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What would happen if the excess acetic anhydride is not removed in the reaction vessel?
Wiki User
∙ 9y ago
If the excess acetic anhydride is not removed in the reaction vessel an unwanted reaction will occur. The acetic anhydride will react causing esterification.
Wiki User
∙ 9y ago
If excess acetic anhydride is not removed from the reaction vessel, it can lead to side reactions or undesired byproducts in the final product. It could also affect the purity of the desired compound and make purification more challenging. Additionally, it can pose safety hazards as acetic anhydride is a corrosive and hazardous chemical.
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What is the product of the reaction between 4-aminophenol and excess acetic anhydride?
The product of the reaction between 4-aminophenol and excess acetic anhydride is acetaminophen, also known as paracetamol. This reaction is a nucleophilic acyl substitution reaction that forms an amide functional group on the 4-aminophenol molecule.
Why add of little amount from acetic anhydride in synthesis of acetanilide?
Adding a small amount of acetic anhydride helps to facilitate the acetylation reaction with aniline, leading to the formation of acetanilide. The acetic anhydride serves as an acetylating agent that transfers an acetyl group to the amine group of aniline, resulting in the desired product. The use of an excess of acetic anhydride is avoided to prevent side reactions and to optimize the yield of acetanilide.
How is excess acetic acid removed from the reaction mixture prior to distillation in Fischer Esterification?
Excess acetic acid can be removed from the reaction mixture prior to distillation in Fischer Esterification by neutralization with a base such as sodium carbonate. The sodium acetate formed is water soluble and can be removed by washing with water, leaving behind the ester product.
Why is a large excess of acetic acid used in the preparation of isopentyl acetate?
A large excess of acetic acid is used in the preparation of isopentyl acetate to drive the reaction toward the formation of the ester product. By using an excess of acetic acid, the equilibrium of the reaction is shifted towards the product side, resulting in a higher yield of isopentyl acetate.
How do you create tri chloro acetic acid from acetic acid?
Trichloroacetic acid (TCA) can be obtained by reacting acetic acid with chlorine in the presence of a catalyst such as sulfuric acid or phosphorus pentachloride. The reaction involves substitution of three chlorine atoms for three hydrogen atoms on the acetic acid molecule. The reaction is typically conducted under controlled conditions due to the corrosive nature of TCA.
In the aspirin synthesis excess acetic anhydride is hydrolyzed by the addition of water which converts the anhydride into acetic acid Write the balanced equation for this reaction?
The reaction is: (CH3CO)2O + H2O = 2 CH3COOH
What is the product of the reaction between 4-aminophenol and excess acetic anhydride?
The product of the reaction between 4-aminophenol and excess acetic anhydride is acetaminophen, also known as paracetamol. This reaction is a nucleophilic acyl substitution reaction that forms an amide functional group on the 4-aminophenol molecule.
Why add of little amount from acetic anhydride in synthesis of acetanilide?
Adding a small amount of acetic anhydride helps to facilitate the acetylation reaction with aniline, leading to the formation of acetanilide. The acetic anhydride serves as an acetylating agent that transfers an acetyl group to the amine group of aniline, resulting in the desired product. The use of an excess of acetic anhydride is avoided to prevent side reactions and to optimize the yield of acetanilide.
How is excess acetic acid removed from the reaction mixture prior to distillation in Fischer Esterification?
Excess acetic acid can be removed from the reaction mixture prior to distillation in Fischer Esterification by neutralization with a base such as sodium carbonate. The sodium acetate formed is water soluble and can be removed by washing with water, leaving behind the ester product.
Why is a large excess of acetic acid used in the preparation of isopentyl acetate?
A large excess of acetic acid is used in the preparation of isopentyl acetate to drive the reaction toward the formation of the ester product. By using an excess of acetic acid, the equilibrium of the reaction is shifted towards the product side, resulting in a higher yield of isopentyl acetate.
How do you create tri chloro acetic acid from acetic acid?
Trichloroacetic acid (TCA) can be obtained by reacting acetic acid with chlorine in the presence of a catalyst such as sulfuric acid or phosphorus pentachloride. The reaction involves substitution of three chlorine atoms for three hydrogen atoms on the acetic acid molecule. The reaction is typically conducted under controlled conditions due to the corrosive nature of TCA.
Suppose 5.0 g of salicylic acid is heated with an excess amount of acetic acid. What is the expected yield of acetylsalicylic acid?
The theoretical yield of acetylsalicylic acid can be calculated based on the stoichiometry of the reaction between salicylic acid and acetic anhydride. For every 1 mole of salicylic acid reacted, 1 mole of acetylsalicylic acid is formed. Given the molecular weights of salicylic acid and acetylsalicylic acid, the expected yield can be calculated using the formula: expected yield (g) = (actual mass of salicylic acid / molecular weight of salicylic acid) x (molecular weight of acetylsalicylic acid).
Aspirin is made by the reaction of salicylic acid with acetic an hydride what is the theoretical yield of aspirin if 85.0 grams of salicylic acid is treated with excess acetic an hydride?
Since salicylic acid is being reacted with excess acetic anhydride, salicylic acid is the limiting reactant of the reaction. The balanced equation of the reaction of salicylic acid and acetic anhydride indicates that their is a 1:1:1:1 ratio between every reactant and product. Based on this, it can be concluded that the moles of salicylic acid, if reacted entirely, will yield an equivalent amount of moles of aspirin. To find the theoretical yield, you must know the molecular weight of aspirin and salicylic acid. First, the amount of moles of salicylic acid must be calculated by dividing the gram amount of salicylic acid, which is 85 grams, and dividing it by its molecular weight, which is 138.12 grams per mole.85.0/138.12= 0.615 moles of salicylic acidThis is the mole amount of salicylic acid as well as the theoretical mole amount of aspirin. To convert the mole amount of aspirin into grams, this figure be multiplied by the molecular weight of aspirin, which is 180.15980.615 x 180.1598 = 111 grams of aspirin (when rounded to 3 significant figures)
What happens when sodium hydroxide is added to acetic acid?
When sodium hydroxide is added to acetic acid, a neutralization reaction occurs, resulting in the formation of sodium acetate and water. This reaction also releases heat. Additionally, the resulting solution will be basic due to the presence of excess hydroxide ions.
How do you separate unused zinc after reacting excess zinc with dilute sulphuric acid?
You can separate unused zinc from the reaction mixture by filtering the solution. The unused zinc will remain as solid residue on the filter paper while the liquid (dilute sulphuric acid and any dissolved zinc sulfate) passes through as filtrate.
If 1.5g of salicylic acid is heated with an excess of acetic anhydride, what is the theoretical yield of acetylsalicyclic acid?
The molar mass of salicylic acid is 138.12 g/mol. To convert 1.5g to moles: 1.5g / 138.12 g/mol = 0.0109 mol. Since acetylsalicylic acid is formed by the reaction, the theoretical yield would be equal to the moles of salicylic acid used in the reaction. Therefore, the theoretical yield is 0.0109 mol of acetylsalicylic acid.
A neutralization reaction is what kind of a reaction?
An acid-base reaction that leaves no excess H+ or OH-
