CHEM 1211 L Principles of Chemistry Lab 16 February 2004 Lab Report 1 Introduction The purpose of this project is to identify an unknown organic acid (X) by conducting various experiments to determine the acid’s unique properties. By determining selected constant properties of the unknown and then comparing these properties to the constant properties of known substances‚ it is possible to identify an unknown substance. The properties used to identify the unknown must be intensive‚ or independent
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Caviness- Thames Lab Partner: Dena Jackson Reaction lab “I certify that this lab report is my own work‚ except for properly referenced and cited information. I have adhered to all guidelines published in the student handbook on Academic Integrity‚ as well as all guidelines published for this class in the Syllabus and Academic Integrity Handouts.” Purpose- The purpose of this lab was to display to us a variety of different reactions using an eclectic of things in the chemistry lab: including magnesium
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Chemistry 3373F Lab Manual 2008 Modified 11/07 Table of Contents Chem 3373 Laboratory Schedule for Fall 2008.............................................................................2 The Benzoin Condensation of Benzaldehyde ..............................................................................3 Synthesis of Dilantin and Related Compounds (two weeks).........................................................6 Synthesis of an Alkaloid: Pseudopelletierine (two weeks) .............
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AP Chemistry Analysis of Alum * Purpose: * In this lab we performed several tests to determine if our crystals were actually aluminum potassium sulfate. * Procedures: * Materials: * Chemicals: * Aluminum potassium sulfate‚ 2.5 g * Equipment – Part 1: * 150 mL beaker * Bunsen burner * 2 capillary tubes * Mortar and pestle * Notched stopper to hold thermometer *
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Kevin Nam Honors Chemistry 3/22/14 Mr. Mihordea Motion of Atoms and Molecules lab summary In this lab the standard heat of combustion of magnesium was calculated by using the calorimeter. Also‚ the point of combustion of magnesium was to see how much heat would be released from fireworks such as sparklers. The concept of this lab was to find the difference in temperature
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Thermochemistry IB questions 1. Ammonium nitrate‚ NH4NO3‚ dissolves readily in water according to the equation: NH4NO3(s) NH4+(aq) + NO3-(aq) H = 28kJ mol-1 Which of the following contribute(s) to the occurrence of this process? I. The system moves to lower enthalpy. II. The system becomes more disordered. a. I only b. II only c. Both I and II d. Neither I nor II 2. Which substance has the largest lattice energy? a. NaF b. KCl c. MgO d. CaS 3. A certain reaction is spontaneous
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1. (a) I‚ III‚ and IV are correct. II is not correct. To explain III‚ de Broglie’s equation states l = h/(mv)‚ so nl = nh/(mv) = 2pi(r). Where: l = wavelength‚ v = velocity of electron‚ n = some positive integer‚ r = distance of electron from center‚ m = mass of electron. Solve‚ get mvr = L = nh/2pi. (b) The current wave mechanical model for the atom states that there are an integer number of wavelengths in every standing integer number (n). 2. (a) The first shell electrons in Lithium are
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ANSWERS TO QUESTIONS: 1. What are the significant regions in the titration curve? Relate the characteristics of each region to the pH results obtained. - There are four significant regions in each titration curve‚ namely the initial‚ pre-equivalence‚ equivalence‚ and post-equivalence points. These points are named according to its position relative to the equivalence point. The equivalence point signifies the volume of titrant at which the solution becomes neutral. This is represented in the
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EF5052 INVESTMENTS CASE 3 Arundel Partners: The Sequel Project GROUP 8 : Ngai Chiu Wing Edward / 51042814 Ng Cheuk Yiu Hugo / 50649257 Lau Chau Nan‚ Evelyn / 9700 4330 Kuo‚ Constantino / 5106 4265 Pang Hhong Yu‚ Francesca / 50191000 Ng Ka to‚ Irin / 9747 5858 Suen Hung Kit‚ Philip / 5114 4321 Kuok‚ Kenneth / 5101 2428 Estimate the per-film value of a portfolio of sequel rights such as Arundel proposes to buy. You will try two different methods to solve this problem: some appropriate
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Department of Chemistry Extraction and Sublimation Experiment #4 10/02/13 Introduction Caffeine is a stimulant found in tea‚ coffee‚ cocoa‚ OTC medication‚ and cola drinks.It stimulates the brain and the central nervous system‚ so that a person feels less tired and more alert. The purpose of this lab is to determine the amount of caffeine in tea. The major component of tea is cellulose which is a polymer of glucose. Materials Lab coat Goggles Graduated cylinder 1 tea
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