Question f(iv) A compound X of molecular mass 103 contains carbon, hydrogen, nitrogen and oxygen only. Onanalysis it is found to contain 46.6 % carbon, 8.74 % hydrogen, 13.6 %, nitrogen and 31.1 %oxygen.(R.A.M(a) Calculate:(i)7.O= 16, C= 12, H=1.N3 14).The empirical formula of X(ii)The molecular formular of X.(b) How could the presence of the nitrogen in the compound be identified. Give reagentis andexpected results only.(c) The compound X has both an amino and a carboxylic acid functional groups and is opticallyactive,(i)(ii)What is a functional group?...Write the structure of the carboxylic acid functional group(ii)Propose the structure for X...(d)Draw a spread out structure of X and put an asterisk on the asymmetric carbon atom(e)Give reagents and observations of a simple chemical test to identify the presence of theamino group in a compound.(f) Ethanoyl chloride (CH, COCI) reacts with benzene. According to the equation below to givephenyl ethanone (acetophenone).CCH, HCIYCH,CCI(i) Identify the reagent Y and give the condition for the reaction.Reagent Y:.Conditions:..(ii) Explain why the reagent must be used dry?(iii) What substance(s) would be obtained when phenylethanone (acetophernone) reactswith:А: NaOHЛ,B: 2,4-dinitropheny!hydrazine.C: Hydrogen cyanide gas.(iv) If 2 g of ethanoyl chloride were used and 1.95 g of phenyiethanone obtained(RAM: CI= 35.5; C = 12; O = 16)Calculate:A: The theoretical yield.B:The percentage yield.

(iv) The reaction of benzene with ethanoyl chloride to give phenyl ethanoate is given as:C6H6…

(f) Ethanoyl chloride (CH, COCI) reacts with benzene. According to the equation below to give phenyl ethanone (acetophenone). CH, HCI CH,C CI (i) Identify the reagent Y and give the condition for the reaction. Reagent Y:. Conditions... (ii) Explain why the reagent must be used dry? (iii) What substance(s) would be obtained when phenylethanone (acetophernone) reacts with: A: NAOH/I, B: 2,4-dinitropheny!hydrazine. C: Hydrogen cyanide gas.. (iv) If 2 g of ethanoyl chloride were used and 1.95 g of phenyiethanone obtained (RAM: CI= 35.5; C = 12; O = 16) Calculate: A: The theoretical yield. B: The percentage yield..

(f) Ethanoyl chloride (CH, COCI) reacts with benzene. According to the equation below to give phenyl ethanone (acetophenone). CH, HCI CH,C CI (i) Identify the reagent Y and give the condition for the reaction. Reagent Y:. Conditions... (ii) Explain why the reagent must be used dry? (iii) What substance(s) would be obtained when phenylethanone (acetophernone) reacts with: A: NAOH/I, B: 2,4-dinitropheny!hydrazine. C: Hydrogen cyanide gas.. (iv) If 2 g of ethanoyl chloride were used and 1.95 g of phenyiethanone obtained (RAM: CI= 35.5; C = 12; O = 16) Calculate: A: The theoretical yield. B: The percentage yield..

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter3: Chemical Bonds

Section: Chapter Questions

Problem 3.115P

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Concept explainers

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.

Question

Question f(iv)

A compound X of molecular mass 103 contains carbon, hydrogen, nitrogen and oxygen only. On
analysis it is found to contain 46.6 % carbon, 8.74 % hydrogen, 13.6 %, nitrogen and 31.1 %
oxygen.
(R.A.M
(a) Calculate:
(i)
7.
O= 16, C= 12, H=1.N3 14).
The empirical formula of X
(ii)The molecular formular of X.
(b) How could the presence of the nitrogen in the compound be identified. Give reagentis and
expected results only.
(c) The compound X has both an amino and a carboxylic acid functional groups and is optically
active,
(i)
(ii)
What is a functional group?...
Write the structure of the carboxylic acid functional group
(ii)
Propose the structure for X...
(d)
Draw a spread out structure of X and put an asterisk on the asymmetric carbon atom
(e)
Give reagents and observations of a simple chemical test to identify the presence of the
amino group in a compound.
(f) Ethanoyl chloride (CH, COCI) reacts with benzene. According to the equation below to give
phenyl ethanone (acetophenone).
CCH, HCI
Y
CH,C
CI
(i) Identify the reagent Y and give the condition for the reaction.
Reagent Y:.
Conditions:..
(ii) Explain why the reagent must be used dry?
(iii) What substance(s) would be obtained when phenylethanone (acetophernone) reacts
with:
А: NaOHЛ,
B: 2,4-dinitropheny!hydrazine.
C: Hydrogen cyanide gas.
(iv) If 2 g of ethanoyl chloride were used and 1.95 g of phenyiethanone obtained
(RAM: CI= 35.5; C = 12; O = 16)
Calculate:
A: The theoretical yield.
B:
The percentage yield.

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