Lab 5 The Diffraction Grating Chinua McDonald Objective: To measure the wavelength of light with a diffraction grating. Theory: The two types of diffraction gratings are the transmission and reflection gratings. They are made by ruling on a piece of glass or metal a number of evenly spaced lines with a fine diamond point. Diffraction phenomena can be analyzed in terms of Huygens’ principle‚ according to which every point on the wave front of a wave should be considered as a source
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Grayland Martin Period 5 9/4/12 Laboratory 2 Report: Enzyme Catakysis 1. Title • The effect that temperature‚ pH‚ time‚ enzyme concentration‚ and substrate concentration has on Enzyme Catalysis. 2. Abstract • Assess the general functions and activities of enzymes. Analyze the relationship between the structure and function of enzymes. Understand the concept of initial reaction rates of enzymes. Change the temperature‚ pH‚ enzyme concentration‚ substrate
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to moles of the sample. This ratio was then used to write the new and balanced equation of the dehydration process. The sample was then rehydrated to the original state and the percent of the hydrate recovered was calculated by using the mass of the rehydrated sample by the mass of the original hydrate and then multiplied by 100%. Data Presentation & Analysis Table 1: The data was collected from the lab experiment. Sample calculations are shown. Mass of beaker with sample 30.765g Mass of empty
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Epoxidation Reactions Lab Report 2 Abstract An oxygen atom is transferred from a peroxy acid to the carbon=carbon double bond thus forming an epoxide. Scheme 1. Oxone Epoxidation. Scheme 2. mCPBA Epoxidation. The percent yield for the Oxone epoxidation reaction was 65% yield and the mCPBA epoxidation reaction was 70% yield. Oxone is the greener alternative because using mCPBA is twice as expensive as Oxone and leaves behind the epoxide plus m-chlorobenzoic acid while Oxone creates non-toxic
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Identities expressing trig functions in terms of their complements cos t = sin([pic]/2 – t) sin t = cos([pic]/2 – t) cot t = tan([pic]/2 – t) tan t = cot([pic]/2 – t) csc t = sec([pic]/2 – t) sec t = csc([pic]/2 – t) Periodicity of trig functions. Sine‚ cosine‚ secant‚ and cosecant have period 2[pic] while tangent and cotangent have period[pic]. sin (t + 2[pic]) = sin t cos (t + 2[pic]) = cos t tan (t + [pic]) = tan t Identities for negative angles. Sine‚ tangent
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Synthesis of 4‐methylcyclohexene via Dehydration of 4‐methylcyclohexanol Heston Allred TA: Christine Woolley Thursday 1:05-4 pm Laboratory Experiment #10 Abstract 4-methylcyclohexanol was synthesized to 4-methylcyclohexene using dehydration. 4-methylcyclohexanol was heated to reflux and the subsequent distillate (4-methylcyclohexe) was collected. It was then purified using sodium chloride to separate products and an anhydrous solid was then added and filtered
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NTC 324 Week 2 Individual Assignment With Lab Challenge https://hwguiders.com/downloads/ntc-324-week-2-individual-assignment-lab-challenge NTC 324 Week 2 Individual Assignment With Lab Challenge NTC 324 Week 2 Individual Assignment Assignment Preparation: Activities include completing the assigned reading‚ independent student reading‚ and research. Choose the best answer for each question in the “Best Answer” at the end of these chapters‚ and write a few sentences for each question to justify
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Finch Evolution Over 100 Years: Darwin Island vs. Wallace Island Kristin Moeller Tamu Hagwood September 2‚ 2013 Evolution of Finches by Population and Land Size Introduction and Purpose Finches reside on two islands‚ Darwin and Wallace. Parameters for one island will be changed to study the evolution of the finch’s beak size and population. This experiment will show basic principles of evolution by examining the finches over a time frame of 100 years. The purpose of this experiment
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cheese. Lactic acid bacteria(LAB)‚ a bacteria that can be found in the production of cheese‚ its stress gene was investigated in the experiment by using various biochemical and genetic techniques to identify and extract. The characterisation of the strain illustrates how identification of strains differ using different methods‚ such as gram stain and 16s rRNA screening. After the characterisation‚ the stress gene isolation assist the further understanding of the gene on LAB be giving different stress
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absorptivity (1). Then we can use the value of Ԑ to determine the concentration of [K2Cr2O7]‚ by taking the absorbance ratings and dividing them by Ԑ. Determining the order of reaction for a reactant‚ in this case K2Cr2O7‚ must be done experimentally (2). This is accomplished by making three graphs. One is concentration of reactant‚ [K2Cr2O7]‚ versus time which shows if there is zero order dependence of specific reactant. The second is the natural log of the concentration of a reactant‚ ln[K2Cr2O7]
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