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Unformatted text preview: Calculations * = Avg current time Coulombs . * = 256 300 . 77 4 C ( / .-)* = # C 1 6e 19 2 electrons ( . / .-) * = 77 4 C 1 6e 19 2 . 9 675e20 electons # = ((# / ) * )) / Avagadros electrons 2 mm Sn Grams of Sn gained # = (( . / ) * . )) / . Avagadros 9 675e20 2 118 71 092 Avogadros #(as calculated) = .24195e23 Discussion Deviations in the tin lost and the amount of tin present adhered to the copper may be apparent because of tine lost during the weighing process, calculation error (decimal places taken when weighing), and tin lost in the solution during the electroplating process. Using the atomic weight of tin is a flaw in discovering Avogadros number. We would not know the atomic weight of tin if we did not know Avogadros number. Another experiment would have to be formulated in order to truly discover Avogadros number....
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This note was uploaded on 03/19/2011 for the course CHEM 107 taught by Professor Generalchemforeng during the Spring '07 term at Texas A&M.
- Spring '07