. Marie Curie, originally named Marja Sklodowska, was born in Warsaw, Poland on Nov.7, 1867. Her first learning of physics came from her father who taught it in high school. Marie's father must have taught his daughter well because in 1891, she went to Pa
Marie Curie: A Pioneering Physicist Aspirations come from hopes and dreams only a dedicated person can conjure up. They can range from passing the third grade to making the local high school football team. Marie Curie's aspirations, however, were much greater. Life in late 19th century Poland was rough. Being a female in those days wasn't a walk in the park either. Marie Curie is recognized in history by the name she took in her adopted country, France. Born in Poland in 1867, she was christened
Max Planck Justin Thomas Period 4 Chemistry 10/08/96 On April 23, 1858 Max Karl Ernst Ludwig Planck was born in Kiel, Germany. He was the sixth child of a law professor at the University of Kiel. At the age of nine his interest in physics and mathematics was developed by his teacher Hermann Muller. When he graduated at the age of seventeen he decided to choose physics over music for his career. Although he is know for physics he was an exceptional pianist who had acquired the gift of being able
Colt: A Man and His Guns The Colt six shooter will always be a legend to many fighting men. Whether you know it as an accurate, cowboy, Texas Ranger, gun-slinging, out West, corral gun, or as a little protection, the Peacemaker by Samuel Colt and Samuel Colt will never be forgotten. Samuel Colt is known as the inventor of the first revolving firearm. Colt was born in 1814 to a family were money was not the pressing issue. His father , Christopher, was a man that owned his own silk mill in the to
Oxygen Oxygen and its compounds play a key role in many of the important processes of life and industry. Oxygen in the biosphere is essential in the processes of respiration and metabolism, the means by which animals derive the energy needed to sustain life. Furthermore, oxygen is the most abundant element at the surface of the Earth. In combined form it is found in ores, earths, rocks, and gemstones, as well as in all living organisms. Oxygen is a gaseous chemical element in Group VA of the per
Photochemical Smog Gifted Chemistry IB Alternative Assessment 1997 March 19 Historically, the term smog referred to a mixture of smoke and fog, hence the name smog. The industrial revolution has been the central cause for the increase in pollutants in the atmosphere over the last three centuries. Before 1950, the majority of this pollution was created from the burning of coal for energy generation, space heating, cooking, and transportation. Under the right conditions, the smoke and sulfur dioxi
Robert Boyle Robert Boyle is considered both the founder of modern chemistry and the greatest English scientist to live during the first thirty years of the existence of the Royal Society. He was not only a chemist and a physicist as we know him to be, but also an avid theologian, a philanthropist, an essayist, and a beginner in medicine. Born in Lismore, Ireland to Richard Boyle, first earl of Cork, and Katherine Fenton, his second wife, Boyle was the youngest son in a family of fourteen. Howev
The Role Catalysts In Chemical Reactions, Their Importance In Industry, Problems and New Developments OXFORD AND CAMBRIDGE SCHOOLS EXAMINATION BOARD. General Certificate Examination - Advanced Level Chemistry (Salters') - Paper 3 mock. ROBERT TAYLOR U6JW. A Catalyst is a substance that alters the rate of a reaction. The catalyst remains unchanged at the end of the reaction. The process is called catalysis. In this report I aim going to explain the role of catalysts in chemical reactions and thei
The Safety Inspector Mr. Redos, I am an inspector for the OSHA. I have noticed the following safety objects missing in the room F 203, chemistry room. These are sprinklers, a drain, and a glass wall. You must have these objects for the safety of the students and the faculty. I have also observed the following safety objects present in the regarded room. Fire blanket, fire extinguisher, fire shower, first-aid kit, an apron, eye goggles, and an eye shower. I am very concerned in the following situ
Chemical Engineer The chemical engineer is an invaluable link between scientific principles and manufacturing realities. It involves the use of chemical, physical, and engineering principles. The scientist in a laboratory does basic research to develop new compounds and processes. When the scientist discovers a product that may be useful, the chemical engineer takes over. They adapt the product for big scale manufacturing. They do this by designing a plant to produce the item on large scale. Thu
Technetium Nalin Balan NUCL 200 Paper due 02/07/97 Atomic Number: 43 Atomic Symbol: Tc Atomic Weight: (97) Electron Configuration: -18-13-2 History, Properties and Uses: (Gr. technetos, artificial) Element 43 was predicted on the basis of the periodi c table, and was erroneously reported as having been discovered in 1925, at which time it was named masurium. The element was actually discovered by Perrier and Segre in Italy in 1937. It was found in a sample of molybdenum, which was bombarded by d
The Atom AP Physics Period 2 In the spring of 1897 J.J. Thomson demonstrated that the beam of glowing matter in a cathode-ray tube was not made of light waves, as "the almost unanimous opinion of German physicists" held. Rather, cathode rays were negatively charged particles boiling off the negative cathode and attracted to the positive anode. These particles could be deflected by an electric field and bent into curved paths by a magnetic field. They were much lighter than hydrogen atoms and wer
The Element: Chlorine General Information We researched the chemical element known as chlorine. Chlorine has an atomic number of 17 and an atomic weight of 35.453. It has a valence number of 3. The element has 3 energy levels. Chlorine exists as a greenish-yellow gas at normal temperatures and pressures. Chlorine is second in reactivity only to fluorine among the halogen elements. Chlorine is a nonmetal. It is estimated that 0.045% of the earth’s crust and 1.9% of sea water are chlorine. Chlorin
The Orgins of Atomic Theory By Levi Pulkkinen There is an eternal human compulsion to unlock the mysteries of our lives and our world. This search for knowledge has guided us to many beneficial new understandings. It has lead us into this new age where information is its own reward, an age where enlightenment is an end, not simply a means to an end. Enlightenment has been the aim of many great people. It has inspired many scientists and artists to construct articles of infinite beauty and value.
The Quicksilver Chemistry I October 25, 1996 One day an ancient alchemist was sitting at his and noticed a strange silvery liquid-like metal. He called several of his colleagues over to admire it. It was passed down through the years, this chemical reaction, that formed this "Quicksilver" as the alchemists called it. One day a French chemist Antoine Laurent Lavoisier tested and proclaimed it a metal. And he named it Mercury (Hg). With strong controversy from scientists around the world, Lavoisie
Through A Narrow Chink: An Ethical Dilemma by Pablo Baez Chemistry 104 Prof. Holme In 1951 Carl Djerassi, with the Mexican pharmaceutical company Syntex, developed the first oral contraceptive by synthesizing and altering the natural hormone Progesterone into a superpotent, highly effective oral progestational hormone called "norethindrone". Admittedly, the dynamics and importance of this find were astounding, since before this the only means of contraception was abortion, and even that was not
AIDS Michelle Lee Pelletier Sarah Smith December, 16, 1998 Mr. Marquis Honors Chemistry Aids A.I.D.S is an epidemic of the nineties. There are over one million people infected with the HIV in the United States, and over 250,000 cases of Aids. The World Health Organization estimates that there are between five and ten million infected with the H.I.V virus. This number is rising steadily. A.I.D.S is the end result of H.I.V, and to this day there is no cure. H.I.V was discovered in 1981, but not un
Biotechnology Biotechnology: Its application in agriculture Introduction: Persuade public to become aware of the changes Persuade audience to think about where they stand on this very important issue and take action according to your decision. Labeling and careful regulation of genetically manufactured foods v Persuade the American Public to think about the following changes that are being made in Agriculture as a society wish should discuss the issue. v Control genetic technology, Persuade publ
Depletion Of The Ozone Layer The ozone layer diminishes more each year. As the area of polar ozone depletion (commonly called the ozone hole) gets larger, additional ultraviolet rays are allowed to pass through. These rays cause cancer, cataracts, and lowered immunity to diseases.1 What causes the depletion of the ozone layer? In 1970, Crutzen first showed that nitrogen oxides produced by decaying nitrous oxide from soil-borne microbes react catalytically with ozone hastening its depletion. His
Issac Newton Isaac Newton was born in 1642 and died in in 1727. He was an english scientist and mathematician who was born into a poor farming family. Newton was not a good farmer so he was sent to Cambridge to study to become a preacher. Newton studied mathematics. Newton was forced to leave Cambridge when it was closed because of the plague. During that period Newton made some of his most significant discoveries. In 1675, Newton suffered a mental breakdown. He was still recovering through 1679
John Dalton John Dalton John Dalton was a great help to modern day chemistry. He was born in 1766 in the small town of Eaglesfield, Cumbria, NW England in the UK. He was a chemist that stated an atomic theory of matter, which is now the theory of modern day chemistry. Besides his theories, he published the first major book of the studies of color blindness; which affected him. The book was published in 1794. He first stated his theory in 1803: that each chemical element is composed of its own ki
Mechanical Engineering : Mechanical Engineering The day to day duties of a mechanical engineer are at first repetitive, but over time and with advancement work varies. The average mechanical engineer works anywhere from thirty-five to fifty hours a week. If the engineer is ahead of schedule the hours may be less. Depending on which type of engineer you want be, you will either wear a uniform or semiformal clothing. Usually mechanical engineers work in an office or at a desk, their clothes are se
Pierre And Marie Curie Pierre and Marie Curie and the Discovery of Polonium and Radium Introduction Marie and Pierre Curie's pioneer research was again brought to mind when on 20 April last year, their bodies were taken from their place of burial at Sceaux, just outside Paris, and in a solemn ceremony were laid to rest under the mighty dome of the Panthéon. Marie Curie thus became the first woman to be accorded this mark of honor on her own merit. One woman, Sophie Berthelot, admittedly already
Potassium Potassium is a vital element in the human body. Potassium had never been distinguished between sodium until the eighteenth century. Before potassium was recognized as an element, potassium carbonate was mixed with animal fat to make soap. It was discovered by Sir Humphrey Davy in England, in 1807. Sir Davy was able to isolate potassium using electrolysis. Potassium was the first metal isolated by this procedure. Today, it is still not found free in nature. It is obtained by electrolysi
The Chemistry Of Natural Water INTRODUCTION The purpose of this experiment is to explore the hardness of the water on campus. Hard water has been a problem for hundreds of years. One of the earliest references to the hardness or softness of water is in Hippocrates discourse on water quality in Fifth century B.C. Hard water causes many problems in both in the household and in the industrial world. One of the largest problems with hard water is that it tends to leave a residue when it evaporates.
A Study of Depression and Relationships A primary concern for Psychology research is depression. Depression affects a great deal of our population and many aspects of an individual's mental health and well-being. In my research of books, articles, and Internet pages on depression, I chose to base my paper mainly on a 1994 article of a study of depression, entitled Depression, Working Models of Others, and Relationship Functioning, by Katherine B. Carnelley, Paula R. Pietromonaco, and Kenneth Jaf
Lazzaro Spallanzani Lazzaro Spallanzani Lazzaro Spallanzai, was the Italian physiologist who was one of the founders of experimental biology. Born in Scandiano, a small town in the providence of Emilia on Jan. 12, 1729 , Spallanzani was among the many dedicated philosophersof the eighteeth century (Lazzaro...1). His main scientific interests were biological and was a master at mircoscopy,but he also looked into problems of physics,chemistry, geology, and meteorology, and volcanology (Gillispie,1
"On Experiencing Verdi's Aida" Being my first time seeing an opera, I was very much impressed by the whole production. I did not, however think it was very different than I had imagined it would be like. Although my opinion would have been much better if I saw it live, it was a great first impression. I thought that all of the characters were very well casted. I did think that even though they were all very talented singers, they could have used more facial expressions and gestures to play out t
Should Steroids Be Banned From Society? Travis Redfield Eng. 101, 12/2/96 It's amazing what athletes will do to achieve higher levels of performance and to get an edge on the rivaled competition. Often people do not realize the long term effects that result from the decisions they make early in life. This resembles the obvious phenomenon with steroids. Steroids became a spreading exposure to athletes in the Olympics and other major sporting events during the 1950's. This use of steroids among at
Synthetic Drugs of Abuse It seems that primitive man at times wished to escape his reality. He or she probably found some natural herbal drugs to facilitate this desire. In fact abuse of the coca leaf and the opium poppy has been occuring the last 3000 years, and probably longer. The mescaline containing peyote cactus has been abused by the indians for even longer. They thought it was a gift from god because they often realised profound truths when they where inebriate(at least, thats what they
Why Drugs Should Be Legalized!!!! Man, as a creature, is inherently bored. Since the dawn of time, it has been the natural instinct of man to find alternative methods to enhance his being. The many means by which man has turned to include sex, gambling, and the consumption of substances beyond the requirements of nutrition. The consumption of substances can be further broken down into legal and illegal substances. The question then becomes, who are we to place labels on certain substances by dee
Hitler And WWII Adolf Hitler Adolf Hitler’s Early Years Adolf Hitler was born in the small Austrian town of Branau on the 20th of April 1889. He came from a middle-class family that lived comfortably, although he suggested in his book Mein Kampf that his family was poor and his childhood was filled with hardship. His father Alois Hitler was a customs official with the Austrian Civil Service. His mother, Klara was a former servant girl and became Alois’ third wife. The young Hitler had ability bu
Becoming A Doctor A doctor is someone who can help someone else in need. There are many types of doctors, ranging from general pediatricians to specialists. They are respected people and are looked to when something is wrong. Everyone needs a doctor at some point, so doctors are very much in demand. I am interested in this career because I like to help people. Also, it pays well so I can live off the salary. Another reason is because many of my relatives are doctors, nurses, or dentists. Even th
The Effects of Aristotelian Teleological Thought on Darwin's Mechanistic Views of Evolution Jordan Hoffman The need to understand organisms has been a much sought goal of science since its birth as biology. History shows Aristotle and Charles Darwin as two of the most powerful biologists of all time. Aristotle's teleological method was supported widely for over 2,000 years. One scientist remarks that the Aristotelian teleology "has been the ghost, the unexplained mystery which has haunted biolog
Shannon Lucid Jon Lang Ever since children have dared to dream, they have always dreamt of going to the moon or to the stars. For the millions of children who dream this, only an infinitely small portion actually achieve this goal. In 1943 in war- torn China, a girl was born who had this same dream. Her name was Shannon Lucid. She was born in 1943 to a Baptist preacher, Joseph Oscar Wells and Myrtle Wells, a nurse. At 6 months of age she and her parents were sent to a prison camp by the Japanese
Richard Lederer: His Works Richard Lederer was once asked where he would get all these funny stories he answered: "Ever since I became a writer, I had found that questions the most difficult to answer and had only recently come up with an analogy that I thought would satisfy both my audience and me. Pouncing on the opportunity to unveil my spanking new explanation, I countered with, Where does the spider get its web? The idea, of course, was that the spider is not aware how it spins out its intr
The Sun Also Rises: A Review [I cannot express to you how glad I am that I am taking this class. I am thoroughly enjoying Hemingway. The Sun Also Rises is one of the best books I've read in quite a long time. For a while there, I was, for God knows what reason, taking Physics and Chemistry and Biology. It is really an adventure to be back with books and words and reading. I am also amazed that I never could read more of Him when it wasn't an assignment. And how is it that when I am told to write
Personal Writing: College In life people have to make choices, in my life I have had to make many, many choices. I think that my biggest decision or choice would be my application and move to college. This would be considered the biggest decision I have had to make in my life so far. When your senior year in high school rolls around, most people have to start thinking about what they want to do with their lives in the next four years, and what will happen after those four years are done. This wa
WATER OF HYDRATION Objective: To determine experimentally the water of hydration for the hydrate Borax. Theory: In this experiment, we examined and found the water of hydration of the hydrate borax. Borax is derived from the element Boron, which is a metalloid chemical element with properties between those of carbon and aluminum(95CI). Boron is relatively rare, constituting only 3 PPM of the Earth’s crust(95CI). It is most commonly found in the borate minerals borax, and kernite(95CI). Borax is
Steroids Steroids: The use of performance-enhancing supplements among athletes should be banned from all athletic sports and competition, in that it provides an unfair advantage over other athletes trying to excel naturally. Performance-enhancing drugs are a controversial topic in today’s society, which are currently under debate. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- [Category]: Science [Paper Title]: Steroids [Text]: The Performance-Enhancing Supplement C
Personal Writing: College Personal Writing: College In life people have to make choices, in my life I have had to make many, many choices. I think that my biggest decision or choice would be my application and move to college. This would be considered the biggest decision I have had to make in my life so far. When your senior year in high school rolls around, most people have to start thinking about what they want to do with their lives in the next four years, and what will happen after those fo
Is Psychology a Science? Is Psychology a Science? In order to answer this question it is important to understand the definitions of both psychology and science. The word 'psychology' comes from the Greek 'psyche' (or soul) and 'logos' (or study), which came to be known as the 'study of the soul'. The American Heritage Dictionary defines psychology as: 1. the science dealing with the mind and with mental and emotional processes 2. the science of human and animal behavior. In its pure definition t
Acid Rain Acid Rain Acid rain is polluted rain. The pollutants go up to the atmosphere and when it rains it brings the pollution down with it. Sulfur dioxide and nitrogen oxide are the gases that form the acid rain. When these gases mix with moisture it can make rain, snow, hail, or even fog. The scientific term for acid rain is acid deposition which means when the acid is taken from the air and is deposited on the earth. Major industries, coal burning factories, power plants and automoble engin
John Muir: His Achievements/journeys John Muir: His Achievements/Journeys John Muir worked at a factory in Canada. He invented time and money saving machines for the factories. But one day an accident changed his whole outlook on life. As he was tightening a machine belt with a file, the file flew out and pierced his right eye. His left eye grew dim to the reaction. John's friends and neighbors tried to help him and brought doctors. Some friends read to him. Children brought him flowers and list