is just a brand name for Povidone-iodine. This substance was made in 1955 for a wide variety of medical uses. Here are just a few: Doctors scrub their hands with it before surgery‚ it is used as eye drops and throat rinses‚ it is applied on the skin before general surgery and even used in homes for cuts and scrapes. All of these uses have to do with disinfecting the skin‚ which is what Povidone-iodine does best. Although‚ the amount of concentrated Povidone-iodine changes depending on the use. For
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Chemistry 2500- Exercise C4 The Emission Spectrum of Atomic Hydrogen Objective The purpose of this lab was to calculate an experimental value for the Rydberg constant and then the ionization energy for the hydrogen atom. These values will be obtained by using a prism spectrograph to measure the wavelength value for a section of the visible line spectrum of atomic hydrogen. Theoretical Background When H+ combines with an electron it forms it’s excited state‚ H. This excited atom
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Hello everybody! My name is (be) Stewie and this ....is...(be) my family. My mother’s name ..is.....(be) Louis. She .....is..(be) a housewife and she ...is....(be) 35 years old. She ......gets up....(get up) at 7o’clock every morning and ..........prepares......(prepare) breakfast. She...cleans.........(clean) our house and ....feeds........(feed) our dog. She ....coocks.......(cook) well. She .........likes....(like) listening to the radio and watching soap operas on TV‚ but she ....doesn´t like
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Experiment 8: Hydrogen Phosphate Buffer Systems Purpose The purpose of the lab was to create a buffer solution and observe the capacity of the phosphate buffer system. Also‚ the experiment was meant to provide experience with the calculations and mathematics involved in creating the buffer solution. Finally‚ the lab was designed to provide an insight and appreciation for the necessity and complexity of buffers in our physiology and in the environment. Procedure No deviations were made from
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Organic molecules are the molecules of life that include Carbon and Hydrogen. Organic molecules consist of four important classes which are lipids‚ carbohydrates‚ proteins and nucleic acids. The most important organic molecule is Carbon. Carbon can form with up to 4 different atoms to form chains‚ rings and branches. Organic molecules also contain monomers. Monomers are the “building blocks” of macromolecules. Macromolecules are made up by chains of monomers‚ these are called polymers. Continuing
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Redox Reactions Reactions involving oxidation and reduction processes are very important in our everyday world. They make batteries work and cause metals to corrode (or help to prevent their corrosion). They enable us to obtain heat by burning fuels--in factories and in our bodies. Many redox reactions are complex. However‚ combustion and synthesis (from elements) are two ordinary examples which require very little description. Just a little more involved are the displacement reactions‚ with
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Astronomical Clock “Tick tock‚ tick tock” is a common sound from today’s clocks. When traveling in Prague in the Czech Republic‚ the normal everyday clock is not to be found in front of “the Old Town Hall.” Instead‚ the Prague Astronomical Clock overshadows all other clocks with its magnificent craftsmanship. The delicate clock is filled with different mechanics that make it work‚ along with legends and stories to come along with it‚ and the many different times it tells. Normal clock mechanics
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the R Lab 1. One mole of hydrogen gas has a mass of 2.02 g. Use your value of molar volume to calculate the mass of one Liter of hydrogen gas at STP. The density is in g/L. Compare your value to a literature value? (Consult a hand book or text book) 2. In setting up this experiment‚ a student noticed that a bubble of air leaked into the gas tube when it was inverted in the water bath. What effect would this have on the measured volume of hydrogen gas? Would the calculate value
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International Journal of Engineering Research and Development e-ISSN: 2278-067X‚ p-ISSN : 2278-800X‚ www.ijerd.com Volume 5‚ Issue 2 (December 2012)‚ PP. 44-46 System Identification-Different Techniques Ramesh Kr1‚ Chitranjan Kr2‚ Ruchita3 1 National Institute of Technology Patna‚ 2PSCET Vaishali‚ 3RIET Jaipur Abstract:- Engineering applications require description of the dynamic behavior of the system. Though a no. of applications are known in the field of system identification‚ three
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aim to find out the order of reaction with respect to [H2O2] and [2I-]. I aim to find out the activation enthalpy of the reaction by finding the rate of reaction at different temperatures using the Arrhenius Equation. The experiment will go as follows: Into a conical flask put 15cm3 of distilled water and add 2cm3 of [X]moldm-3 potassium iodide (KI) solution and 1cm3 of 2moldm-3 sulphuric acid. Then add to this 2.5cm3 of 5vol (0.42moldm-3) hydrogen peroxide (H2O2). For the second part
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