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    Lab Report

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    is the capacitative reactance‚ R is the resistance‚ and ω = 2π f ( f is the linear frequency). Apparatus • PC with DataStudio installed • Science Workshop 750 USB Interface Box • Power Amplifier • Voltage Sensor • AC/DC Electronics Lab Board • LCR meter • Connecting patch cords Experimental Procedure The experimental procedure can be divided into three parts: Part I: Using a Frequency Scan to Determine the Resonance Frequency • The first

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    Photosynthesis Lab

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    AP Lab #5 Plant Pigments/Photosynthesis  I. Identifying the Effects of Different Variables of Light and Carbon Dioxide on the Rate of  Photosynthesis and Observing the Separation of Pigments Through Chromatography  II. Introduction  Plants have a variety of pigments‚ all of which absorb a different color of light. The three  main pigments are chlorophyll a‚ chlorophyll b and carotenoids. Chlorophyll a is the primary  plant pigment that absorbs red and blue light‚ which ultimately appears green to the human eye 

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    Thermodynamics Lab

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    derived from Hess’s Law. Pre-lab Questions: 1. Define Heat of Reaction. The enthalpy change associated with the completion of a chemical reaction. 2. Define Specific Heat. The energy it takes to raise the temperature of 1 gram of a substance by one degree Celsius. 3. Calculate the heat of reaction assuming no heat is lost to the calorimeter. Use correct significant figures. Q = c x m x t q = (4.18)(1.02 g/ml x 50ml )(3.9 oC) = -831 J 4. In problem 3 above‚ the calorimeter has

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    Thermodynamics Lab

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    (l) ∆H= -54.0 kJ/mol NH4++ OH- → NH3+ + H2O (l) (x-1) ∆H=-4.09 kJ/mol (x-1) -54.0+4.09=-49.9 NH3+ + H+ → NH4+ =- 49.9 kJ /mol (-49.9- -26.2)/-49.9 x 100 =47.3% Lab Questions: Pre: 1. The change in thermal content in a reaction 2. The amount of energy needed to change one gram of a substance 1 degree C 3. (50 mL)(1.02 g/mL)(4.18 J/g C)(25.3-21.4) = 830 J 4. 830J+8.20J/g C(25.3-21.4)= 860J 5. .25L(.6mol/1L)+.25L(.L/1mol)= 0.3mol AB 830J/.3mol(1kJ/1000J)= 2.7 kj/mol Post 1. Calorimetry

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    Lab Report

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    Lab Report: Stoichiometry Lab Oct. 27‚ 2011 Claire Elizabeth Lab Partners: Hannah Signature:___________________ Introduction- Baking soda and vinegar are two common materials found in almost every household. That‚ plus the fact that all the starting and finishing materials are non hazardous and safe‚ is why this is one of the first chemical reactions that many people are exposed to The purpose of this experiment tests which of the two reactants (vinegar and baking soda) is the limited

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    Lab 01

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    09/2/2014 Course and Section Number: SCIN131 Lesson 1 Lab: Laboratory Safety & Differences in Density due to Temperature PART 1 Begin by viewing the following Thinkwell video 15.1.1 CIA Demonstration: Laboratory Safety After you watch the above video‚ check out the safety contract at http://www.flinnsci.com/Documents/miscPDFs/Safety_Contract.pdf and then answer the questions below in sufficient detail: (a) (1 pts) Describe some general lab safety rules that were discussed in this video and reading

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    Starch Lab

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    Krupa Desai Cell Biology April 3‚ 2013 Lab: Biosynthesis of Starch Introduction: In this lab we learned the concept and procedure of synthesizing starch. We also learned the effects of pH and temperature on the reaction rates of amylase.. In the process of the synthesis lab we learned phosphorylation using a potato‚ which was what we synthesized. The phosphorylation took place after the addition of primer. There are two different types of starches used are amylose and amylopectin. To test

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    Domino Lab

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    Physics Domino Lab I. Problem: What spacing between the Domino’s will provide the fastest velocity for a line of falling Domino’s. II. Background: The Domino C.I.M. lab that we have been assigned brings forth the question of the compression of a line of Domino’s. The question is‚ what set up of Domino’s has the fastest compression time. We intend on testing this by lining up different strings of Domino’s and finding which variable of distance has the greatest compression velocity

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    Lab 1

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    Lab #1 – Assessment Worksheet Performing Reconnaissance and Probing Using Common Tools Course Name and Number: _____________________________________________________ Student Name: ________________________________________________________________ Instructor Name: ______________________________________________________________ Lab Due Date: ________________________________________________________________ Overview In this lab‚ you explored the common tools available in the virtual lab environment

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    Electromyography Lab

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    certain task. In this lab we examined motor unit recruitment and muscle fatigue by electromyography (EMG) with dynamometry (DYN). When the motor unit in the muscle is activated signals are then generated‚ which result in muscle contraction. The impulse generated are a bit weak‚ yet can still be detected by the electrodes‚ EMG and is coupled by a measurements of power‚ DYN. When all the motor units reach its maximum strength the muscles will fatigue. Finally‚ the objectives of this lab were to determine

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