Acetylsalicylic acid commonly known as Aspirin is used to treat fever, inflammation, and acts as a blood thinning agent. A group of STEM students experimented on the synthesis of this compound technique. The following are the initial materials for the experiment: 5.00 g of pure salicylic acid, 7.14 g of acetic anhydride and 8 drops concentrated sulfuric acid as catalyst. After successful synthesis, the group was able to collect 5.25 grams of Aspirin. (Atomic weights: C= 12 amu; H = 1 amu; O= 16 amu; density acetic anhydride = 1.08 g/mL) using recrystallization Chemical reaction involved: -CH3 -CH3 CH3-C-OH c-OH CH3 E-OH Acetylsaicylic acid (C 9H3O4) Acetic anhydride Salicylic acid (C7H6O3) Acetic Acid (C 4H603) (C 2 H402) Vhat is the theoretical yield of Aspirin in the synthesis experiment? O 2.17 g O 6.52 g O 12.6 g O 13.34 g O None of the above

Acetylsalicylic acid commonly known as Aspirin is used to treat fever, inflammation, and acts as a blood thinning agent. A group of STEM students experimented on the synthesis of this compound technique. The following are the initial materials for the experiment: 5.00 g of pure salicylic acid, 7.14 g of acetic anhydride and 8 drops concentrated sulfuric acid as catalyst. After successful synthesis, the group was able to collect 5.25 grams of Aspirin. (Atomic weights: C= 12 amu; H = 1 amu; O= 16 amu; density acetic anhydride = 1.08 g/mL) using recrystallization Chemical reaction involved: -CH3 -CH3 CH3-C-OH c-OH CH3 E-OH Acetylsaicylic acid (C 9H3O4) Acetic anhydride Salicylic acid (C7H6O3) Acetic Acid (C 4H603) (C 2 H402) Vhat is the theoretical yield of Aspirin in the synthesis experiment? O 2.17 g O 6.52 g O 12.6 g O 13.34 g O None of the above

EBK A SMALL SCALE APPROACH TO ORGANIC L

4th Edition

ISBN:9781305446021

Author:Lampman

Publisher:Lampman

Chapter13: Isolation Of Eugenol From Clov

Section: Chapter Questions

Problem 9Q

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IDENTIFICATION: Acetylsalicylic acid commonly known as Aspirin (C9H8O4) is used to treat fever, inflammation, and acts as a blood-thinning agent. A group of STEM students experimented on the synthesis of this compound using recrystallization technique. The following are the initial materials for the experiment: 5.00 g of pure salicylic acid (C7H6O3), 7.14 g of acetic anhydride (C4H6O3) and 8 drops concentrated sulfuric acid as catalyst. After successful synthesis, the group was able to collect 5.25 grams of Aspirin (C9H8O4) and acetic acid (C2H4O2). Atomic weights: C= 12 amu; H = 1 amu; O= 16 amu; density acetic anhydride = 1.08 g/mL How much of the excess reactant (in grams) will be left unconsumed after the reaction?
A 25 mL liquid bleach sample is diluted with water to 1000 mL in a bubble gel. 25 mL of the diluted sample is transferred to the flask with a pipette, excess KI is added to it, and thus OCl- ion turns into Cl- ion and I2 is formed. The released iodine is titrated with 0.09892 Na2S2O3 using the starch reagent, and 8.96 mL is required for the endpoint. Find the % NaOCl (w/v; w/v) in the bleach sample. (Na=23 g/mol, O= 16 g/mol, Cl = 35.44 g/mol) (Warning: solving the necessary reaction equations by writing is necessary to see the stoichiometric relationship)
A 25 mL liquid bleach sample is diluted with water to 1000 mL in a bubble gel. 25 mL of the diluted sample is transferred to the flask with a pipette, excess KI is added to it, and thus OCl- ion turns into Cl- ion and I2 is formed. The released iodine is titrated with 0.09892 M Na2S2O3 using the starch reagent, and 8.96 mL is required for the endpoint. Find the % NaOCl (w/v; w/v) in the bleach sample. (Na=23 g/mol, O= 16 g/mol, Cl = 35.44 g/mol) (Warning: solving the necessary reaction equations by writing is necessary to see the stoichiometric relationship) A. 0.132% B. 0.264% C. 5.28% D. 10.56%
To synthesize methyl 3-nitrobenzoate, 20 ml of H2SO4 and 10 g of methyl benzoate were used. The nitrating mixture was prepared using 6 ml of H2SO4 and 6 ml of HNO3. Calculate the molar ratio of sulfuric acid to nitric acid
In the molecular weight determination by the Dumas method, several grams of an organic liquid was drawn into a bulb. The bulb was then immersed in a water bath at 87 degrees C and kept there until all the liquid was vaporized and the air in the bulb was replaced by the vapor. The tip was then sealed shut and the bulb removed from the vapor was 36.127g; the weight of the empty (evacuated) bulb was 35.427g; the bulb’s volume was 200.0mL; room temperature was 25 degrees C, and the barometric pressure was 720 mm Hg. Calculate the molecular weight of the organic liquid. Calculate the molecular weight of the organic liquid.
Cassava tuber has a composition of 5.76% moisture, 6% protein, 0.2% fat and 34.3 total carbohydrates, 1.6% fiber and 0.3% ash. Find the composition on dry basis.
1. Which of the following compounds can form hydrogen bonds with water?a. octaneb. HClc. NaCld. acetic acid2. Maria wants to determine the percent water content of an unknown hydrate of AB. Given the following data:mass of empty crucible - 12. 2784gmass of AB · xH20 + crucible - 17.4960gmass of AB + crucible - 15.1314gCalculate the % water content of the hydrate3. From the above data, give the correct formula for the hydrate. (AB₂ Molar mass = 129.84 g/mol)
ou separated acetanlide from sand and sodium chloride (NaCl) via recrystallization. You separated the recrystallized acetanilide from the dissolved NaCl using a seperatory funnel. You started the separation experiment with 4 g of an impure mixture of NaCl, sand, and acetanilide (MW= 135.17 g/mol) and you collected 3.2 g after the recrystallization experiment.Whats the percent yield?
In the industrial synthesis of aspirin, 200 kg of salicyclic acid, C7H6O3 and 150 kg of acetic anhydride (CH3CO)2O, form acetylsalicylic acid, C9H8O4, (aspirin) and acetic acid, C2H4O2. In a manufacturing process, 200 kg of aspirin are produced from 200 kg of impure salicyclic acid and 150 kg of acetic anhydride. The salicylic acid is the limiting reagent. Calculate the purity of the salicyclic acid. How many kg of excess reagent are left over, assuming there are no side reactions between the impurities in the limiting reagent and the excess reagent?
Stoichiometric calculations. (show computations)K, a pharmaceutical scientist aims to synthesize paracetamol by reacting 3.075 mg of p-aminophenol and 2.25 milliliters of acetic anhydride to produce paracetamol and acetic acid. C6H7NO + C4H6O3 à C8H9NO2 + C2H4O2 Is the chemical reaction balanced? If yes, write YES. If not, what should be the balanced equation? What is the molecular weight of p-aminophenol? What is the molecular weight of acetic anhydride? What is the molecular weight of paracetamol? What is the limiting reactant? How many grams of paracetamol was formed? K was able to produce 1.88 grams of paracetamol. What is the percentage yield?
The stock erythrosine B solution is 8.5 × 10-5 M. Calculate the volume of this solution that you must pipet into a 50-mL volumetric flask, which, when diluted to mark with deionized water, will give a final concentration of 1.7 × 10-5 M. Show your calculation setup.
10.5mL (mw 106) of benzaldehyde and 2.9g(3.63mL, mw 40) of acetone react with 5g of NaOH and 25mL of Ethanol to form 6.7g of Dibenzalacetone. What is the theoretical, actual and percent yield?