Calculate the theoretical yield and percent yield for experiments 7, 8, and 9. For experiment 9, determine the theoretical yield based on starting with 0.50g of 3-nitrobenzoic acid. Show work
Acid I (experiment 7): Weight of methyl 3-nitrobenzoate = 1.9
g
Acid II (experiment 8): Weight of 3-nitrobenzoic acid = 1.75
g
Acid III (experiment 9): Weight of 3-nitrobenzamide = 0.30 g
Experiment 7:
-2.5 mL concentrated H2SO4
-1.75 mL concentrated HNO3 (16M)
-2.1 mL concentrated Methyl Benzoate
Experiment 8:
-0.7g of sodium hydroxide pellets for each gram of ester
-2mL of HCL
Experiment 9:
Calculate the theoretical yield and percent yield for experiments 7, 8, and 9. For experiment 9,...
Nitration of Methyl Benzoate to synthesize Methyl m-nitrobenzoate Find theoretical yield and percent yield. Show all steps. Results: .040 g of methyl m-nitrobenzoate crystals produced 1. Add .30 g of Methyl Benzoate to .6 ml of Sulfuric Acid in a reaction tube 2. Dropwise add a mixture of .2 ml of sulfuric acid and .2ml of nitric acid 3. After 15 min, pour onto 2.5 g of ice in a small beaker 4. Use suction filtration to dry crystals. Wash...
help with 3 and 4 on from risic vent for the ons formed POSTLAB QUESTIONS 1. Sulfuric acid serves three functions in this action: 1) in the format dcia; 2) as the Lewis acid catalyst for electrophilic aromatic substituto reaction by dissolving the methul benzoate. Based on the procond explain why nitration occurs primarily at the meta position and no 2. What two techniques were used in this experiment to prevent dinica 3. What would be the structure of the...
QUESTIONS 1. Why does methyl benzoate dissolve in concentrated sulfuric acid? 2. What is the EQUATION for the reaction between concentrated nitric and sulfuric acids? 3. What is the DOT STRUCTURE for NO,"? 4. What is the MECHANISM for the formation of m-nitromethylbenzoate? 5. WHY does reaction occur at the META position only? 6. What is the PURITY of the m-nitromethylbenzoate recovered based on its melting range?
Calculate the theoretical yield I got 0.0103 mols of methyl benzoate and 0.0224 mols of nitric acid. Methyl benzoate is the limiting reactant 4. Calculate the theoretical yield (in grams) of the methyl nitrobenzoate isomer formed in the reaction from the amounts used in the procedure. Be sure and use the limiting reagent for your caleulations. Show your work and use correct number of significant figures in your answer. 5. Yield of product:
3-5 pls Post-Laboratory Questions-EXP 3 Nitration of Aromatic Compounds Name: Due after completing the lab. 1. Why is concentrated sulfuric acid employed in this reaction? What is the electrophile that is produced by the reaction of sulfuric acid and nitric acid? 2. Why is it important to maintain the reaction temperature low and the addition of nitric acid-sulfuric acid mixture carried out slowly? 3. Explain why concentrated H2SO, not concentrated HCl, was used in this experiment? 4. Which ring of...
numbers 1-3 Post-Laboratory Questions-EXP 3 Nitration of Aromatic Compounds Name: Due after completing the lab. 1. Why is concentrated sulfuric acid emploved in thie on? What is the electrophile that is produced by the reaction of sulfuric acid and nitric acid? 2. Why is it important to maintain the reaction temperature low and the addition of nitric acid-sulfuric acid mixture carried out slowly? 3. Explain why concentrated H2SO4, not concentrated HC1, was used in this experiment? 4. Which ring of...
the weight if the initial product was 3.4 grams of methyl benzoate. Who |o yald foR 3.91SSg st prodoct nd product 2.14143 EXPERIMENTAL PROCEDURE SAFETY WEAR nitrile gloves for this experiment. The nitrating moture of sulfuric acidnitric acid (1:1) is a very strong acid system. Do not allow it to come in contact with your skin or clothing. It will cause acid burns if it comes in contact with your skin (and holes an your clothes). Wash any affected area...
PROCEDURE CAUTION!!! Nitric acid and sulfuric acid are strong and corrosive acids. For that reason, avoid inhaling its vapors or causing any contact with the skin or clothing. Wear your protective glasses at all times. Use the extractors to work with these acids. A. Nitration of methyl benzoate 1. Preparation of the reactants. In the extractor you will find a burette with concentrated sulfuric acid, a second burette with concentrated nitric acid, clearly identified. Familiarize yourself with the scales of...
Can you explain how to find what is the theoretical yield, and the desired percent yield of ethyl 4-nitrobenzoate? 1. Synthesis of ethyl 4-nitrobenzoate a) In a 50-ml round-bottom flask, weigh out 4-nitrobenzoic acid (0.85 g, 0.005 mol). Add to this 8 ml of absolute ethanol. Add boiling stones, and then bring this solution to the Lab Technologist. WATER OUT b) The Lab Technologist will deliver 1.2 ml of concentrated sulfuric acid to the mixture from the automatic pipette. [CAUTION,...
2. If one were esterifying an expensive alcohol with an expensive carboxylic acid derivative, would it be wiser to use the acid chloride or acid anhydride reagent? Why? 3. Why is so much NaOH used in the extraction? Recall that only four drops (small amount) of sulfuric acid were used as a catalyst. Esters are an important class of organic molecules, which are formally derived from alcohols and carboxylic acids. Esters occur widely in nature and are often an important...