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Three And Four Reaction Rate
859 wordsTitle: Examining Some Properties of the Enzyme -amylase In this experiment a deeper meaning in the catalysts of reactions is studied. Catalysts accelerate chemical reactions without permanently changing the reaction. Enzymes, catalysts in biochemical reactions, are globular proteins which lower the activation energy needed to begin a reaction and therefore increase the rate at which efficient reactions can occur. Proteins (henceforth enzymes) are complex molecules made of amino acids in polypept...
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Lemon Juice Hydrogen Ions
527 wordspH is the measure of H+ (a proton) a concentration of a solution. In order to understand pH, a scale has been designed, this scale ranges from 0 to 14. Anything from 0 to 6. 99 is acidic, a substance that increases hydrogen ions concentration in a solution, such as lemon juice. If the scale ranges from 8 to 14 would be determined as a basic solution, a substance that reduces the hydrogen ions concentration in a solution, an example of this would be ammonia. If the solution concentrate has a pH o...
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Ozone Layer Ultraviolet Rays
1,294 wordsAtmospheric ozone layer depletion is a serious problem currently facing the world. The ozone layer protects humans, animals, and plants from harmful ultraviolet rays. Money and time are being spent on ozone repair, but the problem still exists. The ozone layer is a region of the stratosphere containing ozone, or O 3 gas. The ozone layer is essential to both plant and animal life on earth because it protects the surface from dangerous ultraviolet light. However, industrial and domestic chemicals ...
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Degrees Celsius Atomic Mass
318 wordsAn American Chemist named Glenn T. Seaborg discovered plutonium in 1941 at Berkeley University in California. The discovery of Plutonium was not announced until 1946 because America was at war with Japan and Germany. Plutonium was named after the planet Pluto, after the planet Neptune in the solar system and Neptune gave its name to Neptunium. Plutonium is a silvery metal that turns yellow when exposed to air. It is warm to the touch due to the releasing radioactive energy from it. The atomic nu...
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Plant Cells E G
840 wordsWater has importance inside cells and externally. This may be because it has interesting chemical and physical properties; it can be found naturally in all three of its states. However its molecules are bonded together by hydrogen bonds, this raises its melting and boiling points, i. e. its boiling point would be - 120 C rather than 100 C. Also because it contains slightly negatively charged oxygen atoms and slightly positively charged hydrogen atoms making it polar. Water has been called a univ...
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Determining Ph Of Identical Strong And Weak Solutions
844 wordsExperiment: Determining pH of identical strong and weak solutions Date: 31 / 10 / 03 Aim: Plan and perform a first-hand investigation to measure the pH of identical concentrations of strong and weak acids. Equipment: Deionised water (H 2 O) Tartaric Acid (C 4 H 6 O 6) Citric Acid (C 6 H 8 O 7) Sulfuric Acid (H 2 SO 4) Acetic Acid (CH 3 COOH) Hydrochloric Acid (HCl) Ammonium Chloride (NH 4 Cl) Tap Water (H 2 O) Nitric Acid (HNO 3) Probe Ferric chloride (Fe Cl 3) Wash bottle Sodium Chloride in tap...
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Ph Of 5 Sulphur Dioxide
1,087 wordsAcidity is measured using a pH scale, with the number 7 being neutral. A substance with a pH value of less than 7 is acidic, while one of a value greater than 7 is basic. A substance with a pH of 6 is 10 times more acidic than another with a pH of 7. Usually the pH of 5. 6 has been used as the baseline in identifying acid rain, although there has been much debate over the acceptance of this value. Interestingly enough, a pH of 5. 6 is the pH value of carbon dioxide in equilibrium with distilled ...
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Hydrogen Atoms Oxygen Atoms
824 wordsTwo Americans and a Japanese were awarded this year's Nobel Prize in Chemistry for developing more efficient chemical reactions to produce many medicines, including L-dopa, the standard treatment for Parkinson's disease. Dr. William S. Knowles, 84, of St. Louis, who retired from the Monsanto Company in 1986, and Dr. Ryoji Noyori, 63, director of the Research Center for Materials Science at Nagoya University in Japan, shared half of the $ 950, 000 award. Dr. K. Barry Sharpless, 60, a professor of...
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Polar Regions Magnetic Field
612 wordsPioneer 10 was launched in 1972 and flew within 81, 000 miles (130, 000 kilometers) of Jupiter on Dec. 3, 1973. The probe revealed the severe effects of Jupiter's radiation belt on spacecraft. Pioneer 10 also reported the amount of hydrogen and helium in the planet's atmosphere. In addition, the probe discovered that Jupiter has an enormous magnetosphere. Pioneer 10 was launched toward Jupiter on an Atlas rocket in 1972. After reaching the planet in late 1973, it made the first close-up photogra...
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Lead Acid Battery Potassium Hydroxide
787 wordsThere are many kinds of batteries which consist of different materials in order to produce an electric charge. Here are some of the most common batteries, what they consist of and how they work. Bichromate Cell (see picture # 1) A battery is a device which converts chemical energy into electrical energy. A battery usually consists of two or more cells connected in series or parallel, you can also have a single cell battery. All cells consist of a positive electrode, and a negative electrode. An ...
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Planet From The Sun Human Behavior
569 wordsWritten Assignment # 5 The structure of the Sun is defined by the conditions of energy conservation, mass conservation, momentum conservation and the mode of energy transport. The Sun has many layers. The interior of the Sun includes the core, the radiative zone, and the convective zone. The photosphere produces the visible light we see, the chromosphere is the part of the solar atmosphere, and the corona is the outermost layer of the Sun. The sunspots are regions on the surface of the Sun. They...
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Hydrogen Peroxide Chemical Imbalance
1,140 wordsThe music vibrates throughout your body. Everything you perceive or imagine pulsates in unison to form the collective conscience. Every thought, feeling, and your existence as a whole become euphoric and connected. You love and understand everything as never before. Why does this have to end after a few hours? Why can it not be real? This is your body on MDMA (Ecstasy). Also known as Adam, E, and the love drug, Ecstasy has almost become synonymous with thoughts of druggie teenagers dancing at al...
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H 2 O Carbon Dioxide
854 wordsColours Chloroplasts contain several different pigments the majority of which are chlorophyll a and chlorophyll b. Both of these types of chlorophyll absorb similar wavelengths of light, but chlorophyll a absorbs a slightly higher wavelength than chlorophyll b. Neither chlorophyll absorbs much light in the green region of the spectrum thus making it appear green. This can be plotted onto a graph (fig 1. 1). This graph is called the Absorption Spectrum. The Absorption Spectrum is very similar in ...
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Carbon Dioxide Uric Acid
925 wordsAim: Exretory System Excretory System Aim: To examine and understand the structure, function and differences between different types of excretory systems. The difference between excretion and egestion is that whereas excretion is the process of removing toxic waste by-products of the body s metabolism, egestion is the removal of indigestible remains / substances through the alimentary canal. Through egestion, substances that were not able to be used in the body are removed, and through excretion...
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Amino Acids Fatty Acids
807 wordsToday, weve realised that the very first life on Earth was indeed originated from abiotic surroundings. In fact, organic molecules have been successfully generated from abiotic elements by scientists To understand how this creation of life from abiotic material occured, we have to consider a critical idea. Life originated from its abiotic surroundings. Thus, it is important for us to learn about the physical and chemical environments of the primitive Earth. The atmosphere of primitive Earth cons...
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Fuel Cells Fuel Source Energy
225 wordsElectricity is a vital part of in the present day economic based world and almost impossible to do with out in this modern age. Many problems arise over the most commonly used energy sources of today such as oil, coal and even the voltaic cells used as car batteries. These resources are often expensive and are not everlasting. The process of actually producing electrical energy for daily use is inefficient since very little of the potential energy the fuel has ends up as electricity. The power g...
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Amount Of Energy Fusion Reaction
995 wordsBy Shaun Fusion Fusion Energy By Shaun Thoma Shaun Thomas Mr. Sweet land General Physical Science June 22, 2001 Fusion: Our Futures Energy? Fusion energy seems to be the most promising energy source of the not-too-distant future. It is safe, it uses an energy supply that is so abundant that it will never run out, it gives off harmless waste, and it produces energy comparable to the Earths sun! But are there any problems with this hopeful energy source? What is Nuclear Fusion? To understand fusio...
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Blast Furnace Hydrogen Sulfide
1,000 wordsIron, Steel and Metal Finishing Operations Summary By: Kevin Worley Southwestern Oklahoma State University Production, forming, and cleaning of steel products creates several waste-outputs. These outputs range from the benign to RCRA regulated hazardous waste. Listed below are the steps associated with a metal product from ore to finished product, detailing the various wastes. Production of Coke Converting iron ore into steel involves using coke, limestone, and ore to create the reduced metal. C...
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J Robert Oppenheimer World War Ii
822 wordsJ. Robert Oppenheimer J. Robert Oppenheimer, a pioneer in the field of nuclear science. He worked with Albert Einstein on the atomic bomb and headed the Manhattan Project in November 1942. J. Robert was born to Ella and Robert Oppenheimer who were both Jewish and emigrated from Germany in 1888. Robert was always interested in science and helped his grandfather study geology. He excelled through school but had a difficult time in other parts of his life due to not being around people his own age ...
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H 2 O Mass Spectrometer
531 wordsAMass Spectrometer Mass Spectrometer A mass spectrometer produces charged particles (ions) from the chemical substances that are to be analyzed. The mass spectrometer then uses electric and magnetic fields to measure the mass (weight) of the charged particles. There are many different kinds of mass spectrometers, but all use magnetic and / or electric fields to exert forces on the charged particles produced from the chemicals to be analyzed. A basic mass spectrometer consists of three parts: 1. ...
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