GITARATTAN JINDAL PUBLIC SCHOOL ROHINI‚ DELHI-110085 ASSIGNMENT – 2 (2013-14) Acids‚ Bases and Salts CLASS Q1. :X SUBJECT : Chemistry What happens when chlorine is passed over slaked lime at 313 K? Write chemical equation of the reaction involved and state two uses of the product obtained. Q2. Write the scientific name and chemical formula of plaster of paris. What happens when water is added to it? Write chemical equation for the reaction and state one property of the product
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of a positive Magnesium ion (Mg+) and two negative Hydroxide ions (OH-) Usage: Milk of Magnesia is used to combat constipation and difficulties resulting from too much stomach acid. Properties: Because it contains hydroxide‚ Milk of Magnesia is able to lower the acidity of the stomach by neutralizing some of the acid. It works as a laxative by drawing in water from the intestines. Common Name: Baking Soda Scientific Name: Sodium Bicarbonate Formula: NaHCO3 Fundamental
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SCH 4U1 FINAL EXAM REVIEW ATOMIC STRUCTURE AND MOLECULAR ARCHITECTURE 1. Describe the wave mechanical model of the atom. 2. Write the ground state electron configuration for Br. 3. Explain why the first ionization energy for Ne is significantly greater than Na. 4. Distinguish between ionization energy and electronegativity. 5. How does VSEPR Theory account for the fact that the bond angle in H2O is less than NH3? 6. Which of the following molecules are polar? Include diagrams
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SN2 reaction 2. To study the method of purification of an organic compound by simple extraction 3. To study the test of identification of alkyl halide Chemicals and Apparatus: ~18.0 g 1-butanol‚ ~20.0 g sodium bromide‚ 15 ml of concentrated sulfuric acid‚ anhydrous magnesium sulfate‚ ~10 ml of 5% aqueous sodium bicarbonate‚ ~1 ml of sodium iodide – acetone reagent‚ 1 ml of bromine in chloroform‚ 1 piece of 100 cm3 round-bottomed flask‚ 1 piece of 50 cm3 of beaker‚ 1 piece of 50 cm3 of conical flask
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Title: Determination of chloride by the Mohr Method Objective: To determine chloride by using Mohr Method. Introduction: The Mohr method is the method used to determine the chloride ion concentration of a solution by titration with silver nitrate. As the silver nitrate solution is slowly added‚ a precipitate of silver chloride forms. Ag+ + Cl- AgCl(s) (Ksp for AgCl is 1.810-10) The chloride ion (Cl-) is an important anion found in solids and solutions. Chloride is the predominant anion
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including heating reaction mixture under reflux‚ extraction using a separatory funnel‚ drying with anhydrous sodium sulfate‚ and refractometry. Experiment Scheme: First‚ we prepared the solvent-nucleophile medium. We combined 44mL 7.7M sulfuric acid with 4.75g ammonium chloride and 8.75g ammonium bromide‚ and we heated the mixture with stirring to dissolve the salts. We put 17mL into a separatory funnel for use in the second reaction‚ and placed the rest into a reflux apparatus for our first
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isoflavones in soy and flavanoids in fruits [2]. To identify this phytochemicals‚ screening must be done. This process includes different methods which are test for pH‚ tannins and phenolic compounds‚ glycosides‚ reducing substances‚ alkaloids‚ plant acids‚ saponins‚ unsaturated stearols and triterpenes‚ flavones/ flaonols‚ flavonoids‚ and for carbohydrates. Prior to screening‚ sample would be obtain from the leaves of Mangifera indica L. (Fam. Anarcadiaceae)‚ mango in common term. Water extraction will
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LAB REPORT Group: 6 Section: Group member: Phạm Thanh Thủy ID: BTARIU12005 Course name : GENERAL CHEMISTRY LABORATORY Period : 2012-2013 Date performed : 11-03-2013 Date submitted : 02-05-2013 INSTRUCTOR’S NAME : Hoàng Lê Sơn EXPERIMENT 1: CHEMICAL REACTIONS I. INTRODUCTION – OBJECTIVES In this first experiment‚ we will perform 8 chemical reactions and 1 flame test in order to determine 2 things : a) firstly‚ we can know
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In order to determine which solution has protein in it. The chemical that test positive for Biuret will have a violet color. The color caused by the reaction of peptide bonds in the protons or peptides. The presences of free amino acids will not give you the violet color. With the seven test tubes of Different chemicals‚ add ten drops of (koh). The egg albumen is expected to have to violet
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a) What other name(s) does this chemical go by? (i.e. synonyms) Other names for sodium bicarbonate are baking soda‚ sodium hydrogen carbonate‚ and carbonic acid sodium. (b) What is the type(s) of hazard associated with this chemical? (i.e. poisonous‚ biohazardous‚ ...) According to the Globally Harmonized System (GHS) of Classification and Labeling of Chemicals‚ sodium bicarbonate has not been categorized as hazardous. (c) What should you do if this chemical splashes in your eyes or is spilled
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