(a) calculate the theoretical yield, in grams, of trans-9-(2-phenylethenyl) anthracene. (b) Calculate the percent yield Data for the Synthesis of trans-9-(2-phenylethenyl)-anthracene: A Wittig Reaction Mass of filter paper: 0.688 g Mass of filter paper with product: 1.113 g Melting Point of Product: 129-130oC

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter13: The Chemistry Of Solutes And Solutions
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Problem 107QRT
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(a) calculate the theoretical yield, in grams, of trans-9-(2-phenylethenyl) anthracene.

(b) Calculate the percent yield

Data for the Synthesis of trans-9-(2-phenylethenyl)-anthracene: A Wittig Reaction

Mass of filter paper: 0.688 g

Mass of filter paper with product: 1.113 g

Melting Point of Product: 129-130oC

Reagents and Properties
molar mass
bp
(°C)
d.
mp
(°C)
substance
quantity
(g/mol)
(g/mL)
9-anthraldehyde
benzyltriphenyl-
phosphonium chloride
calcium chloride,
0.520 g
0.980 g
206.24
104-105
388.88
1 g
110.99
anhydrous
dichloromethane
18 mL
84.93
40
1.325
130-132
trans-9-(2-phenyl-
ethenyl)anthracene*
2-propanol
50% sodium hydroxide
280.4
20 mL
60.10
82
0.785
1.3 mL
* product
Transcribed Image Text:Reagents and Properties molar mass bp (°C) d. mp (°C) substance quantity (g/mol) (g/mL) 9-anthraldehyde benzyltriphenyl- phosphonium chloride calcium chloride, 0.520 g 0.980 g 206.24 104-105 388.88 1 g 110.99 anhydrous dichloromethane 18 mL 84.93 40 1.325 130-132 trans-9-(2-phenyl- ethenyl)anthracene* 2-propanol 50% sodium hydroxide 280.4 20 mL 60.10 82 0.785 1.3 mL * product
Reagents and Properties
molar mass
bp
(°C)
тр
(°C)
substance
quantity
(g/mol)
9-anthraldehyde
deutero-chloroform
206.24
104-105
1 mL
100 mg
120.39
60.9
potassium bromide
toluene
10 mL
92.14
110.6
Transcribed Image Text:Reagents and Properties molar mass bp (°C) тр (°C) substance quantity (g/mol) 9-anthraldehyde deutero-chloroform 206.24 104-105 1 mL 100 mg 120.39 60.9 potassium bromide toluene 10 mL 92.14 110.6
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