Tripoli Campus Chem 200 Lab Report Experiment 6 : Redox titration Course Instructor: Dr Lisa Diab Student Name: Marwa Noaman ID: 51230262 Introduction: To determine a substance analytically‚ oxidation- reduction reactions are used. During any redox reaction transferring of reactions occurs from a reducing agent to an oxidizing agent. Purpose: * To titrate "Mohr’s salt" solution with KMNO4‚(second standard) which has to be standardize with oxalic acid (first
Free Oxidizing agent Potassium permanganate Carbon dioxide
9 Oxidation and reduction A complete set of fully worked solutions is contained in the Chemistry for WA 2 Solutions Manual. Review Exercise 9.1 1 a Redox reaction b Not a redox reaction c Redox reaction d Redox reaction 2 a Oxidation: Fe(s) Fe2+(aq) + 2e– Reduction: Ag+(aq) + e– Ag(s) Overall equation: Fe(s) + 2Ag+(aq) Fe2+(aq) + 2Ag(s) b Oxidation: Mg(s) Mg2+(aq) + 2e– Reduction: Cu2+(aq) + 2e– Cu(s) Overall equation: Mg(s) + Cu2+(aq) Mg2+(aq) + Cu(s) c No reaction.
Premium Electrochemistry Electrolysis Nitrogen
VIHS/ Department of Chemistry Chemistry Revision Unit II (Edexcel) (01) a) When lithium nitrate and sodium nitrate are heated separately‚ both decompose giving oxygen gas as one of the products. (i) Which of these two nitrates would decompose at the lower temperature? .........................................................………………………………………….................... (ii) Give the name of any other product formed when sodium nitrate is heated. .....................................................
Premium Alcohol Sodium Iodine
ionic bonds in an ionic compound such as sodium chloride‚ arranged in giant lattice structures. Ionic compounds have very strong bonds and a lot of energy is required to break them‚ meaning they have high melting and boiling points. Oxidation and Reduction Oxidation: the gain of oxygen from a
Premium Atom Ionic bond Hydrogen
indicator [5]. Reduction-oxidation titrations involving iodine were classified mainly into two; Iodimetry and Iodometry. Iodimetry was a direct method involving only one reaction between the titrant and the analyte [6]. ( )( ( ) )( ( ( ) ) ) In Reaction 1‚ the analyte of unknown concentration was titrated against the standard Iodine solution. It reduced the titrant‚ Iodine (I2)‚ into Iodide; while the titrant acted as oxidizing agent to the analyte. The reduction of iodine
Premium Iodine Oxidizing agent
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
Premium Titration Chlorine
4. Start timing until the color disappear Results and Discussion: The fastest concentration of glucose to react with oxidation-reduction is the 1.0% concentration while the slowest to react is 0.1% concentration. Conclusion: I have therefore conclude that the higher the concentration of glucose‚ the faster disappearance of colour indicating the oxidation-reduction reaction. Questions: 1. Identify the possible source of error in the activity. a. Contamination that will alter the
Premium Laboratory glassware Carbon Chemistry
CHEM 2325 Organic Chemistry II Handout #1A – Alcohols 1) What type of orbital do the lone pair electrons on oxygen occupy in ethanol? A) σ B) π C) p D) sp E) sp3 2) Provide the structure of the major organic product in the reaction below. 3) Provide the structure of the major organic product in the reaction below. 4) Provide the structure of the major organic product in the reaction below. 5) Provide the structure of the major organic product in the reaction
Premium Alcohol Oxygen
/ Partner’s Name: Eyad Aridi Instructor’s Name: Dr Juliana El Khoury Date of experiment: 10/3/2013 Redox Titration Objective: • To learn some technique in volumetric analysis: Redox titration. • To review the stoichiometry of an oxidation-reduction reaction. • To practice the titration technique. • To determine the concentration of an unknown sodium oxalate (Na2C2O4) solution by titrating it against standardized potassium permanganate solution (KMnO4). Principle: Redox reaction
Premium Titration Oxidizing agent Potassium permanganate
Link reaction- the conversion of the 3-carbon pyruvate molecule into carbon dioxide and a 2-carbon acetyl co-enzyme A molecule. No ATP is produced during this stage. 3) Krebs cycle- the introduction of acetyl co-enzyme A into a cycle of oxidation-reduction reactions that yield some ATP and a large number of electrons. 4) Electron transport chain (ETC) - electrons used from Krebs cycle to synthesise ATP with water produced as a by-product. Glycolysis is the initial stage of aerobic respiration
Free Cellular respiration Adenosine triphosphate Photosynthesis