
Concept explainers
(a)
Interpretation:
Condensed structures and the systematic names for all the
Concept introduction:
- Molecular structure is the arrangement of
chemical bonds between atoms in a molecule (or in an ion or radical with multiple atoms), specifically which atoms are chemically bonded to what other atoms with what kind of chemical bond. From the IUPAC name of compound its structure can be easily drawn. - IUPAC name consists of three parts in major namely Prefix suffix and root word.
- Prefix represents the substituent present in the molecule and its position in the root name.
- Suffix denotes the presence of
functional group if any in the molecule. It can be an alkene,alkyne , alcohol,carboxylic acid , alcohol etc. - For alkenes, suffix will be ‘ene’.
- Root word represents the longest continuous carbon skeleton of the organic molecule.
- When a molecule consists of cyclic structure, the root word of the molecule is prefixed with cyclo, if it is two cyclic structure combined then prefixed with bicyclo.
- E-Z designators are used as like cis-trans terminology for non-similar groups attached alkenes.
- In E-Z designations, the groups attached to vinylic positions are checked by their priority on the basis of higher molecular weight. If the higher priority groups are on the same sides, then the configuration is designated as Z. If the higher priority groups are on the opposite sides, then the configuration is designated as E.
- Condensed Formula: Molecular formula where the symbols of atoms are listed in order as they appear in the respective molecular structure with bonded dash omitted or limited it is called the condensed structure.
(b)
Interpretation:
The E and Z isomers of alkenes should be identified for the given compound with the molecular formula
Concept introduction:
- Molecular structure is the arrangement of chemical bonds between atoms in a molecule (or in an ion or radical with multiple atoms), specifically which atoms are chemically bonded to what other atoms with what kind of chemical bond. From the IUPAC name of compound its structure can be easily drawn.
- IUPAC name consists of three parts in major namely Prefix suffix and root word.
- Prefix represents the substituent present in the molecule and its position in the root name.
- Suffix denotes the presence of functional group if any in the molecule. It can be an alkene, alkyne, alcohol, carboxylic acid, alcohol etc.
- For alkenes, suffix will be ‘ene’.
- Root word represents the longest continuous carbon skeleton of the organic molecule.
- When a molecule consists of cyclic structure, the root word of the molecule is prefixed with cyclo, if it is two cyclic structure combined then prefixed with bicyclo.
- E-Z designators are used as like cis-trans terminology for non-similar groups attached alkenes.
- In E-Z designations, the groups attached to vinylic positions are checked by their priority on the basis of higher molecular weight. If the higher priority groups are on the same sides, then the configuration is designated as Z. If the higher priority groups are on the opposite sides, then the configuration is designated as E.
(c)
Interpretation:
Most stable alkenes has to be identified.
Concept introduction:
The amount of heat released in a hydrogenation reaction is known as heat of hydrogenation
The most stable alkene has the smallest heat of hydrogenation.
The stability of an alkene increases as the number of alkyl substituents bonded to its
The stability of an alkene increases as the number of hydrogen bonded to its
(d)
Interpretation:
Least stable alkene has to be identified.
Concept introduction:
The amount of heat released in a hydrogenation reaction is known as heat of hydrogenation
The most stable alkene has the smallest heat of hydrogenation.
The stability of an alkene increases as the number of alkyl substituents bonded to its
The stability of an alkene increases as the number of hydrogen bonded to its

Trending nowThis is a popular solution!

Chapter 5 Solutions
EBK ORGANIC CHEMISTRY
- Which representation(s) show polymer structures that are likely to result in rigid, hard materials and those that are likely to result in flexible, stretchable, soft materials?arrow_forward3. Enter the molecular weight of the product obtained from the Williamson Ether Synthesis? OH OH & OH excess CH3l Ag₂Oarrow_forwardPlease answer 1, 2 and 3 on the endarrow_forward
- In the box below, specify which of the given compounds are very soluble in polar aprotic solvents. You may select more than one compound. Choose one or more: NaCl NH4Cl CH3CH2CH2CH2CH2CN CH3CH2OH hexan-2-one NaOH CH3SCH3arrow_forwardOn the following structure, select all of the atoms that could ACCEPT a hydrogen bond. Ignore possible complications of aromaticity. When selecting be sure to click on the center of the atom.arrow_forwardRank the compounds below from lowest to highest melting point.arrow_forward
- 18 Question (1 point) Draw the line structure form of the given partially condensed structure in the box provided. :ÖH HC HC H2 ΙΩ Н2 CH2 CH3 CH3 partially condensed formarrow_forwardsomeone else has already submitted the same question on here and it was the incorrect answer.arrow_forwardThe reaction: 2NO2(g) ⇌ N2O4(g) is an exothermic reaction, ΔH=-58.0 kJ/molrxn at 0°C the KP is 58.If the initial partial pressures of both NO2(g) and N2O4(g) are 2.00 atm:A) Is the reaction at equilibrium? If not, what is the value of Q? B) Which direction will the reaction go to reach equilibrium? C) Use an ICE table to find the equilibrium pressures.arrow_forward
- The dissociation of the weak acid, nitrous acid, HNO2, takes place according to the reaction: HNO2 (aq) ⇌ H+(aq) + NO2–(aq) K=7.2 X 10-4 When 1.00 mole of HNO2 is added to 1.00 L of water, the H+ concentration at equilibrium is 0.0265 M.A) Calculate the value of Q if 1.00 L of water is added? B) How will reaction shift if 1.00 L of water is added?arrow_forwardSuppose a certain copolymer elastomeric material “styrene-butadiene rubber”) contains styrene ("S") monomers –(C8H8)– and butadiene ("B") monomers –(C4H6)– and that their numerical ratio S:B = 1:8. What is the mass ratio mS:mB of the two monomers in the material? What is the molecular mass M of a macromolecule of this copolymer with degree of polymerization n = 60,000? Data: AC = 12.01 u, AH = 1.008 u.arrow_forwardLab Questions from Lab: Gravimetric Determination of Calcium as CaC2O4•H2O What is the purpose of the methyl red indicator? Why does a color change to yellow tell you that the reaction is complete? Why is the precipitate rinsed with ice-cold water in step 4? Why not room temperature or hot water? Why is it important that the funnels be placed in a desiccator before weighing (steps 1 and 5)?arrow_forward
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistry: An Atoms First ApproachChemistryISBN:9781305079243Author:Steven S. Zumdahl, Susan A. ZumdahlPublisher:Cengage Learning


