give rise to precipitation? Tube 1: 5.5mls of (NH₄)₂SO₄ was required to give rise to precipitation. 5.5ml/20ml *100% = 27.5% Tube 2: 6.7mls of (NH₄)₂SO₄ was required to give rise to precipitation. 6.7ml/20ml *100% = 33.5% Tube 3: 5.6mls of (NH₄)₂SO₄ was required to give rise to precipitation. 5.6ml/20ml *100% = 28.0% Tube 4: 6.2mls of (NH₄)₂SO₄ was required to give rise to precipitation. 6.2ml/20ml *100% = 30.5% 1. From the absorbance readings before and after the precipitation‚ calculate
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Week 10: Oxidation and Reduction Reactions: The Reactions of Copper Data: Part I: Preparing a solution of copper (II) nitrate Initial mass of copper wire: .520g Mass of copper wire after vigorously scouring: .518g Observations of Copper (II) ribbon mixed with HNO3: Solution turned green. Thick brown gas formed. Copper (II) bubbled vigorously. Cu (II) dissolved‚ solution appeared green/blue. After the addition of H2O a blue crusty precipitate formed. Part II: Synthesis of solid copper
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Course Title: RADIOGRAPHIC TECHNIQUE AND FILM PROCESSING/ANALYSIS 1 Course Outline: I. Processing Room Design (2 Hours Lec.; 4 Hours Lab.) 1. Size and location 2. Construction considerations 3. Entrances 4. Lighting and ventilation 5. Drainage system II. Imaging Accessories (8 Hours Lec.; 14 Hours Lab.) 1. Radiographic Film 2.1. Types of Films 2.2. Film construction 2.3. Handling and storage 2. Film holders 3.4. Cardboard film holder
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factors affecting the kinetics of reaction between peroxodisulfate (vi) and iodide d. del prado1 and j. belano2 1 department of food science and nutrition‚ college of home economics 2 department of food science and nutrition‚ college of home economics university of the philppines‚ diliman‚ quezon city 1101‚ philippines date submitted: january 7‚ 2013 ------------------------------------------------- ------------------------------------------------- ABSTRACT -------------------------------------------------
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Acid precipitation affects stone in two ways: dissolution and alteration. The calcite dissolves when sulfurous‚ sulfuric‚ and nitric acids in polluted air react with the calcite in marble and limestone. Exposed areas of building and statues develop rough surfaces. Some of the material that makes them up are removed or corroded‚ thus‚ details and carvings are lost. Even sheltered areas of stone buildings and monuments are affected by acid precipitation. However‚ sheltered areas on limestone
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Flatland Reaction Paper Prior to reading this article‚ I never really thought of math to be this universal thing that could be applied over such a large horizon. I was knowledgable that‚ of course‚ everyone and everything could be eventually linked in some way or fashion to mathematics‚ but I was oblivious to how large of a spectrum it all really sits. Overlooking all of the sexist and biased opinions stated by Edwin A.Abott in this piece‚ he really opened my eyes to a different perspective of
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distinctive coloured vapour. (ii) Forms a blue-black complex with starch and in biology the test is used to detect starch with iodine solution. Tests for Halide Ions In test (i) the silver nitrate is acidified with dilute nitric acid to prevent the precipitation of other non-halide silver salts. Test for halide ion Test method Observations Test chemistry and comments Fluoride Ion F- Fluoride and hydrogen fluoride gas are harmful‚ irritating and corrosive substances. (i) If the suspected fluoride is
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DESCRIPTION DEPARTMENT OF SCIENCE AND ENGINEERING 1. Course Number and Title: CHEM-181 General Chemistry I 2. Semester Hours: 4 Contact Hours: (3 + 2) Lecture Lab 3. Catalog Description This course‚ intended for science majors‚ is the first course of a two-course sequence. Course topics include stoichiometry‚ inorganic nomenclature‚ solutions‚ gas laws‚ thermochemistry‚ atomic structure‚ and chemical bonding. The laboratory work includes basic laboratory techniques and is intended
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Israel Science and Technology Homepage Home Search About Contact Bookmark Sort List By Atomic Number Atomic Weight Name Symbol Periodic group‚ Electron configuration Melting point Boiling point Density Ionization energy Abundance in Earth Year of discovery Hebrew Name List of Periodic Table Elements Sorted by Atomic Number Click a column title‚ such as Symbol‚ to sort the table by that item. No. Atomic Weight Name Sym. M.P. ( °C ) B.P. ( °C ) Density* (g/cm3) Earth crust (%)* Discovery
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Running head: A STUDY ON HOW IIUM STUDENTS PERCEIVE THE EFFECTIVENESS 1 A study on how IIUM students perceive the effectiveness of extracurricular activities on building soft skills. ‘Izzati Khairunnisa Binti Nordin 1117368 Imraatul Farihah Binti Bunyamin 1110182 Department on Information Technology Kulliyyah of Information and Communication Technology International Islamic University Malaysia English for Academic Writing LE4000 Section 12 Supervisor: Madam Alina Fazilah Binti Fazi
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