If you do not wash all of the Calcium Carbonate out, then the percent yield would be smaller because there is enough calcium carbonate left in the beaker that would have attributed to the final yield.…
My percentage yield was far more than the expected 100%. An explanation would be that there was water left over on the precipitate that added to its extra weight.…
5. Determine the percent yield of NaCl in your experiment, showing all work neatly in the space below. (5 points)…
5. Determine the percent yield of this reaction, showing all steps of your calculation. (3…
still, or the loss of some product due to evaporation during distillation. Infrared spectrum analysis of the product…
Conclusion: During this lab I learn how to do simple and fractional distillation. Although the group I worked with only did simple distillation, I carefully observed how the group that did the fractional distillation. We collected all the results, to have a more precise range on what the results were. One way to produce an error in this process would have been if our procedures were done wrong or reversed or if we placed the compounds in a improper…
The theoretical yield stated above (4.60 g) was calculated by finding the appropriate amount of moles of the substance in a balanced equation (1 mole) and using stoichiometry to find out the number of moles that are in the actual equation with the quantities used. This value came out as 4.60 g and is used for the theoretical yield.…
Percent error: Absolute value (Abs) (actual yield – theoretical yield)/ theoretical x 100% = percent error…
We measured 2.5 mL if 2-methyl-2-butanol into the separatory funnel containing the other portion of solvent-nucleophile medium. To mix, we replaced the stopper and swirled, inverted, and released the pressure multiple times. The layers were allowed to separate and the lower layer was drained along with another small portion to eliminate any contamination. The remaining alkyl halide was drained into a beaker containing 0.5g of sodium bicarbonate and decanted into a ground glass stoppered flask. This sample was then…
The purpose of this lab was to use gas chromatography to determine the relative amounts of the three components of gas products from the dehydration reaction of 1- and 2-Butanol with sulfuric acid and the dehydrobromination reaction of 1- and 2-Bromobutane with potassium tert-butoxide.…
Evaluation: During this experiment, our theoretical value was 3.13, and the actual was 3.14. We were extremely close with our calculations. Our percent error was only .3% which is extremely good considering all the human error that could go wrong within this experiment.…
8. Calculate the percent yield for an experiment in which 5.50 g of SOCl2 was obtained in a reaction of 5.80 g of SO2 with excess PCl5. Use the following equation:…
Afterwards, I divided 339.1584 by 84.007 and got 4.04. Then, I divided 4.04 by 2 and got 2.02. In order to get my percent yield I divided 2.02 by 3.2 plus multiplied that by 100 getting 62.8. Now, when I had started of the experiment, I had…
However, during distillation, the temperature never reached 130 degrees C on the thermometer. The thermometer could have been faulty or it could simply be that the thermometer needed to be place closer to the boiling solution. Because of this, the beakers were never switched out, resulting in one beaker containing alcohol and the ester, and not one for each. Because the final product contains ester and alcohol and not just the ester, the final weight would be more than it should. This results in a percent yield (95.9%) higher than it should be.…
The percent ratio between the theoretical and actual yield is called the percentage yield. It is calculated by taking the actual yield and dividing it by the theoretical yield, then multiplying it by 100%. The goal of a lab is to get as close to a 100% percentage yield as possible because that means no errors occurred during the…