Lab#3 - 1 2 3 4 Initial Weight 30.606 30.3100 29.9537...

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Experiment #3 Purpose : Determination of the content of ascorbic acid by means of iodine oxidation (Iodine produced insitu by reaction of potassium iodate with excess iodide ion. Unknown : # 3D Safety factors : Safety goggles and gloves as we are dealing with acids and bases which might have corrosive and irritant properties on skin. Raw Data Preparation of Standard Weight of KIO = 1.6g Molarity of standard= Preparation of Sodium Thiosulfate Weight of Anhydrous Na S O = 8.6g Analysis of Unknown Unknown #
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Unformatted text preview: 1 2 3 4 Initial Weight 30.606 30.3100 29.9537 29.6065 Final Weight 30.3101 29.988 29.6065 29.2396 Total Weight 0.3536 0.3582 0.3572 0.3669 Titration Standard # Trial Trial 1 Trial 2 Trial 3 Trial 4 Initial Vol 0.00 0.00 0.00 0.00 Final Vol 39.00 53.50 51.30 49.00 Vol used 39.00 53.50 51.30 49.00 Titration Standard # Trial Trial 1 Trial 2 Trial 3 Trial 4 Initial Vol 1.50 0.00 0.00 1.5 Final Vol 29.70 26.40 19.40 19.20 Vol used 28.20 26.40 19.40 17.70 Molarity of KIO = ( ) =...
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This note was uploaded on 09/01/2009 for the course PSYC 300 taught by Professor Cambron during the Spring '08 term at Texas A&M.

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Lab#3 - 1 2 3 4 Initial Weight 30.606 30.3100 29.9537...

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