actual yield) Step 11: Show the calculation of the theoretical yield of calcium carbonate. The mole ration between CaCl2-.2H2O and CaCO3 is 1:1 that means that if we have 0.00680 moles of CaCl2-.2H2O we will get 0.00680 moles CaCO3 Convert the moles of CaCO3 to grams of CaCO3 = 0.00680 moles CaCO3 x 100 g CaCO3 1 mole CaCO3 = 0.68g CaCO3 Show the calculation of the percent yield. = Actual yield/Theoretical
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Mass of filter paper and dry calcium carbonate __1.5_g Net mass of the dry calcium carbonate __0.5__g (This is the actual yield) Step 11: Show the calculation of the theoretical yield of calcium carbonate. 0.00680 moles CaCO3 x 100 g CaCO3 1 mole CaCO3 = 0.68g CaCO3 Show the calculation of the percent yield. Actual yield/Theoretical yield x 100 (0.5/0.68) x 100 = 73.5% Conclusion: The objectives of this experiment are to predict the amount of product
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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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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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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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Calculator Calculate Percent Difference of Retail Sales Do you need to know how much retail sales were up or down compared to last year’s sales figures? That is put the two sales amounts in the calculator below to determine the percent increase or decrease in sales. For example‚ if ABC sales were $5200 this year and last year they were only $3400‚ the percent increase in sales was 52.94 or rounded to 53%. Previous Sales Amount #1 Current Sales Amount #2 Percent Increase / Decrease
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in 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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overall 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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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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