Dulcin Lab 1.) Is it important to add acetic acid to the reaction mixture? What would...
Dulcin Lab
1.) Is it important to add acetic acid to the reaction mixture? What would happen if you forgot to add acetic acid?
2.) Copy the structure of phenentidine and label all of the functional groups
3.) Consider the following equilibrium Phenetidine + acetic acid ⇌ Phenetidine hydroacetate a. The pKa of acetic acid is 4.8, and the pKa of the conjugate acid of phenetidine is 5.2. Which compound is the stronger acid? b. Based on the pKa values given in part (a), is the equilibrium constant (Keq) for the reaction equal to 1, greater than 1, or less than 1?
Homework Answers
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Dulcin Lab
1.) Is it important to add acetic acid to the reaction mixture?
What would...
I am doing a report on the synthesis of Dulcin from Phenetidine, Potassium Cyanate, and Acetic...
I am doing a report on the synthesis of Dulcin from Phenetidine, Potassium Cyanate, and Acetic Acid. Potassium Cyanate reacts with Acetic Acid to form isocyanic acid, which then reacts with Phenetidine to produce Dulcin. 1) Why is it important to add acetic acid to the reaction mixture? What would happen if you forgot to add it? 2) Is it necessary to produce isocyanic acid in the reaction flask, or could it be preformed and added to the reaction flask...
Question 39 1 pts A weak acid (HA) reacts with a weak base (B) to form the conjugate base of the acid (A) and the conjugate acid of the base (B-H the pKa of HA was 4.8 and the pKa of BH* (i.e., the p...
Question 39 1 pts A weak acid (HA) reacts with a weak base (B) to form the conjugate base of the acid (A) and the conjugate acid of the base (B-H the pKa of HA was 4.8 and the pKa of BH* (i.e., the pKabH of B) was 9.4, what would be the value of the equilibrium constant for the above reaction to the nearest ones? Obviously, by expressing the answer to the nearest ones, we are using too many...
With this information what is the PH of the .1 M acetic acid sol and .1...
With this information what is the PH of the .1 M
acetic acid sol and .1 M acetic acid buffer sol? Please help
solutions to observe that buffers resist pH changes. Burette readings should be made to the nearest 0.1 mL (or 0.05 mL if possible), A. Preparation of Acetic Acid-Acetate Buffer Solution An acetate buffer contains the acid-base pair, acetic acid and the acetate ion (typically added as sodium acetate). For acetic acid, pK, = -log (1.8 x 10-)...
seperation of acid neutral Experiment 5: Separation of Acid-Neutral Mixture Post-Lab Questions 1. Draw and label...
seperation of acid neutral
Experiment 5: Separation of Acid-Neutral Mixture Post-Lab Questions 1. Draw and label the structures of the major and minor components of the acidic and neutral mixtures. 2. Although acetic acid - water may be used as a "solvent pair", why are dilute solutions of an inorganic acid/water (or, inorganic base/water) avoided in recrystallization attempts? (Hint: see Wade Ed: Sections 21-12, 21- 13. Consider functional-group possibilities.] 3. Using a flow diagram, show the separation of a mixture...
Question 1 (2 points) The relationship between a weak acid and its conjugate base at the...
Question 1 (2 points) The relationship between a weak acid and its conjugate base at the 1/2 neutralization point is: the weak acid's concentration is greater than the conjugate base concentration. the weak acid's concentration is less than the conjugate base's concentration the weak acid's concentration is 1/2 the concentration of the conjugate base's concentration the weak acid and conjugate base have the same concentration. Question 2 (3 points) ✓ Saved The pka of acid is 4.8. Determine the acid's...
1. The reaction mixture contains isopentyl acetate, isopentyl alcohol, water, acetic acid and sulfuric acid. a)...
1. The reaction mixture contains isopentyl acetate, isopentyl alcohol, water, acetic acid and sulfuric acid. a) Why is the reaction mixture extracted with sodium bicarbonate? In other words, what two substances does sodium bicarbonate react with in the reaction mixture and why are these reactions useful? (4 pts) b) Write a balanced chemical equation for each reaction involving sodium bicarbonate. c) When the reaction mixture is extracted with sodium bicarbonate solution, what substances will be in the aqueous layer? What...
1. For the acetylation of ferrocene, ferrocene is mixed with acetic anhydride and 85% phosphoric acid...
1. For the acetylation of ferrocene, ferrocene is mixed with acetic anhydride and 85% phosphoric acid and heated for 20 mins. Why is phosphoric acid used rather than a stronger acid such as sulfuric acid? 2. For the oxidation of ferrocene, NH4[PF6] is added to the reaction mixture of ferrocene, acetone, distilled water, and anhydrous FeCl3. What is the purpose of adding NH4[PF6]?
CHE 201 1. Give two reasons why concentrated sulfuric acid was added to the reaction 2....
CHE 201 1. Give two reasons why concentrated sulfuric acid was added to the reaction 2. In the synthesis of homohutano why was Synthesis of bromobutane why was the reaction mixture cooled in an ice bath before a concentrated sulfuric acid2 Describe what might happen if you forgot to cool the mixture. the esterification of butanol hu ur side products in the synthesis of hom feng butul hydrogen sulfate (A). This causes decreasing the yield of the desired product e...
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points)...
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points) 2. How does KI-starch paper work? What is the source of the dark color 3. What is the purpose of adding saturated aqueous sodium bisult What reaction is taking place? Write out the bar my saturated aqueous sodium bisulfite to the reaction mixture? is taking place? Write out the balanced equation for this reaction. Why do you e kl-starch paper test after adding the...
OKINETICS AND EQUILIBRIUM Predicting relative forward and reverse rates of reaction in a dyn... Acetic acid...
OKINETICS AND EQUILIBRIUM Predicting relative forward and reverse rates of reaction in a dyn... Acetic acid and water react to form hydronium cation and acetate anion, like this: HCH,CO2(aq)+H20(1) - H20" (aq)+CH, CO2 (aq) and CH CO, at equilibrium, and then answer the Imagine 100. mmol of HCH CO, are added to a flask containing a mixture of HCH CO., H, O, H,O following questions. What is the rate of the forward reaction before any HCH3CO2 has been added to...
Question 39 1 pts A weak acid (HA) reacts with a weak base (B) to form the conjugate base of the acid (A) and the conjugate acid of the base (B-H the pKa of HA was 4.8 and the pKa of BH* (i.e., the pKabH of B) was 9.4, what would be the value of the equilibrium constant for the above reaction to the nearest ones? Obviously, by expressing the answer to the nearest ones, we are using too many...
With this information what is the PH of the .1 M
acetic acid sol and .1 M acetic acid buffer sol? Please help
solutions to observe that buffers resist pH changes. Burette readings should be made to the nearest 0.1 mL (or 0.05 mL if possible), A. Preparation of Acetic Acid-Acetate Buffer Solution An acetate buffer contains the acid-base pair, acetic acid and the acetate ion (typically added as sodium acetate). For acetic acid, pK, = -log (1.8 x 10-)...
seperation of acid neutral
Experiment 5: Separation of Acid-Neutral Mixture Post-Lab Questions 1. Draw and label the structures of the major and minor components of the acidic and neutral mixtures. 2. Although acetic acid - water may be used as a "solvent pair", why are dilute solutions of an inorganic acid/water (or, inorganic base/water) avoided in recrystallization attempts? (Hint: see Wade Ed: Sections 21-12, 21- 13. Consider functional-group possibilities.] 3. Using a flow diagram, show the separation of a mixture...
Question 1 (2 points) The relationship between a weak acid and its conjugate base at the 1/2 neutralization point is: the weak acid's concentration is greater than the conjugate base concentration. the weak acid's concentration is less than the conjugate base's concentration the weak acid's concentration is 1/2 the concentration of the conjugate base's concentration the weak acid and conjugate base have the same concentration. Question 2 (3 points) ✓ Saved The pka of acid is 4.8. Determine the acid's...
1. The reaction mixture contains isopentyl acetate, isopentyl alcohol, water, acetic acid and sulfuric acid. a) Why is the reaction mixture extracted with sodium bicarbonate? In other words, what two substances does sodium bicarbonate react with in the reaction mixture and why are these reactions useful? (4 pts) b) Write a balanced chemical equation for each reaction involving sodium bicarbonate. c) When the reaction mixture is extracted with sodium bicarbonate solution, what substances will be in the aqueous layer? What...
CHE 201 1. Give two reasons why concentrated sulfuric acid was added to the reaction 2. In the synthesis of homohutano why was Synthesis of bromobutane why was the reaction mixture cooled in an ice bath before a concentrated sulfuric acid2 Describe what might happen if you forgot to cool the mixture. the esterification of butanol hu ur side products in the synthesis of hom feng butul hydrogen sulfate (A). This causes decreasing the yield of the desired product e...
Post Lab Questions what is the purpose of glacial acetic acid in this reaction? (5 points) 2. How does KI-starch paper work? What is the source of the dark color 3. What is the purpose of adding saturated aqueous sodium bisult What reaction is taking place? Write out the bar my saturated aqueous sodium bisulfite to the reaction mixture? is taking place? Write out the balanced equation for this reaction. Why do you e kl-starch paper test after adding the...
OKINETICS AND EQUILIBRIUM Predicting relative forward and reverse rates of reaction in a dyn... Acetic acid and water react to form hydronium cation and acetate anion, like this: HCH,CO2(aq)+H20(1) - H20" (aq)+CH, CO2 (aq) and CH CO, at equilibrium, and then answer the Imagine 100. mmol of HCH CO, are added to a flask containing a mixture of HCH CO., H, O, H,O following questions. What is the rate of the forward reaction before any HCH3CO2 has been added to...
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