I decided to do this essay on Robert Boyle. Robert was born the 25th of January in 1627 in London England, he was an anglo-irish natural philosopher. He was also a chemist, inventor, and a physicist. Boyle is largely regarded today as the first modern chemistry. Robert is best known for Boyle's Law, which describes the inversely proportional relationship between the absolute pressure and volume of a gas, if the temperature is kept constant within a closed system. He had a lot of outstanding works
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Discussion: Average concentration of NaOH solution was 4.35 M. There are many sources of error in this experiment as we got some percentage differences in the two different trials. For the Trial 1 and Trial 2, the percentage difference is 3.7 % which is significant difference to be noted. This percentage difference could occur due to many reasons such as not measuring the KHP properly as we got 0.42 g for first trial and 0.4139 g for second trial of KHP for performing titration but it is more than
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Chemical Warfare is a war involving toxic chemicals as weapons. Chemical Warfare is a different from a Nuclear or Biological Warfare. Nuclear Warfare involves weapons such as the atomic bomb used in Hiroshima, biological warfare is where infectious items such as bacteria, viruses, and fungi are used to eliminate plants or humans, but our main topic is chemical warfare and this types of wars use toxic chemicals to damage your sight, your body system, and to cause death. All of the chemicals used
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Chemical technicians provided technical support in the chemical related field. They use the principles and theories of chemistry and mathematics to solve problems in research and development. There are two types of chemical technicians. There are research technicians who work in experimental labs and then theres process control technicians who work in manufacturing or other industrial plants. In order to become a Chemical technician you need a diploma from a chemical technology program at a college
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It is especially harmful to the eyes. Wear safety goggles. Any sodium hydroxide spilled on the skin should be washed off immediately with large quantities of water. Kerosene and ethanol are both flammable. Care should be taken when using these chemicals around flames. Introduction: A soap is the sodium or potassium salt of a long‐chain fatty acid. Most solid soaps are sodium salts of the type to be made in this experiment. The starting materials are fats or oils, which are the glycerol
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BMW 6HP19 – 6HP21 Transmission fluid level procedures A) Transmissions fluid level checking. 1) The transmission fluid temperature must be between 30°C and 35°C before checking can begin. Use test equipment to determine the trans temperature. 2) The vehicle must be level with engine running at idle speed and air conditioning turned on. 3) Step on the brakes firmly, apply parking brake fully and shift to D and R, briefly pausing in each position before shifting back to the Park position.
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Methane (CH4) has four electron pairs and forms the bonding shape of a tetrahedral (bond angles will be at 109.5⁰). Ammonia (NH3) has one lone pair and four electron pairs which bonds to form a Trigonal Pyramidal (bond angles of 107.3⁰). These chemicals both share electrons with a covalent bond (attraction between nuclei for shared pairs of electrons but due to the lone pair of electrons in Ammonia the angle produced is slightly less. This happens due to a lone pair bond having a higher repelling
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Alka-Seltzer tablets are little flat circles that, when placed in water, fizz. These tablets are used for relief of headaches, pain, heartburn, indigestion, and many more. The tablets fizz in water because the sodium bicarbonate and citric acid in the tablets are reacting and producing carbon dioxide bubbles. In our lab we tested the affect of different temperatures and acidity levels of water on the speed of the reaction of the Alka-Seltzer tablet. My hypothesis for the lab on how different temperatures
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The rate of a chemical reaction can be raised by temperature, concentration of solutions, catalysts, etc. Increasing the surface area of a solid reactant is one way the rate of reaction can be sped up. If the surface area is increased, then more particles are exposed to reactants, there are more collisions, and these two variables overall speed up the rate of reaction. (BBC, 2014) A solid that is found in a solution can only react when particles collide with the surface area of the solid. When the
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number of electron shells the greater the potential energy of the electrons in that shell. 6. How do electron shells relate to biology? a. Electron shells are important to biology as the configuration of the atom’s shells directly relate to the chemical behavior of said atom. For example, the noble gases all have their valence electron shell completed and not feel attraction to other atoms. This leads to the noble gases typically not forming compounds and being extremely stable
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