IB Chemistry SL 2013-2015 Taewoong Moon Oxidation- Reduction Reactions- Design Lab Experiment Question: In oxidation-reduction reactions‚ or redox reactions‚ are strengths of reducing and oxidizing agents different from each reaction? Theory of an experiment: 1. Determine the relative strengths of oxidizing agents and reducing agents. 2. Study some simple oxidation-reduction reactions Hypothesis: Relative strengths of reducing and oxidizing agents differ from each reaction. Background Information:
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Name____Shelby Bill__________________ BIO 236 Nutrition Ch. 18 1. Define… Nutrition- Study of the sources‚ actions‚ and interactions of nutrients. macronutrients- A nutrient (carbohydrate‚ lipid‚ and protein) required in a large amount. micronutrients- Nutrient (vitamin or mineral) required in small amount. 2. Nutrients that cannot be synthesized by humans‚ like some amino acids‚ are called ______essential___ nutrients. 3. List the 6 types of Vegetarian diets‚ including food restrictions
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Stage 1: Oxidation to methyl ketone oxidation half-equation: RCH(OH)CH3 RCOCH3 [O already balanced] RCH(OH)CH3 RCOCH3 + 2H+ [balance H atoms] RCH(OH)CH3 + 2OH- RCOCH3 + 2H+ + 2OH- [add OH- to remove H+] RCH(OH)CH3 + 2OH- RCOCH3 + 2H2O + 2e ----- (1) [balance the charge] reduction half-equation: I2 + 2e 2I- ----- (2) Combine equations 1 and 2: RCH(OH)CH3 + 2OH- + I2 RCOCH3 + 2H2O + 2I- [equation for Stage 1] Stage 2: Oxidation to carboxylate
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test‚ bromine test and basic oxidation test were conducted to fully differentiate each type of hydrocarbon from one another. Nitration tests resulted to three positive outcomes and two negative outcomes. A positive outcome in the nitration test shows that the hydrocarbon is aromatic while a negative outcome is aliphatic. In the bromine test‚ the results showed that there is one saturated aliphatic while the other is unsaturated aliphatic. In the last test (basic oxidation test)‚ all five hydrocarbons
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CHAPTER 4 REACTIONS IN AQUEOUS SOLUTION MULTIPLE CHOICE QUESTIONS 4.1 Which of the following compounds is a strong electrolyte? E A. H2O B. O2 C. H2SO4 D. C6H12O6 (glucose) E. CH3COOH (acetic acid) Answer: C 4.2 Which of the following compounds is a strong electrolyte? E A. H2O B. N2 C. KOH D. C2H6O (ethanol) E. CH3COOH (acetic acid) Answer: C 4.3 Which of the following compounds is a weak electrolyte? E A. HCl B. CH3COOH (acetic acid)
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precipitation by preparing a copper (II) complex by reacting hydrated copper (II) sulfate with ammonium peroxodisulfate in the presence of pyridine. This same ability‚ coupled with its strong oxidizing ability allowed for stabilization of the unusual oxidation state of 2+ for silver which was observed by preparing an analogous silver (II) complex by reacting silver (I) nitrate with ammonium peroxodisulfate in the presence of pyridine. IR spectra for the three products were obtained‚ as well as qualitative
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Analysis of Commercial Bleach Lab I. Purpose In this experiment‚ the amount of sodium hypochlorite in a commercial bleach will be determined by reacting it with sodium thiosulfate in the presence of iodide ions and starch. A solution of sodium thiosulfate of known concentration will be added to the bleach using a buret in a titration procedure. The disappearance of the dark blue color of the starch-iodine complex will signal the end point. II. Procedures Pre-Lab Questions 1. What is
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CH4 Prokaryotic Cells No nucleus Plasma membrane Selective permeability lets molecules pass. Enzymes for ATP production. Photosynthetic pigment on folding (on chromatophores or thylakoids). Leakage occurs if damaged by alcohols‚ ammonium‚ and polymyxin antibiotics. Phospholipid bilayer‚ peripheral proteins‚ integral protein‚ transmembrane protein‚ sterols‚ glycocalyx Movement across Membranes Simple diffusion: Movement of solute from high concentration to low Facilitative diffusion: Solute
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Conclusion 8 References 9 I. Introduction: Oxidation Reduction reactions are chemical reactions in which substances undergo changes in oxidation state. Oxidation is defined as the loss of electrons (or an increase in oxidation state) and reduction as the gain of electrons (or a decrease in oxidation state). In acid base titrations‚ equivalent amounts of acid and base must be used for exact neutralization at the titration endpoint. In oxidation-reduction reactions‚ there is a similar equivalence
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how the molecular structure affects the chemical properties of the three isomers of butanol. I predict that the primary‚ secondary and tertiary alcohols will undergo substitution reactions‚ but only primary and secondary alcohols will undergo oxidation reactions due to their chemical properties and the theories learned in class. Procedure Three test tubes were placed in a test-tube rack. A clean eye dropper was used for each alcohol and 4 drops of 1-butanol were placed in the first tube; 4 drops
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