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Solved: An aqueous KI solution to which a few drops of

Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro ISBN: 9780321809247 1

Solution for problem 18.83 Chapter 18

Chemistry: A Molecular Approach | 3rd Edition

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Chemistry: A Molecular Approach | 3rd Edition | ISBN: 9780321809247 | Authors: Nivaldo J. Tro

Chemistry: A Molecular Approach | 3rd Edition

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Problem 18.83

An aqueous KI solution to which a few drops of phenolphthalein have been added is electrolyzed using an apparatus like the one shown here: Describe what you would observe at the anode and the cathode. (Hint: Molecular iodine is only slightly soluble in water, but in the presence of I2 ions, it forms the brown color of I3 2 ions. See 12.102.)

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Chapter 2 8-29 & 8-31 Monday, August 29, 2016 3:01 PM SI Sessions Monday 7:00pm-7:50pmin Pablo 101 Wednesday 6:00-6:50WXLR A118 Fridays 10:00AM-10:50in MSHAL F-101 Read pg. Chapter 2: 40-73 Chapter 4: 140-141 Chapter 8: 301-309 Notes from readings: Chapter 2- Greek Philosophers described the material worlds as made up of tiny, indivisible particles they called atomos meaning indivisible or uncuttable. The law of constant composition: In a given compound, the relative numbers and kinds of atoms are constant. The law of conservation of mass: The total mass of materials present after a chemical reaction is the same as the total mass present before the reaction. The law of multiple proportions: If two elementsA and B combine to form morethan one compound, the masses of B that can combine with a given mass of A are in the ratio of small whole numbers. Thomsonusing his cathode experimentdetermined the charge to mass of an electron was 1.76 X 10 coulombs per gram. Once the charge -to- mass ratio was determined,in 1909 Robert Millikan of the University of Chicago measured the charge of an electron using his oil-drop experiment whi

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Textbook: Chemistry: A Molecular Approach
Edition: 3
Author: Nivaldo J. Tro
ISBN: 9780321809247

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Solved: An aqueous KI solution to which a few drops of