Why is precipitation seen after the addition of sulfuric acid to a solution containing salicylic acid and acetic anhydri...
Why is precipitation seen after the addition of sulfuric acid to a solution containing salicylic acid and acetic anhydride?
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Why is precipitation seen after the addition of sulfuric acid to a solution containing salicylic acid and acetic anhydri...
H3PO4 OH + OH OH salicylic acid acetic anhydride acetic acid acetylsalicylic acid (aspirin) 1. Why...
H3PO4 OH + OH OH salicylic acid acetic anhydride acetic acid acetylsalicylic acid (aspirin) 1. Why is it better to perform acetylation with acetic anhydride rather than using a Fischer esterification with acetic acid? 2. Draw a complete arrow-pushing mechanism for the reaction. 3. When an old sample of aspirin is left in moist conditions, it will begin to smell like vinegar. Draw a reaction scheme and briefly explain what happened.
Aspirin was prepared from salicylic acid by ...... O esterification of the acetic anhydride O esterification...
Aspirin was prepared from salicylic acid by ...... O esterification of the acetic anhydride O esterification of the concentrated sulfuric acid O acetylation of concentrated sulfuric acid O esterification of the carboxylic group O acetylation of the phenolic group
QUESTION 3 Salicylic acid reacts with acetic anhydride to form aspirin and acetic acid as shown. Use the equation to answer Questions 3 – 6. (salicylic acid) ...
QUESTION 3 Salicylic acid reacts with acetic anhydride to form aspirin and acetic acid as shown. Use the equation to answer Questions 3 – 6. (salicylic acid) (aspirin) C7H6O3 (s) + C4H6O3 (l) → C9H8O4 (s) + CH3COOH (l) MM = 138 MM = 180 If we divide 180 by 138 we find that 1.00 g salicylic acid will produce a maximum of 1.30 g aspirin. 3. A student starts with 3.20 g salicylic acid. What is the maximum amount...
Mass of salicylic acid: 3.112g volume of acetic anhydride: 7.40ml Density of acetic anhydride = 1.08...
Mass of salicylic acid: 3.112g volume of acetic anhydride: 7.40ml Density of acetic anhydride = 1.08 g/ml molar mass of Salicylic acid in g/mol is 138.12 1. Calculate the moles of Salicylic acid used in the reaction: Round your to 4 significant fig: 2. Calculate the mass of acetic anhydride used in the reaction in g: Round to 3 sig. figures
question 1-3 Question 1 (1 point) What is the stoichiometric ratio of salicylic acid to acetic...
question 1-3
Question 1 (1 point) What is the stoichiometric ratio of salicylic acid to acetic anhydride in the balanced equation for the synthesis of aspirin? a infinite Ob 1:1 OC 1:2 Od 2:1 Оe cannot tell Question 2 (1 point What was the role of the Hypo, in this experiment? Choose the best answer. Reactant Ob Product OC Intermediate Catalyst To acidity the solution - No role Question 31 point What is the limiting reagent in the reaction? salicylic...
what effect would the following have on the reaction between salicylic acid and acetic anhydride? Support...
what effect would the following have on the reaction between salicylic acid and acetic anhydride? Support your reasoning by drawing the mechanism for the reaction and incorporating them in the mechanism. 1. anhydride sodium acetate 2.pyridine 3. boron trifluoride and 4. concentrated sulfuric acid
In the mechanism for formation of acetylsalicylic acid via reaction of salicylic acid with acetic anhydride,...
In the mechanism for formation of acetylsalicylic acid via reaction of salicylic acid with acetic anhydride, phosphoric acid acts as a catalyst by O cleaving an acetyl group from acetic anhydride via protonation of the bridging oxygen O neutralizing the hydroxide ion side product protonating the carbonyl oxygen in the acetic anhydride protonating the phenolic oxygen of salicylic acid Question 10 (3 points) What would be the predicted major product from the thermodynamically controlled dehydration of the following material OH
Excess acetic anhydride is destroyed by the addition of water, which converts the anhydride into acetic...
Excess acetic anhydride is destroyed by the addition of water, which converts the anhydride into acetic acid. Write the balance equation for the reaction FeCl3 is used to test for the presence of unreacted salicylic acid. Write the neutralization reaction of salicylic acid with NaOH to produce sodium salicylate.
In this lab you are synthesizing acetylsalicylic acid (ASA) from salicylic acid using acetic anhydride, with...
In this lab you are synthesizing acetylsalicylic acid (ASA) from salicylic acid using acetic anhydride, with phosphoric acid as a catalyst. If the amount of salicylic acid at the start of the reaction was 1.05 g, what is the theoretical yield of ASA in g? Assume acetic anhydride is in excess.
1. Mass of salicylic acid (g) 2.0089 5.10ml & 2. Volume of acetic anhydride (mL) Limiting...
1. Mass of salicylic acid (g) 2.0089 5.10ml & 2. Volume of acetic anhydride (mL) Limiting reactant is (circle one): Salicylic Acid or Acetic Anhydride Calculation for Limiting Reactant: 3. Theoretical yield of aspirin (9) Calculation for Theoretical Yield of aspirin: 4. Mass of filter paper 0.3369 N 5. Mass of filter paper + aspirin 2.471g 6. Experimental Yield of aspirin (g) 7. Percent Yield Synthesis of Aspirin An early oral pain reliever, salicylic acid, was determined to cause stomach...
H3PO4 OH + OH OH salicylic acid acetic anhydride acetic acid acetylsalicylic acid (aspirin) 1. Why is it better to perform acetylation with acetic anhydride rather than using a Fischer esterification with acetic acid? 2. Draw a complete arrow-pushing mechanism for the reaction. 3. When an old sample of aspirin is left in moist conditions, it will begin to smell like vinegar. Draw a reaction scheme and briefly explain what happened.
Aspirin was prepared from salicylic acid by ...... O esterification of the acetic anhydride O esterification of the concentrated sulfuric acid O acetylation of concentrated sulfuric acid O esterification of the carboxylic group O acetylation of the phenolic group
question 1-3
Question 1 (1 point) What is the stoichiometric ratio of salicylic acid to acetic anhydride in the balanced equation for the synthesis of aspirin? a infinite Ob 1:1 OC 1:2 Od 2:1 Оe cannot tell Question 2 (1 point What was the role of the Hypo, in this experiment? Choose the best answer. Reactant Ob Product OC Intermediate Catalyst To acidity the solution - No role Question 31 point What is the limiting reagent in the reaction? salicylic...
In the mechanism for formation of acetylsalicylic acid via reaction of salicylic acid with acetic anhydride, phosphoric acid acts as a catalyst by O cleaving an acetyl group from acetic anhydride via protonation of the bridging oxygen O neutralizing the hydroxide ion side product protonating the carbonyl oxygen in the acetic anhydride protonating the phenolic oxygen of salicylic acid Question 10 (3 points) What would be the predicted major product from the thermodynamically controlled dehydration of the following material OH
1. Mass of salicylic acid (g) 2.0089 5.10ml & 2. Volume of acetic anhydride (mL) Limiting reactant is (circle one): Salicylic Acid or Acetic Anhydride Calculation for Limiting Reactant: 3. Theoretical yield of aspirin (9) Calculation for Theoretical Yield of aspirin: 4. Mass of filter paper 0.3369 N 5. Mass of filter paper + aspirin 2.471g 6. Experimental Yield of aspirin (g) 7. Percent Yield Synthesis of Aspirin An early oral pain reliever, salicylic acid, was determined to cause stomach...
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