100 mL 2% Starch solution- 3 mL Potassium iodide (KI)- 6g Burette Burette clamp Ring stand Small funnel 6 pipettes 0.0001-g precision balance 3 wash glasses Spatula Rubber spatula 6 125-mL Erlenmeyer flasks Size 2 rubber stopper Stirring rod 10-mL graduated cylinder 25-mL beaker Procedures: 1.) Measure out 5 mL of NaClO into a 125-mL Erlenmeyer flask 2.) Add 95 mL of distilled water to the flask 3.) Mass out 2 g of solid KI 4.) Transfer 25 mL of the diluted NaClO in the flask
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strategies. In Wuthering Heights Catherine couldn’t decide if she wanted Edgar or Heathcliff. She tried to get Edgar to let Heathcliff come over to the house. “She will not choose between Edgar and Heathcliff‚ or tolerate their neglect of her” (Wing-Chi Ki 207). She loved them both‚ but for different things. She says she loves Edgar for his riches‚ but she knows Heathcliff has true love for her as she does for him. So‚ it was hard for her to choose. While talking to Nelly‚ Catherine said: “It
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Stein (1995) states‚ “Human touch conveys warmth‚ serenity‚ and healing” (p. 16). This simple act is the basis for all touch healing techniques. The word Reiki is made of two Japanese words‚ Rei which means "God’s Wisdom or the Higher Power" and Ki which is "life force energy" (www.Reiki.org). It is available to help us in times of need and to act as a source of guidance in our lives. Reiki goes back to the 1800’s and has been kept highly secret for many years. It is an ancient and profoundly
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Inhibition of YADH Aim The aim of the experiment is to investigate the inhibitory effects of acetaldehyde. Principle: According to Palmer (1991)‚ “an inhibitor is a substance decreases the rate of an enzyme catalysed reaction”. The binding of inhibitors normally affects the activity of an enzyme. Enzyme inhibition studies are important because most poisons and drugs achieve their effects by inhibiting cell. Enzyme inhibition is also an important phenomenon in the cell metabolism because allows
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Redox Titration Analysis of a Commercial Bleach Purpose To perform a redox titration. To determine the amount of hypochlorite ion present in commercial bleach. Introduction Many commercial products‚ such as bleaches and hair coloring agents‚ contain oxidizing agents. The most common oxidizing agent in bleaches is sodium hypochlorite‚ NaClO (sometimes written NaOCl). Commercial bleaches are made by bubbling chlorine gas into a sodium hydroxide solution. Some of the chlorine is oxidized
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Title: Redox Reaction Introduction: Some of the most important chemical reactions are Redox reactions. They are also known as oxidation-reduction reactions. This reaction passes one or more electrons from one species to another. The species that loses electrons are being oxidized while the species that gains electrons are reduced. The reaction occurs simultaneously. Numbers are given to each element in a chemical reaction to help us find out which element is oxidized and which is
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|NaOCl + KI|4 |small white precipitate‚ color changed to black after starch was added | | with 1 drop of starch| || G.|KI + Pb(NO3)2|5 |turned bright yellow‚ milky texture| H.|NaOH + phenolphthalein|6 |turned dark pink‚ magenta| I.|HCl + phenolphthalein|7 |clear| J.|NaOH + AgNO3|8 |turned brownish green‚ cloudy| K.|AgNO3 + NH3|9 |turned light brown| |after exposure to bright light| || L.|NH3 and CuSO4|10 |light blue‚ cloudy| Part F: Testing of Various Foods with the NaOCl + KI solution
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Assignment ECV 3001 (24.9.2013/selasa) Why I want to be an engineer? What are the characteristic of a successful engineer? Please include iconic engineer that inspires you. (Write a short essay) I want to be an engineer because of several reasons. For me becoming an engineer means to make something happen and for today‚ I will explain four main reasons why I want to be an engineer. Firstly‚ as we are talking about engineer profession‚ first thing that come up into my mind is money. All of us
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down starch in solutions that are increasing in neutral pH. To do this the experiment was carried out so that tubes containing a reaction solution of the Amylase enzyme and starch were simultaneously mixed. The reactions were then introduced to I2-KI‚ which stopped the reactions‚ at two minute intervals. Each of these trials was repeated three times to ensure proper accuracy. After concluding the reactions they were placed into a spectrophotometer (A580) for analysis. Graphing the values of the
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Break Up Of Marks For Formative Assessment 3 & 4 For Class IX ENGLISH |1. |Monday Test |10 Marks | |2. |Literature based Role Play[ Bishop’s Candlestick] |3 Marks | |3. |MCB based Debate[content‚ Language‚ Pronunciation] |3 Marks | |
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