|1.5044 |-- | |Co(acac-NO2)3 |0.3510 |182-187 | Percent Yield Calculations: • Balanced Equations Cu(NO3)2·3H2O + 2 C4H6O3 ( Cu(C2H3O2)2·3H2O + 2 C2H3O2NO2 2/3 Co(acac)3 + 2 C2H3O2NO2 ( 2/3 Co(acac-NO2)3 + 2 C2H3O2 • Moles of reagent used - Cu(NO3)2·3H2O‚ MW: 241.59 g/mol [pic] - Acetic anhydride
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Surface Water Pollution Freshwater makes up less than three percent of earth’s water‚ but is the source of virtually all drinking water.55 percent of that water comes from reservoirs‚ rivers‚ and lakes‚ These sources‚ called surface water‚ are vulnerable to pollution discharged out of pipes and precipitating out of the air but the primary source of their pollution today is runoff‚ pollutants washing off the land. These nonpoint or scattered sources are not easily traceable. fertilizers used
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Temperature: (122.2+126.1)/2 = 124.15 °C Average MP Range: 120.75 - 124.15 °C Actual MP of Benzoic Acid: 122.4 °C (Fisher Scientific MSDS #02720: Benzoic Acid) Discussion: The results of the experiment show a percent yield of 34.34% for the first trial (Part A)‚ and a percent yield of 84.0% for the second trial (Part B). The methods for both trials were generally the same‚ so the large difference is attributed to the fact that the beaker broke before the gravity-filtering step in the first trial
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Title: Preparation of Cyclohexene from Cyclohexanol Aim: To prepare an alkene‚ cyclohexene‚ by the dehydration of an alcohol‚ cyclohexanol‚ and better understand the processes that take place during this reaction. Introduction: One of the common ways of preparing an alkene is through the dehydration of an alcohol. In this experiment cyclohexanol is dehydrated to prepare cyclohexene while using sulfuric acid as a catalyst. A bromine test can be later done to ensure that the end product is
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CHAPTER 3 PRESENTATION OF CHARTS Quarter 2 – Year 1 Table 2.1 RATIOS OCC % ADR REVPAR TREVPAR GOPPAR ROE Forecast Q2 Y1 68.63% 121 66 210 NA NA Actual Q2 Y1 71.27% 146 104 160 52 NA Forecast Q2 Y2 81.36% 221 159 260 NA NA Actual Q2 Y2 76.69% 238 148 206 87 NA Var. % Y2 -4.67% +7.69% -6.92% -26.21% NA NA Actual YTD Y2 76.69% 238 148 206 82 Table 2.2 Progression Q2 MARKET Indexes OCC Index ADR Index RevPAR Index Apr 01 1.05 0.89 0.94 May-01 1.09 0.90 0.98 Jun-01 1.09 0.90 0.98 Apr 02 1.11 1.01
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Intro: Surface Area and Volume Multiple Choice Identify the choice that best completes the statement or answers the question. Find the surface area of the space figure represented by the net. ____ 1. 12 in. 4 in. 6 in. 4 in. 4 in. 6 in. a. 288 in.2 ____ 2. b. 144 in.2 c. 240 in.2 d. 288 in.2 5 cm 5 cm 7 cm 8 cm 4 cm ____ a. 124 cm2 b. 110 cm2 c. 150 cm2 d. 164 cm2 3. Find the surface area of the cylinder. Use a calculator. Round to the nearest tenth. 4m 3m a
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Buchner funnel‚ the crystals were collected and washed in three 4-mL increments of 95% ethanol. The tetraphenylcyclopentadienone was then place in an oven for 15 minutes to dry. The final product was then weighed in order to calculate the percentage yield. Using a small amount of the product‚ the melting point was also determined. 5 Data: Name: Formula: Molecular Weight: (g/mol) Amount: (Collected) Moles: Density MP: (oC) BP: (oC) Hazards: Benzil (s) C14H10O2
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Limiting Reagent and Percent Yield Aim To determine the limiting reagent between the reaction of lead (II) nitrate and potassium iodide. To determine the percent yield of lead (II) iodide. Date Started: 13/4/12. Finished: 19/4/12. Data collection and processing Measurements: * Amount of distilled water: 75.0ml ± 0.5ml. * Mass of watch glass: 31.65g ± 0.01g. * Mass of watch glass + potassium iodide: 32.45g ± 0.01g. * Mass of potassium iodide: 0.8g ± 0.02g. * Mass of watch
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SuperHydrophobic Surface Fabrication The research plan must include the following: I. Statement of the Problem/s: This study aims to Specifically answer these questions: 1. What chemicals or substances would be effective to use? 2. Where else can we apply the monolayer‚ other than plastic‚ using the same procedures? 3. How long will this effect last? 4. What liquids can it repel besides water? II. Hypothesis: a. There is a significant difference in the results using varied
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Fixed Income Securities 1 8. Calculate for each of the following bonds the price per $1‚000 of par value assuming semiannual coupon payments and explain the price-yield relationship based on your results. |Bond |Coupon Rate |Years to Maturity |Required yield | |A
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