acid (148.16g/mol) 2.5g/148.16g/mol=0.01687mol Stoichiometry ratio: 1:1 ratio Theoretical yield: Since 0.01687 moles of trans-cinnamic acid therefore following the 1:1 ratio one concludes that 2‚3-dibromo-3-phenylpropanoic acid will be of 0.01687 moles Molar mass = 307.97 g/mol Mass=(307.97g/mol)(0.01687mol)=5.20g Actual yield: Percent yield=actual yield (g) / theoretical yield (g) x 100 % yield = 3.28g/5.20g x100 = 63.08% Discussion This experiment involved the addition of trans-cinnamic
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is very labor intensive for medium to large scale operations. Feed prices can vary drastically due to crop yields‚ gas prices‚ and product demand. After the initial investment of the Proskimmer the costs for producing this feed additive would be minimal. There is opportunity for duckweed to be used more as a feed source in coming years to alleviate increasing demand on corn and soy yields. Analysis According to North Carolina Reasearchers: “Duckweed holds great promise as an alternative feed
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|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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years has a yield of 6%. A 10-year corporate bond has a yield of 9%. Assume that the liquidity premium on the corporate bond is 0.5%. What is the default risk premium on the corporate bond? Maturity = 10 years rtbond = 6% rcbond = 9% liquidity premium = 0.5% rd= r* + IP + DRP + LP + MRP Default Risk Premium (DRP) = 9% - 6% + 0.5% = 2.5% (5-7) Renfro Rentals has issued bonds that have a 10% coupon rate‚ payable semiannually. The bonds mature in 8 years‚ have a face value of $1‚000‚ and a yield to maturity
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Data Collection and Processing Aspect One -2.00grams of Sr(NO3)2 used -2.00grams of CuSO4 -Reactants: Sr(NO3)2 and CuSO4 Trial Mass of Beaker (g) Mass of Beaker with Sr(NO3)2 (g) Mass of Beaker (g) Mass of Beaker and CuSO4 (g) Mass of Filter Paper (g) Mass of Filter Paper and Contents (g) 1 111.08±0.01 113.08±0.01 111.1±0.01 113.1±0.01 1.28±0.01 2.93±0.01 2 111.1±0.01 113.1±0.01 111.23±0.01 113.23±0.01 1.27±0.01 2.98±0.01 3 111.26±0.01 113.26±0.01 111.09±0.01 113.09±0.01 1.27±0.01
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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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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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Corning Glass Company focused on commercial products until the 1960s when it entered the consumer market. One of Corning’s exceptional technologies in this market was Z-Glass. After several successful years of producing Z-Glass at the Harrisburg plant‚ yield output began a steady decline in July 1977. In late 1977‚ a Manufacturing and Engineering (M & E) team from Corning’s corporate staff was assigned to the plant to evaluate the recent declines in productivity. In March 1978‚ the M & E division’s leader
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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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