Homework Answers
1. FeCl3 reacts only with the salicylic acid because it has free carboxylic group. It does not react with the aspirin.
FeCl3 reacts with the free carboxyl group and the hydroxyl group.
2. 
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Please answer both questions
FeCl, reacts with only one of the two compounds: aspirin and salicylic...
I compounds are aspirin (acetyl salicylic acid) and methyl salicylate (i.e. alcohols, aldehydes, ketones, acids, esters,...
I compounds are aspirin (acetyl salicylic acid) and methyl salicylate (i.e. alcohols, aldehydes, ketones, acids, esters, amides, etc)? 5. Describe what physiological effects aspirin causes in the body, eg. regarding body temperature, pain, swelling and thrombosis (blood clotting). Does it inhibit an enzyme? If so, what enzyme does it inhibit and what substances are formed by that enzyme? [You should check the text book for information on aspirin's actions]. 6. Aspirin belongs to a specific class of drugs known as...
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...
Pre-lab Questions: Importance A one-step preparation of aspirin from its precursor, salicylic acid, via an ester...
Pre-lab Questions:
Importance A one-step preparation of aspirin from its precursor, salicylic acid, via an ester formation illustrates one of synthetic organic chemistry's most important uses, making the drugs that treat all types of illnesses. OH HOOH Background Aspirin is a prodrug of salicylic acid, the actual active drug. A compound related to salicylic acid, salicin, was first isolated from willow bark in the mid 1700's, but willow-bark extract was used by the ancient Greeks as a treatment for pain...
please help Mustrates treat all types of ilnesses. Background Aspirin is a prodrug of salicylic acid,...
please help
Mustrates treat all types of ilnesses. Background Aspirin is a prodrug of salicylic acid, the actual active drug. A compound related to salicylic acid, salicin, was first isolated from willow bark in the mid 1700's, but willow-bark extract was used by the andient Greeks as a treatment for pain and fever. Salicylic acid (and many related phenols) are very hard on your Ho stomach, but when esterified, as aspirin is, they are much better tolerated. Simple esters are...
Please help me answer questions #1 through #12. Lab information and results are listed to the...
Please help me answer questions #1 through #12. Lab information
and results are listed to the right side. Thank you!
Paragraph . 1マーに 1 HTTL 2 | x' x, | so ea l E 1ヨ回ドもデ. | 2m 규亨ー过1K % Yield g aspirin obtained/ g aspirin calculated x 100 1. Mass of empty Erlenmeyer Flask,EF 2. Mass of EFsalicylic acid 3. Mass of EF+sslicylic acid + acetic anhydride 4. Mass of E 5. Calculate mass of salicylic acid used 8. Calculate...
Please answer questions completely and clearly. Will leave a LIKE when done so. Thank you. 2....
Please answer questions completely and clearly. Will leave a
LIKE when done so. Thank you.
2. Compound A undergoes electrophilic aromatic substitution. a. A reacts with E' at the ortho and meta positions. Draw the other resonance structures of the ortho and meta intermediates Et+ b. Is Compound A an ortho, para director or meta director? Give reasons c. You used salicylic acid in a nitration reaction in Lab 4c. Describe a synthesis of salicylic acid from phenol. State the...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification Reactions Q: Calculate the expected mass of both methyl salicylate and aspirin assuming 100% yield. EXPERIMENT7 PREPARATION OF PHARMACEUTICALS...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
1) Which reactant, salicylic acid or acetic anhydride, is in excess? Show your work. 2) If you we...
1) Which reactant, salicylic acid or acetic anhydride, is in
excess? Show your work.
2) If you were to use 3.17 g of starting material, how much
product would you expect? Again, show your work.
3) Why is phosphoric acid added to the reaction?
4) A small amount of water is added at the end of the reaction
to react with the excess acetic anhydride. Show a balanced equation
for that reaction.
5) Explain the purpose of the FeCl3 test...
1. Using Sigma-Aldrich website or Merck Index website or Google search find and draw structures for...
1. Using Sigma-Aldrich website or Merck Index website or Google search find and draw structures for the following compounds. (a) Atropine (b) Hydroxychloroquine (c) Saccharin (d) Cholesterol (e) Vitamin C (ascorbic acid) 2. Find the melting points for the following compounds by using Sigma-Aldrich or Google search (a) Biphenyl (b) 4-bromobenzoic acid (C) 3-nitrophenol 9. Chlorine, bromine and iodine all react with alkenes such as ethene in an addition reaction (a) Write the equation for the bromination of ethene, and...
could you please help me with these questions. thank you so much 45. What is the...
could you please help me with these questions. thank you so much
45. What is the order of decreasing reactivity of aldehydes, esters and ketones? a. Aldehydes > esters >ketones b. Esters> aldehydes > ketones c. Ketones > esters > aldehydes d. Aldehydes > ketones> esters 46. Which of these will not catalyze the reaction of a weak nucleophile with the carbonyl group of an aldehyde or ketone? (Hint: Look for which is not a Lewis Acid) A) I' B)...
I compounds are aspirin (acetyl salicylic acid) and methyl salicylate (i.e. alcohols, aldehydes, ketones, acids, esters, amides, etc)? 5. Describe what physiological effects aspirin causes in the body, eg. regarding body temperature, pain, swelling and thrombosis (blood clotting). Does it inhibit an enzyme? If so, what enzyme does it inhibit and what substances are formed by that enzyme? [You should check the text book for information on aspirin's actions]. 6. Aspirin belongs to a specific class of drugs known as...
Pre-lab Questions:
Importance A one-step preparation of aspirin from its precursor, salicylic acid, via an ester formation illustrates one of synthetic organic chemistry's most important uses, making the drugs that treat all types of illnesses. OH HOOH Background Aspirin is a prodrug of salicylic acid, the actual active drug. A compound related to salicylic acid, salicin, was first isolated from willow bark in the mid 1700's, but willow-bark extract was used by the ancient Greeks as a treatment for pain...
please help
Mustrates treat all types of ilnesses. Background Aspirin is a prodrug of salicylic acid, the actual active drug. A compound related to salicylic acid, salicin, was first isolated from willow bark in the mid 1700's, but willow-bark extract was used by the andient Greeks as a treatment for pain and fever. Salicylic acid (and many related phenols) are very hard on your Ho stomach, but when esterified, as aspirin is, they are much better tolerated. Simple esters are...
Please help me answer questions #1 through #12. Lab information
and results are listed to the right side. Thank you!
Paragraph . 1マーに 1 HTTL 2 | x' x, | so ea l E 1ヨ回ドもデ. | 2m 규亨ー过1K % Yield g aspirin obtained/ g aspirin calculated x 100 1. Mass of empty Erlenmeyer Flask,EF 2. Mass of EFsalicylic acid 3. Mass of EF+sslicylic acid + acetic anhydride 4. Mass of E 5. Calculate mass of salicylic acid used 8. Calculate...
Please answer questions completely and clearly. Will leave a
LIKE when done so. Thank you.
2. Compound A undergoes electrophilic aromatic substitution. a. A reacts with E' at the ortho and meta positions. Draw the other resonance structures of the ortho and meta intermediates Et+ b. Is Compound A an ortho, para director or meta director? Give reasons c. You used salicylic acid in a nitration reaction in Lab 4c. Describe a synthesis of salicylic acid from phenol. State the...
PREPARATION OF PHARMACEUTICALS - Fischer Esterification
Reactions
Q: Calculate the expected mass of both methyl salicylate and
aspirin assuming 100% yield.
EXPERIMENT7 PREPARATION OF PHARMACEUTICALS Fischer Esterification Reactions Almost 2500 years ago, physicians such as Hippocrates recommended that patients chew on the bark of the willow to alleviate pain. The active ingredient in willow bark was found to be salicin, a compound made of a molecule of salicyl alcohol bonded to a p-D-glucose molecule. In the stomach, the bond between...
1) Which reactant, salicylic acid or acetic anhydride, is in
excess? Show your work.
2) If you were to use 3.17 g of starting material, how much
product would you expect? Again, show your work.
3) Why is phosphoric acid added to the reaction?
4) A small amount of water is added at the end of the reaction
to react with the excess acetic anhydride. Show a balanced equation
for that reaction.
5) Explain the purpose of the FeCl3 test...
1. Using Sigma-Aldrich website or Merck Index website or Google search find and draw structures for the following compounds. (a) Atropine (b) Hydroxychloroquine (c) Saccharin (d) Cholesterol (e) Vitamin C (ascorbic acid) 2. Find the melting points for the following compounds by using Sigma-Aldrich or Google search (a) Biphenyl (b) 4-bromobenzoic acid (C) 3-nitrophenol 9. Chlorine, bromine and iodine all react with alkenes such as ethene in an addition reaction (a) Write the equation for the bromination of ethene, and...
could you please help me with these questions. thank you so much
45. What is the order of decreasing reactivity of aldehydes, esters and ketones? a. Aldehydes > esters >ketones b. Esters> aldehydes > ketones c. Ketones > esters > aldehydes d. Aldehydes > ketones> esters 46. Which of these will not catalyze the reaction of a weak nucleophile with the carbonyl group of an aldehyde or ketone? (Hint: Look for which is not a Lewis Acid) A) I' B)...
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