EXPERIMENT 5 REDOX TITRATION: TITRATION USING SODIUM THIOSULPHATE Objectives 1. 2. To prepare a standard solution of potassium iodate for use to determine the concentration of sodium thiosulphate solution accurately. To acquire the proper techniques of carrying out a titration. Introduction Redox titrations using sodium thiosulphate as a reducing agent is known as iodometric titration since it is used specifically to titrate iodine. The reaction involved is: I2 + 2Na2S2O3 I2 + 2S2O322NaI + Na2S4O6
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Experiment : 1 Tittle : Preparation of bis(acetylacetonato)copper(II) complex Objective : To synthesis the bis(acetylacetonato)copper(II) complex Introduction : A complex ion is usually form with high charge density metal ion as a central and formation of coordinate covalent bond (dative bond) with high electron molecules or ions. These molecules or ions are functioning as ligands (electrophile in organic compounds). They are easily attracted by electrophile (electron deficiency
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________ Name: Loren B. Matulac Date : November 09‚ 2013 Yr. & Section: IV- Perseverance Teacher: Mrs. Pacita J. Yapsangco “Magnetic Field of a Coil” Experiment 2.5 I. Objectives: To produce a strong magnetic field just by looping the wire into coils II. Materials: 6 V or 9 V batteries 50 cm of bare 12- gauge copper wire Stiff cardboard and scissors Wooden dowel (about 15 cm long x 4 cm
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In Stanley Milgram’s experiment‚ The Memory Project- effect on punishment on learning‚ the concept of staging in terms of what is real and not real in relation to the photographs objects and subjects‚ which is conveyed through the facilitator and the learner parallels Sontag’s concept of framing and representation In Plato’s Cave‚ and Barthes idea of posing and theater in Camera Lucida. Sontag and Barthes’s understandings of photography’s “reality” intersect in that their notion of the object in
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The milgram experiment. The three people involved were: the one running the experiment‚ the subject of the experiment a volunteer‚ and a person pretending to be a volunteer. These three persons fill three distinct roles: the Experimenter an authoritative role‚ the Teacher a role intended to obey the orders of the Experimenter‚ and the Learner the recipient of stimulus from the Teacher. The subject and the actor both drew slips of paper to determine their roles‚ but unknown to the subject‚ both slips
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Experiment 21: Reaction of some Akyl Halides Completed on November 13‚ 2012 Purpose The purpose of this experiment was to examine reactiveness of 10 organic compounds under both SN1 and SN2 conditions. Table of Chemicals Compound Structure Molecular Weight (g/ml) Boiling Point (°C) Melting Point (°C) Density (g/ml) Safety 1-bromobutane 137.03 102 -112 1.269 Flammable‚ irritant 2-chloro-2-methylpropane 92.57 51 -26 0.89 Flammable‚ irritant acetone 58.08 56.5 -95 0.793 flammable
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A. Stanford Prison Experiment- In this experiment‚ students volunteered to be a part of a psychology experiment that was being conducted at Stanford College. Because of the situation around them‚ they conformed to the environment‚ even though it was only a simple experiment in a Stanford hallway. Embarrassed and yet impressed‚ the experimenters stated this‚ “The negative‚ anti-social reactions observed were not the product of an environment created by combining a collection of deviant personalities
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Experiment 11: Reactivities of Some Alkyl Halides in Substitution Reactions Materials & Methods: Materials used: 1-bromobutane 1-chlorobutane bromocyclopentane Bromocylcohexane 2-chlorobutane 2-bromobutane 2-chloro2-metylpropane 2-bromo-2-methylpropane Crotyl chloride Bromobenzene Benzyl chloride 1-chloroadamantene Methods/Techniques: Physiochemical Research: Reagent | Formula Weight | Density | Boiling Point | Melting Point | Color | 1-bromobutane | 137.023 g/mol |
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Monica Perez Experiment 8: Acetylsalicylic Acid Experiment 01/25/2013 CHM Lab- 2211 Sec 0016 Instructor: Jennifer Reed Introduction: Commonly used as Aspirin‚ acetylsalicylic acid is an analgesic (pain reliever)‚ which is one of the products of the esterification reaction between salicylic acid and acetic anhydride. This esterification occurs since the hydroxyl group from the salicylic acid reacts with acetic anhydride to form an ester. In this experiment‚ we will be able to recreate
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Experiment #7 Fall 2014 Dehydration of an alcohol NAME Nick Weinberger POSTLAB 1. Show the mechanism for the dehydration of -tetralol under conditions employed in the lab. Show all intermediates‚ and show electron flow with arrows. 2. What general mechanism most likely applies to this reaction (SN2‚ E2 etc)? E1 3. Why was acid employed in this reaction? The acid was used to protonate the leaving group (OH) to form water which is a much better leaving
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