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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“A Chief Lieutenant of the Tuskegee Machine” The novel A Chief Lieutenant of the Tuskegee Machine is an engaging biography of an influential well-known black man‚ Charles Banks. He was the leader of a native town in Mississippi. He influence went beyond Mississippi; he transformed the town of Mound Bayou into a highly visible symbol of black prominence. Charles Banks was born in 1873 in Clarkdale‚ Mississippi. Banks lived in a time where blacks did not have the same rights as whites in the south
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the U.S. Supreme Court ruled that Tuskegee city officials redrew the cities boundaries unconstitutionally so that the white candidates in the cities political race could win and the blacks’ votes would not count. This case laid the framework for the passage of the 1965 voters rights act which outlawed discrimination in voting. The case was named after a Tuskegee university professor Charlie A. Gomillion who was the plaintiff and the defendant was the mayor of Tuskegee Phillip M. Lightfoot. Gomillion
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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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‘One pinched her‚ another walked round her; one gentleman poked her with his cane; and one lady employed her parasol to ascertain that all was‚ as she called it‚ “natural.” This inhuman baiting the poor creature bore with sullen indifference‚ except upon great provocation‚ when she seemed inclined to resent brutality [...]. On these occasions it required all the authority of the keeper to subdue her resentment. At last her civilized visitors departed […].’ Taken from her native land of South Africa
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unethical experiments on human subjects; regardless of what their condition is or if they have been diagnosed with a disease. Although‚ the use of humans for experiments to further develop cures for diseases‚ or to improve weaponry in war has always been a questionable practice. Hundreds of medical experiments have been performed by various doctors such as: The Tuskegee Syphilis Study by the U.S Public Health Service‚ the experiments conducted in Nazi Germany by Josef Mengele‚ the experiments performed
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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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medical experiments on children‚ women‚ minorities‚ homosexuals and inmates? Think again: This timeline‚ originally put together by Dani Veracity (a NaturalNews reporter)‚ has been edited and updated with recent vaccination experimentation programs in Maryland and New Jersey. Here’s what’s really happening in the United States when it comes to exploiting the public for medical experimentation: (1845 - 1849) J. Marion Sims‚ later hailed as the "father of gynecology‚" performs medical experiments on
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