Homework Help is Here – Start Your Trial Now!
Science
Chemistry
What is the CRUDE PRODUCT, and the crude EXPERIMENTAL YIELD in this experiment.

What is the CRUDE PRODUCT, and the crude EXPERIMENTAL YIELD in this experiment.

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
See similar textbooks
icon
Related questions
Question
100%

What is the CRUDE PRODUCT, and the crude EXPERIMENTAL YIELD in this experiment.

Ph 1. NaOH, MW 2. НСI H2N NH2 HN, NH Ph Major Minor
Transcribed Image Text:Ph 1. NaOH, MW 2. НСI H2N NH2 HN, NH Ph Major Minor
Experiment 10: Microwave Chemistry-Synthesis of Phenytoin (Data Sheet) Running the reaction 0.70 g of urea, 1.30 g of benzil, and 0.61 g of sodium hydroxide were ground together in a mortar yielding a yellow power The mixture was transferred to a 25 mL beaker After covering the beaker with a watch glass, it was placed in the microwave and heated for 90 seconds with 280 Watt The mixture melted and turned pale yellow Product isolation After cooling, the mixture is transferred to a mortar and ground into a powder The solids were extracted twice with 5 mL of 95 % ethanol The combined organic layers were placed in a beaker and 4 mL of 6 M HCl added dropwise; the pH value was below pH=2 and a white precipitate was formed The solids were isolated by vacuum filtration using a Hirsch funnel and rinsed with 2 mL 95 % ethanol The crude was recrystallized from 10 mL of ethanol:water (8:2) The fine needles were isolated by vacuum filtration using a Hirsch funnel and rinsed with 1 mL 95 % ethanol Product characterization 1.65 g of the crude product 1.25 g of the final product M.p.: 296.5-299.2 °C
Transcribed Image Text:Experiment 10: Microwave Chemistry-Synthesis of Phenytoin (Data Sheet) Running the reaction 0.70 g of urea, 1.30 g of benzil, and 0.61 g of sodium hydroxide were ground together in a mortar yielding a yellow power The mixture was transferred to a 25 mL beaker After covering the beaker with a watch glass, it was placed in the microwave and heated for 90 seconds with 280 Watt The mixture melted and turned pale yellow Product isolation After cooling, the mixture is transferred to a mortar and ground into a powder The solids were extracted twice with 5 mL of 95 % ethanol The combined organic layers were placed in a beaker and 4 mL of 6 M HCl added dropwise; the pH value was below pH=2 and a white precipitate was formed The solids were isolated by vacuum filtration using a Hirsch funnel and rinsed with 2 mL 95 % ethanol The crude was recrystallized from 10 mL of ethanol:water (8:2) The fine needles were isolated by vacuum filtration using a Hirsch funnel and rinsed with 1 mL 95 % ethanol Product characterization 1.65 g of the crude product 1.25 g of the final product M.p.: 296.5-299.2 °C
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Knowledge Booster
Sample Preparation in Analytical Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY
SEE MORE TEXTBOOKS