ERRORS AND UNCERTAINTIES IN EXPERINMENTAL MEASUREMENTS ELANKUMARAN NAGARAJAN 4TH DECEMBER 2011 SUMMARY Experimentation is an important process that will be carried out on new theories‚ ideas‚ products and devices to validate them. Despite the quality of the experiment there will always be some uncertainties associated with the experimental data. These uncertainties
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0.041 0.048 0.050 0.055 0.012 0.016 According to Beer Lambert law‚ Absorbance‚ A= λbc λis the molar absorbtivity coefficient in L mg-1 cm-1 b is the path length(in cm) of the cuvette which the sample is contained c is the concentration of the compound in solution‚ in mol L-1 A = λbc is in the form of y = mx where m is the gradient of the straight line
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The purpose of this lab was to determine the effects of changes in variables such as temperature‚ pH and concentration on catalase enzyme activity. Proteins are organic compounds made up of amino acid subunits consisting of carboxyl and amino functional groups‚ linked together by peptide bonds through condensation reactions. They are an essential part of all living organisms. Enzymes are “biological catalyst used to speed up chemical reactions (Athanasopoulos‚ 2014). Normally‚ for chemical reactions;
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total of 15 points. To receive full credit for Exercise 8‚ you must submit the following: 1) The typed Exercise 8 report form‚ complete with all of your data recorded and questions answered. 2) A full scientific report for the Part I experiment that your group conducted. Use the supplemental guide to writing a scientific report to help you produce this report. Part 1: Does light matter? Table 8.1: Group and Class rates for Photosynthesis by Elodea sprigs. |Light Condition
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The Charge/Mass (e/m) Ratio of the Electron PHYS 0212: Introduction to Laboratory Physics Fall 2012 Abstract The experiment conducted demonstrated correlation between the charge and mass of an electron and the behavior of magnetic fields. The lab was divided into four parts. The first three parts were conducted with a compass that was used to locate the magnetic field lines around a bar magnet‚ a solenoid and then a pair of Helmholtz coils. As a result of these trials‚ our observations found
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Part 2: Safe work with large inductances 1. One of the main hazards of using inductances is electrical energy stored in the magnetic field. If a circuit containing an inductance is interrupted then the stored energy can release through air (forming an arc). This can destroy a switch contact‚ burn fingers‚ create other damage. In the circuit of Figure 1‚ show how to mitigate the risk (pay attention to polarity!). We give the elements in this circuit some simple values for the purpose of
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FOOD NUTRITION BASICS LABORATORY REPORT LAB 3 PROTEINS DUE DATE Next FNB Practical NAME (CAPITALS) ______________________________GROUP LETTER___________ This work is the product of my own efforts and has not been copied from any other sources except where full acknowledgement has been given. Signed________________________________________ Student No._____________ Introduction The principle involved in this experiment is denaturation. It involves loss of ordered structure and can be caused by changes
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:___________ Chemistry Laboratory 101__ Date Submitted[1] :___________ Members[2]: Instructor’s Initials[3] :___________ 1. _____________________ 2. _____________________ 3. _____________________ 4. _____________________ Laboratory Report Sheet The Bunsen Burner Activity 1 Objectives:4 1. ________________________________________________________ 2. ________________________________________________________ 3. ________________________________________________________
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Questions and Hypothesis: Seed germination‚ plant growth‚ and sprouting of leaves are affected by several factors: supply of nutrients‚ water‚ exposure to sunlight‚ and conditions of surroundings. Due to certain stimuli in the surroundings plant “hormones” cause plants to behave in ways that ensure the most efficient use of resources while preserving the most energy. One stimulus to consider‚ is the exposure of plants to sunlight; when plants are just sprouting and are underground‚ the sti
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Starsky Intro to Biology September 26‚ 2011 Lab Partners: Kristen‚ Tania and Betty Introduction When using different methods to measure pH levels there are some tools that can be useful. Some more than others but by putting into action the different methods it may determine which tools will work best and give the best results when testing the pH within a solution. The pH‚ which stands for
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