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In the Aspirin Experiment, how do you calcuate percent yield of the target compound and do you determine its identity and purity?
The aspirin experiment is a common laboratory activity in organic chemistry that involves the synthesis of acetylsalicylic acid, or aspirin, from salicylic acid and acetic anhydride. The reaction is a classic example of an esterification reaction and involves the formation of an ester bond between the hydroxyl group of salicylic acid and the acetyl group of acetic anhydride. The aspirin product can be isolated and purified, and its percent yield can be calculated to determine the efficiency of the reaction.
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- = O ORGANIC FUNCTIONAL GROUPS Naming and drawing unsubstituted amides Draw the skeletal ("line") structure of N,N-dimethylethanamide. Click and drag to start drawing a structure. C™ X с S E 1/5 Kir4. In the background reading, it was pointed out that heroin can be produced from morphine in a manner similar to synthesis performed in this experiment. The balanced equation for the synthesis of heroin is given below. How many grams of heroin can be produced by the reaction of 20.00 grams of morphine and 10.00 ml of acetic anhydride? 2 C4H6O3 Acetic Anhydride C17H19NO3 C21H23NO5 2 HC2H3O2 Morphine Heroin Acetic AcidMISSED THIS? Read Section 3.10 (Pages 118 - 123); Watch IWE 3.18. Calculate the empirical formula for each of the following stimulants based on their elemental mass percent composition.
- 4. Assuming no calculation errors, why would a percent recovery > 100% or a percent recovery < 100% be obtained? Give at least one reason for eachUse the following atomic weights and quantities to calculate the overall % yield of benzopinacol. Remember that your yield must be based on the stoichiometry (balance the equation!), the limiting reagent, and that grams must be converted to moles. Filling out most of the chart will help. Give only two significant digits in your answer. If after rounding the answer is a whole number, do not include a decimal point. C = 12, H = 1, O = 16 benzophenone isopropanol acetic acid →>> benzopinacol formula formula weight milliliters 2.093 0.889 density 0.786 1.05 grams moles 38.103 4.214 Answer: % yield ?Use the following atomic weights and quantities to calculate the overall % yield of benzopinacol. Remember that your yield must be based on the stoichiometry (balance the equation!), the limiting reagent, and that grams must be converted to moles. Filling out most of the chart will help. Give only two significant digits in your answer. If after rounding the answer is a whole number, do not include a decimal point. C = 12, H = 1, O = 16 benzophenone isopropanol acetic acid → benzopinacol formula formula weight milliliters density 2.093 0.786 0.889 1.05 grams moles 38.103 4.214 Answer: % yield ? The conversion of benzopinacol to benzopinacolone is called a rearrangement because it does not fit the simple patterns of organic chemistry: substitution, addition and elimination. With that said, select all that apply to this reaction: Ph- OH OH Ph Ph Ph= phenyl -Ph 12 CH3CO₂H Ph Ph Ph Ph Careful to not select incorrect answers or you may receive a negative score! ☐ ☐ a. net increase in pi…
- What is calibration and why is it essential in relation to food analysis? Provide examples.If benzophenone is your limiting reagent and you utilize 0.264 grams, how many grams of triphenylmethanol would be produced if the percent yield was 38%? Please record your answer as a number with 3 decimals. Benzophenone molecular weight: 182.217 g/mol Triphenylmethanol molecular weight: 260.33 g/molAscorbic acid (CoH3O6) is also known as Vitamin C. How many molecules of CH¿O6 does a Vitamin C 9. drink with 1.000 × 10³ mg C6H3O6 contain? STARTING AMOUNT ADD FACTOR DELETE ANSWER RESET *( ) G 176.12 1 88.07 mg 3.419 × 1024 3.419 x 1021 0.001 molec 2.925 x 10-22 2.925 x 10-16 2.925 x 1016 g 2.925 x 10-19 5.68 x 1020 1.000 x 103 mo 6.022 x 1023 5.68 x 10-3 3.419 x 10-2 g/m 6.022 x 1022 2.925 x 1022
- Pounding is a usual technique used in sample preparation. What is the chemical basis why pounding is used in sample preparation? O Pounding allows molecules to be prepared for reaction Pounding breaks the intermolecular forces within molecules Pounding increases surface area leading to faster reaction Pounding allows samples to fit in test tubeIn the background reading, it was pointed out that heroin can be produced from morphine in a manner similar to synthesis performed in this experiment. The balanced equation for the synthesis of heroin is given below. How many grams of heroin can be produced by the reaction of 20.00 grams of morphine and 10.00 ml of acetic anhydride? C17H19NO3 + 2 C4H6O3 C21H23NO5 + 2 HC2H3O2 Morphine Acetic Anhydride Heroin Acetic AcidHow are halogens detected in an organic sample? Describe at least two procedures for detecting halogens and their positive results.
