1. The following melting point data were obtained for a series of pure compounds and mixtures. Based on the observed melting points (mp), what is the identity of the unknown compound? Compound Observed mp Compound Observed mp acetamide 81°C unknown 131°-135°C acetanilide 113°-115°C mixture of unknown trans-cinnamiç acid 133°C hippuric acid succinimide thiourea and urea 105°-130°C 187°-188°C mixture of unknown and cinnamic acid mixture of unknown and succinimide 125°-127°C 133°-134°C 176°-178°C urea 132.7°C 100°-125°C
1. The following melting point data were obtained for a series of pure compounds and mixtures. Based on the observed melting points (mp), what is the identity of the unknown compound? Compound Observed mp Compound Observed mp acetamide 81°C unknown 131°-135°C acetanilide 113°-115°C mixture of unknown trans-cinnamiç acid 133°C hippuric acid succinimide thiourea and urea 105°-130°C 187°-188°C mixture of unknown and cinnamic acid mixture of unknown and succinimide 125°-127°C 133°-134°C 176°-178°C urea 132.7°C 100°-125°C
Chapter21: Carboxylic Acid Derivatives: Nucleophilic Acyl Substitution Reactions
Section21.SE: Something Extra
Problem 30VC
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![1. The following melting point data were obtained for a series of pure compounds
and mixtures. Based on the observed melting points (mp), what is the identity
of the unknown compound?
Compound
Observed mp
Compound
Observed
mp
acetamide
acetanilide
81°C
unknown
131°-135°C
113°-115°C
mixture of unknown
trans-cinnamic acid 133°C
hippuric acid
succinimide
thiourea
and urea
105°-130°C
187°-188°C
mixture of unknown
and cinnamic acid
mixture of unknown
125°-127°C
133°-134°C
176°-178°C
132.7°C
and succinimide
100°-125°C
urea
Unknown?](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1d4c262f-bd36-4195-905b-39bdd81c61ea%2F0c67aa5c-6338-45be-9c97-bc030831d7cf%2F18i1k4_processed.jpeg&w=3840&q=75)
Transcribed Image Text:1. The following melting point data were obtained for a series of pure compounds
and mixtures. Based on the observed melting points (mp), what is the identity
of the unknown compound?
Compound
Observed mp
Compound
Observed
mp
acetamide
acetanilide
81°C
unknown
131°-135°C
113°-115°C
mixture of unknown
trans-cinnamic acid 133°C
hippuric acid
succinimide
thiourea
and urea
105°-130°C
187°-188°C
mixture of unknown
and cinnamic acid
mixture of unknown
125°-127°C
133°-134°C
176°-178°C
132.7°C
and succinimide
100°-125°C
urea
Unknown?
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