these data to answer questions 1 through 4.On average‚ what percentage of the people in the fifty states and the District of Columbia does not have health insurance? Place your answer‚ rounded to 2 decimal places‚ in the blank. 14.15 Do not use a percent sign. For example‚ 17.76 would be a legitimate entry. Answer Key: 13.00|15.00 | Question 2 of 20 | 1.0 Points | | MATH302_Midterm.xls | 30 KB | The worksheet “Insurance” in the Excel workbook MATH302_Midterm.xls‚ which is attached‚ contains
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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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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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Financial Management Assignment #3 (Due on 11/19) 1. An investment offers $6‚100 per year for 15 years‚ with the first payment occurring one year from now. If the required return is 6 percent‚ what is the value of the investment? What would the value be if the payments occurred for 40 years? For 75 years? Forever? A: 15期年金之PV=(1-1/(1.06)^15)/0.06*6100=59‚244.719 40期年金之PV=(1-1/(1.06)^40)/0.06*6100=91‚782.411 75期年金之PV=(1-1/(1.06)^75)/0.06*6100=100‚380.673 永續年金之PV=6100/6%=101
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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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found to be proportional to one another‚ verifying Ohm’s law. In addition‚ the fact that radiation away from the light bulb is indeed proportional to the fourth power of temperature was observed and again verified through a linear fit graph. The percent error found between the two experimental B values was found to be an average 6%. This showing proving that the experiment was decently accurate. Objective: To measure the relation between voltage and current in a small flashlight bulb; to determine
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2-dibromo-1‚2-diphenylethane | 0.204g | Diphenylacetylene | 0.087g | Theoretical yield | 0.107g | Percent yield | 81.3% | Melting point range of diphenylacetylene | 57- 60°C | Average melting point | 58.5°C | Average literature melting point | 60.0°C | Percent error of melting point | 2.5% | Calculations: Theoretical yield: Limiting reagent (LR) x M.W. (LR) x Mole to Mole ratio x M.W. (product) = Theoretical yield of product. 0.204g 1‚ 2-dibromo-1‚ 2-diphenylethane x (1mol 1‚ 2-dibromo-1
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Stoichiometry of a Precipitation Reaction Purpose: The purpose of this lab is to calculate the theoretical‚ actual‚ and percent yield of the product from a precipitation reaction. Also‚ to learn concepts of solubility and the formation of a precipitate. Procedure: Weigh out your 1.0g of CaCl2-2H20 and put it into the 100mL beaker‚ Add your 25mL of distilled water and stir to form the calcium chloride solution. Next‚ use stoichiometry to determine how much Na2CO3 and put it into a small
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Introduction The objective of this project was to prepare tin tetraiodide through the following reaction: Sn+2I2∆SnI4 and to measure the melting point of tin tetraiodide. Tin tetraiodide was recrystallized after the synthesis. The percent yield and the theoretical yield of tin tetraiodide were calculated. Recrystallization is to further improve the purity of tin tetraiodide. The solvent is carefully chosen to be toluene in order to maximize the recovery of tin tetraiodide during recrystallization
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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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