Experiment 39 Oxidation – Reduction Titrations II : Analysis of Bleach A. Standardization of 0.05 M Na2S2O3 Solution KIO3 concentration 0.01 M Volume of KIO3 Trial #1 Trial #2 Final burette reading 15.01 mL 30.00 mL Initial burette reading 0.00 mL 15.01 mL Milliliters of KIO3 used 15.01 mL 14.99 mL Volume of Na2S2O3 Trial #1 Trial #2 Final burette reading 13.40 mL 25.78 mL Initial burette reading 0.03 mL 13.37 mL Milliliters of Na2S2O3 used
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YOUR NAME: Erin Alston‚ Kennedy Stuart‚ Amber Lamb and Stephonya Williams EXPERIMENT TITLE: Oxidation: Cyclohexanone from Cyclohexanol by Hypochlorite Oxidation and Adipic Acid from Cyclohexanone DATE: 4/18/2014 INTRODUCTION: In experiment 4‚ alcohol is oxidized to a ketone with household bleach. The product is then isolated by steam distillation and is extracted into the distillate with ether. After the removal of ether‚ it leaves the product cyclohexanone. In experiment 6‚ cyclohexanone is
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2. Problem from SAKUNTALA DEVI ’PUZZLES TO PUZZLE U’. Problem no: 23( Walking back to happiness.) The walking time : 55 mins. 1. There are twelve consecutive flags at an equal interval of distance. A man passes the 8th flag in 8 seconds. How many more seconds will he take to pass the remaining 4 flags ? 2. A person has to cover the fixed distance through his horses. There are five horses in the cart. They ran at the full potential for the 24 hours continuously at constant speed and then two of
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Puzzle: A game‚ toy‚ or problem designed to test ingenuity or knowledge. Fore : In front Suppress: Hold back‚ Contain Cursory: Superficial….Performed with haste and scant attention to detail: a cursory glance at the headlines. Hunch: Guess‚ Feeling Offender: Criminal‚ Lawbreaker Jerk : A quick‚ sharp‚ sudden movement. Poker Face: An impassive expression that hides one’s true feelings. Reveal: Expose Flare: Burn‚ Flame Abrasiveness: Harshness: the roughness of a substance that causes abrasions
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Puzzle 1: Only for the brave‚ this one! This square has eleven letters missing‚ which you have to replace: Every row‚ column AND the main diagonals contain all the letters in the word "BRAVE". That reminds me‚ I must see the Postman about all those missing letters. Our Solution: Puzzle 2: Given only one of each letter in the alphabet‚ what are the smallest and largest numbers that you could write down? Our Solution: Using only one of each letter in the alphabet‚ you can
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Geometry Puzzles Problem 1 (But first‚ one last logic puzzle). Suppose that you are a prisoner‚ and you are confronted with two doors: one leading to freedom‚ and one leading to the executioner’s chamber‚ but you don’t know which is which. A sentry guards each door. You know that one sentry always lies‚ and one sentry always tells the truth. Again‚ you don’t know which is which. You are allowed to ask one of the sentries one question. What is a question you ask a sentry that will tell you with
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Name: Date of experiment: 04/02/12 Date of report: 04/03/12 Title: Oxidation – Reduction Activity Series Purpose: To determine relative oxidizing and reducing strengths of a series of metals and ions. Oxidation and reduction reaction occur simultaneously side by side. A reduction reaction occurs only if an oxidation reaction occurs and vise-versa. Electrons are given in oxidation while in reduction electrons are gained. Oxidizing agent is a chemical substance which has a large tendency to
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1. Mechanism of oxidation process In an oxidation process of silicon that usually takes place at very high temperature (thermal oxidation)‚ silicon (Si) reacts with either water vapor (H20) or oxygen (O2) to form silicon dioxide‚SiO2 on the silicon surface. The reaction is represented by following equations: Dry oxidation: Si + O2 → SiO2 Wet oxidation: Si + 2H2O → SiO2 + 2H2 The oxidation process can be implemented through diffusion
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The Puzzle of Life horizontal rule I was given a puzzle a couple of months ago from a friend of mine‚ it had 1‚500 pieces. I haven’t put together a puzzle since I was a kid. Isn’t it funny how we stop doing certain things when we grow up: puzzles‚ coloring‚ playing dolls‚ hop scotch‚ hide and go seek. Things that brought us so much joy as a child‚ we stop doing when we reach a certain age - it’s a shame‚ isn’t it? I must admit‚ I really enjoyed the puzzle. Although very frustrating at times
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potassium permanganate solution was titrated thrice to give clear Mn2+ with an analyte of acidified FeSO4 until all the Fe2+ in the solution was oxidized to Fe3+. The color of the MnO4-/Mn2+ was used as the indicator for the titration. A balanced oxidation-reduction‚ the molarity/normality of the standards potassium permanganate‚ and the volume of potassium permanganate used allowed the determination of the concentration of the FeSO4. Equipment and Chemicals: Chemicals: * Iron (II) ammonium sulfate
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