health. The purpose of this experiment is to extract and find quantitative amount of Beta-carotene from a carrot sample. The raw product(carrots) was extracted using simple distillation. The purity of the product will be characterized using percent yield‚ thin layer chromatography‚ Beer’s Law‚ and UV-vis. Beer’s law is used because in this experiment we are comparing our extraction of B-Carotene to the Stock B-Carotene. Beer’s law shows that absorbence of light at a specific wavelength is proportional
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PR OCEDURE Before beginning‚ set up a data table similar to the Data Table: Experiment Results in the Lab Report Assistant section. This experiment will create a reaction of sodium carbonate and calcium chloride dihydrate to produce a precipitate of calcium carbonate. This formula is: Na2CO3(aq) + CaCl2. 2H2O(aq) à CaCO3(s) + 2NaCl(aq) + 2H2O 1. Put on your goggles. 2. Weigh out 1.0 g of CaCl2·2H2O and put it into the 100-mL beaker. Add 25 mL of distilled water and stir to form the calcium
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Lab Report 1 Friedel-Crafts Alkylation of Benzene and Dimethoxybenzene Objective: 1. To understand the general process‚ reaction and limitations of Friedel-Crafts Alkylation in regards to Dimethoxybenzene 2. To apply the reaction of Friedel-Crafts Alkylation to dimethoxybenzene Chemical Index: Chemical Structure Molecular Weight Melting Point Boiling Point Acetic Acid C2H4O2 60.05 g/mol 16-17°C 118-119°C T-Butanol C4H10O
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reaction 2Al + 2CuCl₂ → 3Cu + 2AlCl₃ we carried out this experiment and determined that the limiting reactant was CuCl₂ and that the aluminum was in excess. We also determined the percentage yield of copper. Purpose: The purpose of this experiment was to determine the limiting reactant and percentage yield of the reaction that took place between Copper (ll) Chloride and Aluminum. Hypothesis: 2Al + 3CuCl₂ → 3Cu + 2AlCl₃ m= 0.25g m=
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the experiment‚ a yield of 0.21 g of a pure white crystal were collected from the Buchner funnel‚ and when compared to the calculated theoretical yield‚ 0.82 g (found in Calculations 1.A)‚ a percent yield of 25.4% can be calculated for this procedure. Although this value may not seem favorable for this procedure‚ when compared to the expected value described by the laboratory manual‚ which was 0.4 g‚ it can be seen that the procedure performed better than the current percent yield may illustrate. The
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moles of hydrogen gas collected. (4 points) n = [pic] 4. If magnesium was the limiting reactant in this lab‚ calculate the theoretical yield of the gaseous product. Show all steps of your calculation. (4 points) 5. Determine the percent yield of this reaction‚ showing all steps of your calculation. (3 points) Percent Yield = [pic] × 100 Conclusion: 1. Would the following errors increase‚ decrease‚ or have no effect on the calculated moles of gas collected
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Germany‚ Japan‚ and The U.S. and decrease imports into Latin America‚ Asia without Japan‚ and Mexico. 5. The analysis has assumed that each plant has a 100 percent yield (percent output of acceptable quality). How would you modify your analysis to account for yield differences across plants? To change the percentage yield‚ BioPharma‚ Inc. need to desert
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When comparing the theoretical yield versus the actual yield‚ the results obtained deviated slightly from what was expected; the percent yield was 81.53% and approximately one gram of product was lost. Steps that most likely resulted in loss of product could be due to volatility of the product. The experiment required several transferring methods causing the products to be exposed to air and allowing evaporation when it was not covered. The literature boiling point for 4-methylcyclohexene is 101-102
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The pieces concentrate on the relationship between biological systems and changing architectural design approaches and methods through their history‚ method and development. In his article Bioconstructivisms‚ Detlef Mertins focuses on the relation of emerging approaches for architectural design in the last century to the explorations and new understandings in science. Addressing Otto’s design on complex and dynamic curvature structures and showing a beginning for a kind of new era; the writer
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m& Practice Questions: Time Value of Money (TVM) & Its Applications in Investments 1. Jose now has $500. How much would he have after 6 years if he leaves it invested at 5.5% with annual compounding? a. $591.09 b. $622.20 c. $654.95 d. $689.42 e. $723.89 N 6 I/YR 5.5% PV $500 PMT $0 FV $689.42 2. How much would $5‚000 due in 25 years be worth today if the discount rate were 5.5%? a. $1‚067.95 b. $1‚124.16 c. $1‚183.33 d. $1‚245.61 e. $1‚311.17
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