Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

1. Work in the hood for steps 1 thru 5. Place 3.0mL of concentrated sulfuric acid in a small Erlenmeyer flask (or use a short,

image text in transcribedimage text in transcribedimage text in transcribed

1. Work in the hood for steps 1 thru 5. Place 3.0mL of concentrated sulfuric acid in a small Erlenmeyer flask (or use a short, wide-mouthed test tube) and clamp the flask securely in an ice- water bath over a magnetic stirrer. Add a magnetic stir bar. 2. Stir the sulfuric acid. Cool the sulfuric acid to 5C and add 1.2mL of methyl benzoate. 3. Prepare the nitrating mixture. In a separate test tube, cool 1mL of concentrated sulfuric acid and add to it 1 mL of concentrated nitric acid. Cool the mixture between 0 and 100 before proceeding. 4. Add the nitrating mixture to the stirred methyl benzoate at such a rate that the temperature does not exceed 30C. 5. After all the nitrating mixture has been added, remove the ice bath and stir the reaction mixture for 15 - 20 minutes. > 7. When the ice has melted, suction filter the reaction mixture to remove the crude solid product. 8. Recrystallize the product from 50% aqueous ethanol. 9. Record the mass of the product obtained and calculate the percent yield. Examine the product by infrared spectrophotometry. Identify absorptions due to aliphatic C-H, C=O, C-O, aryl C-H, and NO2. Also identify the substitution pattern on the benzene ring (meta). Compare the IR spectrum of the product to that of the starting material. Also obtain the 1H NMR of the product. Label the proton signals. Following the procedure described in the handout, a student obtained 0.8 g of methyl m-nitrobenzoate. The limiting reagent in this procedure is Write your response here... The theoretical yield is Type your answer here mmols and Type your answer here grams. The percent yield is Type your answer here Use the correct # of significant figures

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image_2

Step: 3

blur-text-image_3

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

Mass Transfer Processes Modeling Computations And Design

Authors: P. A. Ramachandran

1st Edition

0134675622, 978-0134675626

More Books

Students also viewed these Chemical Engineering questions

Question

identify the major sales promotion types, including objectives

Answered: 1 week ago

Question

1-8 What is cultural competence? [LO-6]

Answered: 1 week ago

Question

1-5 What is an ethical dilemma? [LO-5]

Answered: 1 week ago