2nd question EKG HDA+ ShiftNB66PROCEDURE1. Place 1.0 g phenol (C6H5OH), 15.0 mL 10% NaOH solution, and 1.8 mLbenzoyl chloride in a 50 mL mixing cylinder.2. Shake the mixture vigorously for 10-15 min. Phenyl Benzoate is formedas a white precipitate.3. Filter the Phenyl Benzoate applying Vacuum Filtration Method and washthe precipitate twice with 10 mL distilled water.4. While filtrating, set up the reflux apparatus for carrying outrecrystallization.5. Place the Phenyl Benzoate crystals in a 250 mL round bottom flask, add10 mL ethanol, put 3-4 boiling chips and start heating to dissolve thecrystals under reflux system.6. Cool the hot mixture till room temperature as soon as the roomtemperature reaches use ice water bath to continue cooling and do thiscooling process during 5 min to increase yield of ester.7. Weigh up a filter paper.8. Filter the Phenyl Benzoate crystals applying Vacuum Filtration Method.Wash the crystais with 5 mL of cold ethanol. Be careful: Do not useethano! more than 10 mL to avoid any loss of phenyl benzoate crystals.9. Place the filter paper with phenyl benzoate crystals on a watch glass.10. The phenyl benzoate crystals should be dried during one day.11. Weigh up filter paper with dry white phenyl benzoate crystals.12. Record melting point of phenyl benzoate crystals.13. Knowing the actual yield of phenyl benzoate, find out the percent yieldof the ester.CLEAN-UP AND DISPOSAL- ) - 68LABORATORY SHEETESTERIFICATION REACTIONNAME, SURNAME:PARTNER NAME:Table 1. Experimental dataExperimental DataMass of the filter paper [g]Mass of the filter paper + Mass ofthe ester (g1.331,11Mass of the ester [g]Melting point of the ester (°C)69.31.Write the esterification reaction between benzoyl chloride and phenol.2.Calculate the theoretical yield of the precipitate and compare it with theactual yield. What is the percentage yield? What are the factors that canaffect the percentage yield? Explain your results.

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Answered: actual yield. What is the percentage…

actual yield. What is the percentage yield? What are the factors that can affect the percentage yield? Explain your results.

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...

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Question

2nd question

E
K
G H
D
A
+ Shift
N
B
66
PROCEDURE
1. Place 1.0 g phenol (C6H5OH), 15.0 mL 10% NaOH solution, and 1.8 mL
benzoyl chloride in a 50 mL mixing cylinder.
2. Shake the mixture vigorously for 10-15 min. Phenyl Benzoate is formed
as a white precipitate.
3. Filter the Phenyl Benzoate applying Vacuum Filtration Method and wash
the precipitate twice with 10 mL distilled water.
4. While filtrating, set up the reflux apparatus for carrying out
recrystallization.
5. Place the Phenyl Benzoate crystals in a 250 mL round bottom flask, add
10 mL ethanol, put 3-4 boiling chips and start heating to dissolve the
crystals under reflux system.
6. Cool the hot mixture till room temperature as soon as the room
temperature reaches use ice water bath to continue cooling and do this
cooling process during 5 min to increase yield of ester.
7. Weigh up a filter paper.
8. Filter the Phenyl Benzoate crystals applying Vacuum Filtration Method.
Wash the crystais with 5 mL of cold ethanol. Be careful: Do not use
ethano! more than 10 mL to avoid any loss of phenyl benzoate crystals.
9. Place the filter paper with phenyl benzoate crystals on a watch glass.
10. The phenyl benzoate crystals should be dried during one day.
11. Weigh up filter paper with dry white phenyl benzoate crystals.
12. Record melting point of phenyl benzoate crystals.
13. Knowing the actual yield of phenyl benzoate, find out the percent yield
of the ester.
CLEAN-UP AND DISPOSAL
- ) -

68
LABORATORY SHEET
ESTERIFICATION REACTION
NAME, SURNAME:
PARTNER NAME:
Table 1. Experimental data
Experimental Data
Mass of the filter paper [g]
Mass of the filter paper + Mass of
the ester (g
1.33
1,11
Mass of the ester [g]
Melting point of the ester (°C)
69.3
1.
Write the esterification reaction between benzoyl chloride and phenol.
2.
Calculate the theoretical yield of the precipitate and compare it with the
actual yield. What is the percentage yield? What are the factors that can
affect the percentage yield? Explain your results.

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