Homework Answers
Ans= d Catalyst
For mechanism refer attached photo photo
Add Answer to:
QUESTION 4 What is the role of the proton in the synthesis of aspirin? O a....
During the aspirin synthesis a student began with 4.057 grams of salicylic acid (density=1.443 g/mL, mol.wt....
During the aspirin synthesis a student began with 4.057 grams of salicylic acid (density=1.443 g/mL, mol.wt. = 138. 12 g/mol) and 1.98 mL of acetic anhydride (d= 1.082 g/mL, Mwt= 102.09 g/mol). A total of 3.249 grams of aspirin was formed (m.wt 180.17 g/mol). What was the percent yield? 61.4 % 071.4% 80.1 % O 85.9 % Question 19 (3 points) In the oxidation of 9-Fluorenol to 9-Fluorenone, NaOCI serves as a: Nucleophile Drying agent Catalyst Reducing agent
QUESTION 5 Which of the following statements best describes the role NaOH plays in the synthesis...
QUESTION 5 Which of the following statements best describes the role NaOH plays in the synthesis of aspirin? None of these. It acts as a catalyst. It reacts with the acid. It makes the reaction exothermic. It helps to speed up the reaction. It helps to slow down the reaction.
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 is the role of NEtat is this reaction? SH H2O, NET, CI, THF, NASH O...
What is the role of NEtat is this reaction? SH H2O, NET, CI, THF, NASH O Solvent Nucleophile Catalyst Electrophile
What is the role of B in the following reaction? COOH CH3OH B С A solvent...
What is the role of B in the following reaction? COOH CH3OH B С A solvent O catalyst electrophile nucleophile
Biochemistry question What is the role of His F8 in Hb? O AHydrophobic core residue O...
Biochemistry question
What is the role of His F8 in Hb? O AHydrophobic core residue O B Carries a proton out of the tissues and dumps it in the lungs O CCritical for binding copper into the center of the Heme O D It's not conserved, and has no specific function
Draw the structures of the organic products in each reaction of the following two-step synthesis. (Hint:...
Draw the structures of the organic products in each reaction of the
following two-step synthesis. (Hint:
The nucleophilic amine attacks the electrophilic carbonyl carbon,
and the resulting intermediate undergoes a proton shift and
dehydration. Recall what is eliminated in a dehydration process.
The second step is a reduction reaction; the reducing agent is
NaBH3CN (or H2, metal catalyst). The aromatic ring is unaffected by
these reagents. Look at the product of the first reaction and
consider what can be easily...
Draw the structures of the organic products in each reaction of the following two-step synthesis. (Hint: The nucleo...
Draw the structures of the organic products in each reaction of the
following two-step synthesis. (Hint:
The nucleophilic amine attacks the electrophilic carbonyl carbon,
and the resulting intermediate undergoes a proton shift and
dehydration. Recall what is eliminated in a dehydration process.
The second step is a reduction reaction; the reducing agent is
NaBH3CN (or H2, metal catalyst). The aromatic ring is unaffected by
these reagents. Look at the product of the first reaction and
consider what can be easily...
undigement. QUESTION 17 What is the rate-determining step in the following reaction? HCI O a. proton...
undigement. QUESTION 17 What is the rate-determining step in the following reaction? HCI O a. proton transfer b. coordination oc nucleophilic addition d. bimolecular nucleophilic substitution O e. electrophilic addition - S
1. Write the chemical equation for the synthesis of aspirin (ASA) from salicylic acid (SA) and acetic...
1. Write the chemical equation for the synthesis of aspirin (ASA) from salicylic acid (SA) and acetic anhydride. Include all necessary reagents, catalysts, and reaction conditions. 2. In the reaction written for question # 1, circle the nucleophile. Place a square around the acetyl group of the product. (2)
During the aspirin synthesis a student began with 4.057 grams of salicylic acid (density=1.443 g/mL, mol.wt. = 138. 12 g/mol) and 1.98 mL of acetic anhydride (d= 1.082 g/mL, Mwt= 102.09 g/mol). A total of 3.249 grams of aspirin was formed (m.wt 180.17 g/mol). What was the percent yield? 61.4 % 071.4% 80.1 % O 85.9 % Question 19 (3 points) In the oxidation of 9-Fluorenol to 9-Fluorenone, NaOCI serves as a: Nucleophile Drying agent Catalyst Reducing agent
QUESTION 5 Which of the following statements best describes the role NaOH plays in the synthesis of aspirin? None of these. It acts as a catalyst. It reacts with the acid. It makes the reaction exothermic. It helps to speed up the reaction. It helps to slow down the reaction.
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 is the role of NEtat is this reaction? SH H2O, NET, CI, THF, NASH O Solvent Nucleophile Catalyst Electrophile
What is the role of B in the following reaction? COOH CH3OH B С A solvent O catalyst electrophile nucleophile
Biochemistry question
What is the role of His F8 in Hb? O AHydrophobic core residue O B Carries a proton out of the tissues and dumps it in the lungs O CCritical for binding copper into the center of the Heme O D It's not conserved, and has no specific function
Draw the structures of the organic products in each reaction of the
following two-step synthesis. (Hint:
The nucleophilic amine attacks the electrophilic carbonyl carbon,
and the resulting intermediate undergoes a proton shift and
dehydration. Recall what is eliminated in a dehydration process.
The second step is a reduction reaction; the reducing agent is
NaBH3CN (or H2, metal catalyst). The aromatic ring is unaffected by
these reagents. Look at the product of the first reaction and
consider what can be easily...
Draw the structures of the organic products in each reaction of the
following two-step synthesis. (Hint:
The nucleophilic amine attacks the electrophilic carbonyl carbon,
and the resulting intermediate undergoes a proton shift and
dehydration. Recall what is eliminated in a dehydration process.
The second step is a reduction reaction; the reducing agent is
NaBH3CN (or H2, metal catalyst). The aromatic ring is unaffected by
these reagents. Look at the product of the first reaction and
consider what can be easily...
undigement. QUESTION 17 What is the rate-determining step in the following reaction? HCI O a. proton transfer b. coordination oc nucleophilic addition d. bimolecular nucleophilic substitution O e. electrophilic addition - S
Most questions answered within 3 hours.
-
URGENT PLEASE HELP. could you make it easy to understand and in
C++ thanks
1. (30...
asked 2 minutes ago -
Case Study. Multi Projects
Multi Projects, Inc., is a well-established consulting firm
with 400 employees. It...
asked 8 minutes ago -
An 8.00 kg point mass and a 15.0 kg point mass are held in place
50.0...
asked 9 minutes ago -
What would cause my program to execute the first if statement no
problem, but the second...
asked 10 minutes ago -
The Department of Transportation (DOT) would like to test the
hypothesis that the average age of...
asked 23 minutes ago -
Suppose Hoosiers, a specialty clothing store, rents space at a
local mall for one year, paying...
asked 25 minutes ago -
2. Your client from number 1 above is absolutely ecstatic about
the verdict in the immunization...
asked 22 minutes ago -
Some
critics of marketing have suggested that market segmentation and
target marketing lead to an unnecessary...
asked 25 minutes ago -
PART A: An electric current flows through a resistor. Which side
will have the higher electric...
asked 30 minutes ago -
An ideal heat engine has an efficiency of 18.9 percent. It
operates between two heat reservoirs...
asked 30 minutes ago -
3.11 (Modified Account Class) Modify class Account (Fig. 3.8 )
to
provide a method called withdraw...
asked 49 minutes ago -
What will be the resulting list after the following algorithm
has been applied to the list:...
asked 41 minutes ago