SSN COLLEGE OF ENGINEERING DEPARTMENT OF CHEMICAL ENGINEERING V Semester – CH 2307 TECHNICAL ANALYSIS LAB -2010 INDEX SHEET CYCLE ONE Date of Condn. Date of Subn. Sign 1 Estimation of COD of the given sample of water. 2 Estimation of Manganese in the given pyrolusite ore. 3 Estimation of Magnesium by EDTA method. 4 Estimation of purity of drug using pH meter. 5 Estimation of Ammonia in ammonium salts. 6 Polarimetric estimation of sugar
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Performed: 1 Lab Section: Course Instructor: PURPOSE: To identify chemical and physical change in matter. PROCEDURE: Finding out the physical and chemical change in matter. There was seven different substances that were being tested; Mossy Zinc (Zn)‚ Magnesium (Mn)‚ Copper (Cu)‚ Magnesium Oxide (MgO)‚ Copper II Nitrate (Cu(NO3)2)‚ Copper II Carbonate (CuCO3) and Sodium Chloride (NaCl). There were four test tubes set up for the experiment. Each substance was divided amongst the four test
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Grade 11 Chemistry Year End Test Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. The molar mass of copper(II) sulfate pentahydrate‚ CuSO4.5H2O‚ is a. 245.6 g/mol d. 241.5 g/mol b. 177.5 g/mol e. 249.6 g/mol c. 219.2 g/mol ____ 2. A 100.0-g sample of a compound is composed of 16.3 g of carbon‚ 32.1 g of chlorine‚ and 51.6 g of fluorine. The empirical formula of the compound is a. CClF d. C3Cl2F6 b. CClF3 e. C9Cl6F18 c. C2Cl2F6 ____ 3. A
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Araldite® bonding Surface preparation and pretreatments Working directions for the surface preparation essential for optimum adhesion between structural materials bonded with Araldite® adhesives. Araldite® adhesives form extremely strong and durable bonds with plastics‚ metals‚ glass‚ rubber and many other materials. Designers in every sphere of industry increasingly find that bonding with Araldite® provides the answer to production problems posed by new materials‚ new uses of existing materials
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including hydrogen-1‚ known as protium‚ hydrogen-2‚ deuterium‚ and hydrogen-3‚ tritium. The first isotope if the most abundant one‚ while the third one is the least. Henry Cavendish‚ an English scientist who developed hydrogen by mixing zinc along with hydrochloric acid‚ first identified it as a distinct element in1766. However‚ Antoine Lavoisier‚ a French scientist‚ named it in 1783. The name came from the Greek word “hydro”‚ which means water and “genes” meaning forming since it is one of the two
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Digestion is a process in which the food that we eat is broken down into tiny nutrients to be taken in by the body. Within the human digestive system‚ chemical and physical reactions occur that allow for the digestion and the absorption of proteins into the bloodstream. The purpose of this paper is to show how chemistry relates to the daily functions within the body. There are two types of digestion processes‚ which are called mechanical and chemical digestion. Mechanical digestion includes the
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Vial‚ 1/2 Full 1 Copper (II) Nitrate Crystals in vial‚ Copper Metal - 6-8 pc. in bag 2"x 3" 1 Hydrochloric Acid‚ 6 M - 4 mL in dropper bottle‚ 1 Magnesium Metal pieces - 6-8 in bag 2"x 3"‚ 1 Magnesium Oxide powder - 0.5 g‚ 2 pipet‚ empty short stem - labeled "HCL‚" & "NaOH"‚ 1 Sodium Chloride in vial – full‚ 1 Sodium Hydroxide‚ 6 M - 4 mL in dropper bottle‚1 Zinc‚ Mossy - 6-8 Pieces‚ Bag 2"x 3" Procedure: 1. Half-fill one well of a 24-well plate with 6 M HCl
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Cu(NO3)2 c. Na2S and CdSO4 9. Write balanced molecular equations‚ complete ionic equations and net ionic equations for each of the following reactions. All reactants are aqueous. Determine whether the products are aqueous or precipitates. a. Hydrochloric acid ‚ HCl‚ reacts with silver nitrate‚ AgNO3‚ to produce
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Displacement or Substitution Reaction A substitution or single displacement reaction is characterized by one element being displaced from a compound by another element. A + BC ? AC + B An example of a substitution reaction occurs when zinc combines with hydrochloric acid. The zinc replaces the hydrogen: Zn + 2 HCl ? ZnCl2 + H2 Metathesis or Double Displacement Reaction In a double displacement or metathesis reaction two compounds exchange bonds or ions in order to form different compounds. AB + CD ? AD
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| Chapter 10 ComMon Acids and Alkalis 10.1 Acids and Alkalis 1. Acids taste sour. Many fruits contain acids. 2. The three mineral acids commonly found in the laboratory are hydrochloric acid‚ sulphuric acid and nitric acid. 3. Alkalis taste bitter and feel soapy or slippery. 4. The common alkalis found in the laboratory are sodium hydroxide solution‚ potassium hydroxide solution‚ calcium hydroxide solution and ammonia
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