First choice: ( Hydeolyze excess acetic anhydride, form acetic anhydride from excess acetic acide , cool down the reaction , OR dilute the sulfuric acid)
Second choice:( dilute the sulfuric acid, a room temperature reaction , acetic acide , OR acetic anhydride)
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First choice: ( Hydeolyze excess acetic anhydride, form acetic anhydride from excess acetic acide , cool...
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.
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...
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...
In the reaction shown, 78.7 g salicylic acid, C7H6O3 , reacts with excess acetic anhydride, C4H6O3 , producing 38.1 g of aspirin, C9H8O4 . C7H6O3(s)+C4H6O3(l)⟶C9H8O4(s)+CH3CO2H(l) Calculate the percent yield of this reaction.
Suppose you started with 25.8 g of salicylic acid and an excess of acetic anhydride was used to synthesize aspirin. If you obtained 21.7 g of aspirin, calculate the yield of this reaction. (Show your detailed calculations) (1.5 Points) 3. After carrying out the aspirin synthesis experiment, suggest two experiments or techniques (give only name of Experiment) based on what you have learned last few weeks to confirm the preparation and purity of aspirin. (1 Point) 4. A commercial aspirin...
2. Suppose you started with 25.8 g of salicylic acid and an excess of acetic anhydride was used to synthesize aspirin. If you obtained 21.7 g of aspirin, calculate the yield of this reaction. (Show your detailed calculations) (1.5 Points) 3. After carrying out the aspirin synthesis experiment, suggest two experiments or techniques (give only name of Experiment) based on what you have learned last few weeks to confirm the preparation and purity of aspirin. (1 Point) 4. A commercial...
PROCEDURE 1. Place a reaction tube into a 5-mL Erienmeyer and tare. Add between 0.275- 0.300g of salicylic acid. Record on the data sheet. 2. Transfer the reaction tube and 5-ml Erienmeyer to the hood. Add a boiling chip, 2 drops of 85% phosphoric acid, and about 0.70 mL of acetic anhydride to the reaction tube. Mix well. 3. Place a 50-ml beaker containing about 20-mls of water on a hot plate or in the sand bath. Allow the water...
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...
orgo 2 ex.. Search References Mailings Review View Help 1. What is the balanced equation for the preparation of aspirin? 2. What type of reaction is this? 3. Describe the purity of your product based on its melting point range and its appearance. What is the position of the O-H stretch in the IR spectrum? 4. Why is concentrated phosphoric acid added? Concentrated sulfuric acid may be used in place of the phosphoric acid, but HCL La volatile substrate) and...
Question#1: Aspirin is prepared by reaction of salicylic acid (C7H6O3)(C7H6O3) with acetic anhydride (C4H6O3)(C4H6O3) according to the following equation: C7H6O3Salicylicacid+C4H6O3Aceticanhydride→C7H6O3Salicylicacid+C4H6O3Aceticanhydride→ C9H8O4Aspirin+CH3COOHAceticacid A) How many grams of acetic anhydride are needed to react with 7.50 gg of salicylic acid? B)How many grams of aspirin will result? C) How many grams of acetic acid are formed as a by-product? Question #2: Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2Al(s)+3Cl2(g)→2AlCl3(s)2Al(s)+3Cl2(g)→2AlCl3(s) You are given 26.0 gg of aluminum...