Environmental Council of Zambia National Solid Waste Management Strategy for Zambia September 2004 TABLE OF CONTENTS List of Tables Abbreviations 1.0 iii vi 1 vii Acknowledgements Introduction to the strategy 1.1 BACKGROUND .................................................................................................................................................. 1 1.2 THE OPERATIONAL LEGAL AND REGULATORY FRAMEWORK OF THE STRATEGY ........................................
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cylinders and the copper wire‚ the mass of the metal cylinders and calculate the densities of the cylinders and comparison with the acceptable values. MATERIALS 1. Triple- beam balance 2. Micrometer 3. A ruler (inches and centimeters) 4. A roll of copper wire 5. Wire Cutter 6. Vernier Caliper 7. Electronic balance (to measure mass of copper wire) 8. Graduated Cylinder 9. Three cylindrical metals (brass‚ aluminum‚ copper‚ zinc‚ etc) 10. Irregular object (lead‚ steel‚ zinc‚ etc)
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Chromatography of Commercial Analgesics Chromatography of Commercial Analgesics CHEMISTRY 200L EXPT 4 PAGE 8 - 11 CHEMISTRY 200L EXPT 4 PAGE 8 - 11 Janna Vernice R. Villalon*‚ Christian V. Villanueva‚ Cyd Vincent L. Zamora Department of Chemistry‚ College of Science *Corresponding author; e-mail: janna.villalon@rocketmail.com Abstract In analyzing the chromatography of analgesics‚ thin layer chromatography (TLC) was used. A very thin (micron) film of silica is coated on a glass
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Section 1 As a member of Group 2‚ we were investigating why the liquids Ethanol‚ Propanol‚ Water‚ Pentane and Acetone evaporate at different rates. Methanol and Butanol were not liquids investigated by our group‚ but collectively as a class we were able to record averages of rates of evaporation. Solvent Molecular Formula Boiling Point (C°) Polar or Nonpolar Intermolecular Force(s) Lewis Dot Structure Methanol CH4O 64.7 Polar Hydrogen Bonding Dipole-Dipole London Dispersion Ethanol C2H6O 78.37
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service-based city due to the massive developmental activities of Iskandar Malaysia project city plan. However‚ the rapid development in Johor also indicated that the generation of solid waste will increase significantly. For this reason‚ Abba et al. (2013) conducted a case study to assess the environmental impacts of municipal solid waste of Johor by analytical hierarchy process. The assessment is conducted in the city of Johor Bahru which involved Municipals of Johor Bahru Tengah‚ Johor Bahru municipal
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solution it was placed in. Bag #1’s solution was hypotonic compared to the solution of beaker #2. Bag #2’s solution was also hypotonic compared to the solution of beaker #2. Bag #3’s solution was isotonic compared to the solution of beaker #2 and Bag #4’s solution was hypertonic compared to the solution of beaker #1. 2. Which bag increased the most in volume? Why? Bag #1 increased the most in size because the solution inside was of a higher concentration of sucrose than that of Beaker #2 so therefore
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Introduction: The importance of this lab is to get a deeper understanding of how the concepts of solutions and insolubility applies to the lab’s purpose of making chalk using precipitation reactions. A precipitation reaction is when a solid/ precipitate (insoluble) is formed when two solutions that contain soluble salts are combined. Some additional scientific concepts investigated in this lab are insolubility‚ double replacement‚ and limiting reactants. Insolubility occurs when a solute is incapable
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To make careful measurements of the amounts of each reactant. 2. To calculate the number of moles of each reactant. 3. To predict which reactant is in excess. 4. To use drawings to relate microscopic events‚ to write a chemical equation that represent those microscopic events. 5. To learn how to measure the volume of a liquid using a buret. Prelab Questions: 1. Calculate the number of moles in 2.65g of zinc. 2. Calculate the number of moles of hydrochloric acid in 37.5mL of
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Unit 2 Home Labs Goals: • Read Safety • Perform Changes: Physical or Chemical Lab • Perform Special Physical Properties of Matter Lab • Perform Paper Chromatography Lab Turn-in: 1) Changes: Physical or Chemical Lab - Completed Procedure / Observations‚ questions‚ and a written description of most important concept that you learned in the discussion section. 2) Special Physical Properties of Matter Lab – Completed Procedure / Observations‚ questions‚ and
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9Steps to Babysitting an Infant If you’re babysitting a child in his or her first year of life and who hasn’t learned to walk yet‚ it’s not the same as taking care of a toddler or an older child. Infants are very fragile and require special attention and care. Step 1: Have a fill in form ready for the parents. It should include parent emergency contact info‚ what to feed the baby‚ the baby’s allergies‚ and other stuff you should know in case of an emergency. Step2: Make sure the baby
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