…………………………………………………………………………. 12 Chemical Changes Experiment 3 …………………………………………………………………………. 15 Classification of Matter Experiment 4 ………………………………………………………………………….17 Chemical Nomenclature: The Language of Chemistry Experiment 5 ………………………………………………………………………….22 Water of Hydration Experiment 6 ………………………………………………………………………….25 Gases Experiment 7 ………………………………………………………………………….27 Oxygen Experiment 8 …………………………………………………………………………
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School of chemistry and physics @ PMB Department of chemistry Inorganic Chemistry (CHEM310) August 23‚ 2013 Mncedisi Mazibuko 211506686 Experiment 4 Magnetic Measurements: The Magnetic Susceptibility of Two Iron (III) Compounds Abstract The first compound‚ tris(acetylacetonano)lron(lll) (Fe(acac)3)‚ was synthesized at a yield of 71% and the actual mass of 1.27g and the second compound‚ potassium hexacyanoferrate(lll) (K3[Fe(CN)6])‚ was already synthesized in Mudie Laboratory. The magnetic
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TITLE: THE EFFECT OF HEATING DIFFERENT SUBSTANCES INTRODUCTION: In this exercise‚ it was required to observe carefully what happened when certain substances were heated in a burner‚ and to note the appearance of the residue after heating. AIM: To observe the effects of heating different substances. MATERIALS: Hard glass test tubes Powered samples of Lead (II) nitrate Copper (II) sulphate Ammonium chloride Zinc sulphate Basic copper (II) carbonate‚ CuCO3. Cu(OH)2
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EXAM III CHEM 2211 November 3‚ 2010 NAME: ____________________________________________ Please be certain to answer all questions. Partial credit cannot be given the questions left blank. 1. Give the IUPAC name for the following compound. A) (Z)-2‚3‚6-trimethyl-2-heptene B) (Z)-2‚3‚6-trimethyl-3-heptene C) (E)-2‚3‚6-trimethyl-3-heptene D) (E)-2‚3‚6-trimethyl-2-heptene E) (E)-2‚4‚6-trimethyl-3-heptene 2. Which of the following statements is (are) true about compound A?
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Burning Money Chemistry Demonstration Principle You soak a note in ethanol (alcohol) and it will burn when lighted‚ leaving the note untouched. This is because alcohol is more flammable‚ and burning alcohol causes it to vaporize‚ along with the water present in the solution. This removes heat from the note and prevents it from reaching its combustion point. Materials Bill/Dollar bill (higher denomination if you’re brave) Tongs container Matches or a Lighter Salt (or one of these chemicals
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INTRODUCTION: The purpose of this experiment is to measure the formation constant of the tetraamminecopper(II) ion by colorimetry. Anhydrous copper sulfate (CuSO4) is white‚ which means that it does not absorb light in the visible region of the spectrum. The hydrated copper sulfate (CuSO4 - 5H2O) is blue. The structure of the compound can be represented more accurately as Cu(H2O)4 SO4 - H2O where four water molecules are bound to the copper ion and the fifth is a water of crystallization. The
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make sure the meniscus is right on the line 5. Next pour the AgNO3 into the 100 mL volumetric flask from the weigh boat 6. Then add the remaining 28 mL of water to make the 0.5M solution of AgNO3 7. Swirl the solutions to make sure the salts are fully dissipated‚ also making sure no liquid spills 8. Make sure to label a beaker to a specific mass‚ beaker #1 should be the .25 grams of Barium Chloride and so on 9. Use one pipet to pick up 25 mL of the Barium Chloride solution and
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Chemistry design: Fuel energy lab Research question: What is the energy density of cyclohexane‚ and how does it compare to the energy density of normal hexane? Variables: Independent variable – The independent variable in this experiment will be the type of fuel that will be used. This will be either Hexane or Cyclohexane. Each type will be given to us and labelled so it will be quite simple to control this variable. This cannot be measured using any apparatus so the lab assistant must be entrusted
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The Titration of a Basic Solution of Unknown Molarity with a Standard Hydrochloric Acid Solution Abstract The aim of the experiment was how to determine the molarity of a solution. My hypothesis was if I have to determine the molarity of a NaOH solution‚ then I would have to use a standard solution of HCl solution because I would need to neutralize each other to determine the concentration of the solution of NaOH. The method that I used for this experiment was titration. Titration helped
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Subject: Chemistry SL Title: Preparation of a salt (lead iodide) by using precipitation method. Aim: To produce 1.50 g of lead iodide‚ PbI2‚ assuming 100 % conversion‚ using 1.00 g solid potassium iodide‚ KI‚ and 0.1 M lead nitrate‚ Pb(NO3)2 solution of volume 30 cm3 and hence calculate percentage yield. Calculations: 2KI(s) + Pb(NO3)2( aq) —> PbI2 (s) + 2KNO3 (aq) Mass of PbI2 to be produced = 1.5 g Moles of PbI2 = = 0.003 Moles of KI = 0.003*2 = 0.006 Mass of KI = 0.006*166 = 1.00 g
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