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 is just like an acid-base reaction. An acid can show
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result of the chemical reaction to be a moisturizer soap. First‚ our main ingredient to make a moisturizer soap is the Broccoli plant and second Fatty acids‚ and there lots of type of oils but we will use only the Coconut oil. Then‚ we will also need a Sodium Hydroxide (NaOH) or also can be called Lye or Caustic Soda. The Lye is dissolve in liquid water and adds into the Coconut oil and your Broccoli too. And when those three different types of ingredient combines together it starts the process called
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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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purpose of this laboratory is to convert benzophenone to diphenylmethanol. This was done by using sodium borohydride to reduce benzophenone. The product was then crystalized from hexanes then using the melting point and IR testing it was possible to characterize it. The melting point range was… Introduction: This lab is possible because of oxidation and reduction reactions. In organic chemistry oxidation is the loss of electron density around a carbon‚ while reduction is an increase in electron density
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aldehydes in the reaction. If no reflective silver surface is seen than that indicates the presence of ketones. Purpose: The purpose of this experiment is to make a reflective surface‚ similar to that of a mirror‚ by means of mixing Silver Nitrate with Sodium Hydroxide and by adding couple drops of ammonia and glucose to that solution. This could potentially form a thin film of metallic silver that coats the interior of a test tube used. Hypothesis: The silver metal will form on the bottom of the test
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19 The scientist who is known as father of modern biology is Aristotle 20 The first person to see a cell under microscope was Robert Hooke 21 The smallest flowering plant is Worffia 22 The four blood groups were discovered by Karl Landsteiner 23 Sodium was discovered by Sir Humphry Davy 24 The atomic number of oxygen is Eight 25 The basic building blocks of proteins are Amino acids 26 The botanical name of the cotton plant is Gossipium Hirsutum 27 An Electroscope is used to Detect charges on a body
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SBI4U - Practice Exam Part A: Multiple Choice 1. When organic molecules are joined together and a water molecule is removed‚ the reaction is called which of the following? A. Dehydration synthesis. B. Hydrogenation. C. Hydrolysis. D. Oxidation. What is a nucleotide composed of? A. Nitrogenous base‚ 6 carbon sugar and a phosphate group. B. Nitrogenous base‚ 5 carbon sugar and a phosphorus group. C. Nitrogenous base‚ 5 carbon sugar and a phosphate group. D. None of the above. Enzymes work as catalysts
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comes first‚ followed by the ’compound’ name of the anion. To find the compound name of an anion‚ replace the end of the element’s name with ’ide’. name of cation + name of anion‚ suffix ’ide’ E.g. NaCl: sodium‚ the cation‚ first‚ followed by chlorine changed with the suffix ’ide’ = sodium chloride If the anion is polyatomic and contains oxygen‚ then the suffix is
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Is Ebola only deadly to the poorest? The whole world is at edge knowing that Ebola is a very lethal virus and it is very tough to treat and cure an infected person. But it has been seen that in countries were level of development is higher and health care is easily reached this disease can be fought. So far‚ every case of an American infected has ended happily‚ most recently Dallas nurse Amber Vinson the second patient to contract Ebola in the US has been discharged from Emory Hospital‚ Ebola-free
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JEET SCIENCE ACADEMY CHOWK AZAM (LAYYAH) TIME 2.5 Hr CHEMISTRY 1st YEAR CH # 1‚2‚9‚10 Marks: 85 G.Super . 1 Name…………………………………………...... Objective ROLL NO. ………………………………. Q.NO.1. Encircle the correct answer? (1×17=17) 1. Atoms of which one of the follelement have independent existance: (A) Flourine (B) Krypton (C ) Oxygen (D) Nitrogen 2.18g glucose is dissolved
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