(a)
Interpretation:
IUPAC name for the acrylic acid has to be given.
Concept Introduction:
For naming a
IUPAC rules for naming a carboxylic acid:
- The longest parent carbon chain is identified that includes the carboxyl group.
- The parent chain name is changed by replacing the suffix “-e” with “-oic acid”.
- Numbering is done in a way that the carboxyl group is designated as number 1. This is not indicated in the part of the name because for
aldehyde , the carboxyl carbon is always numbered 1. - The identity and location of substituents if any has to be determined and this information has to be added in front of the IUPAC name.
- If the carboxyl
functional group is attached to a ring of carbon atoms, the ring is named and “-carboxylic acid” is added as suffix. - If the compound contains two carboxyl groups, then suffix “-dioic acid” is added after the parent alkane name.
(a)

Answer to Problem 5.33EP
IUPAC name of acrylic acid is propenoic acid.
Explanation of Solution
Structure of acrylic acid is,
The longest continuous carbon chain has to be found out with the carboxyl group in it. In this it is a three carbon chain. The structure contains a double bond between carbon atoms. Hence, the parent is propene. The given structure contains a carboxyl group. The carboxylic acid is named by replacing the suffix “-e” with suffix “-oic acid”. This gives the name of carboxylic acid as propenoic acid.
Looking for substituents it is found that there are no substituents present on the carbon chain. Hence, the IUPAC name of the acrylic acid is propenoic acid.
IUPAC name of acrylic acid is given.
(b)
Interpretation:
IUPAC name for the lactic acid has to be given.
Concept Introduction:
For naming a carboxylic acid in IUPAC nomenclature, the suffix “-oic” is added to the parent alkane name.
IUPAC rules for naming a carboxylic acid:
- The longest parent carbon chain is identified that includes the carboxyl group.
- The parent chain name is changed by replacing the suffix “-e” with “-oic acid”.
- Numbering is done in a way that the carboxyl group is designated as number 1. This is not indicated in the part of the name because for aldehyde, the carboxyl carbon is always numbered 1.
- The identity and location of substituents if any has to be determined and this information has to be added in front of the IUPAC name.
- If the carboxyl functional group is attached to a ring of carbon atoms, the ring is named and “-carboxylic acid” is added as suffix.
- If the compound contains two carboxyl groups, then suffix “-dioic acid” is added after the parent alkane name.
(b)

Answer to Problem 5.33EP
IUPAC name of lactic acid is 2-hydroxypropanoic acid.
Explanation of Solution
Structure of lactic acid is,
The longest continuous carbon chain has to be found out with the carboxyl group in it. In this it is a three carbon chain. The parent alkane is propane. The given structure contains a carboxyl group. The carboxylic acid is named by replacing the suffix “-e” with suffix “-oic acid”. This gives the name of carboxylic acid as propanoic acid.
Looking for substituents it is found that there is a hydroxyl group at the second carbon atom. Hence, the IUPAC name of the lactic acid is 2-hydroxypropanoic acid.
IUPAC name of lactic acid is given.
(c)
Interpretation:
IUPAC name for the maleic acid has to be given.
Concept Introduction:
For naming a carboxylic acid in IUPAC nomenclature, the suffix “-oic” is added to the parent alkane name.
IUPAC rules for naming a carboxylic acid:
- The longest parent carbon chain is identified that includes the carboxyl group.
- The parent chain name is changed by replacing the suffix “-e” with “-oic acid”.
- Numbering is done in a way that the carboxyl group is designated as number 1. This is not indicated in the part of the name because for aldehyde, the carboxyl carbon is always numbered 1.
- The identity and location of substituents if any has to be determined and this information has to be added in front of the IUPAC name.
- If the carboxyl functional group is attached to a ring of carbon atoms, the ring is named and “-carboxylic acid” is added as suffix.
- If the compound contains two carboxyl groups, then suffix “-dioic acid” is added after the parent alkane name.
(c)

Answer to Problem 5.33EP
IUPAC name of maleic acid is cis-butenedioic acid.
Explanation of Solution
Structure of maleic acid is,
The longest continuous carbon chain has to be found out with the carboxyl group in it. In this it is a four carbon chain. The structure contains a double bond in it. The parent carbon chain is butene. The given structure contains two carboxyl groups. The carboxylic acid is named by adding suffix “-dioic acid”. This gives the name of carboxylic acid as butenedioic acid.
Looking for substituents it is found that there are no substituents present in the carbon chain. Stereochemistry is possible across the double bond. As the two hydrogen atoms are on the same side of double bond, the configuration at the double bond is “cis”. This has to be included in the name to get the IUPAC name. IUPAC name of the maleic acid is found as cis-butenedioic acid.
IUPAC name of maleic acid is given.
(d)
Interpretation:
IUPAC name for the glycolic acid has to be given.
Concept Introduction:
For naming a carboxylic acid in IUPAC nomenclature, the suffix “-oic” is added to the parent alkane name.
IUPAC rules for naming a carboxylic acid:
- The longest parent carbon chain is identified that includes the carboxyl group.
- The parent chain name is changed by replacing the suffix “-e” with “-oic acid”.
- Numbering is done in a way that the carboxyl group is designated as number 1. This is not indicated in the part of the name because for aldehyde, the carboxyl carbon is always numbered 1.
- The identity and location of substituents if any has to be determined and this information has to be added in front of the IUPAC name.
- If the carboxyl functional group is attached to a ring of carbon atoms, the ring is named and “-carboxylic acid” is added as suffix.
- If the compound contains two carboxyl groups, then suffix “-dioic acid” is added after the parent alkane name.
(d)

Answer to Problem 5.33EP
IUPAC name of glycolic acid is 2-hydroxyethanoic acid.
Explanation of Solution
Structure of glycolic acid is,
The longest continuous carbon chain has to be found out with the carboxyl group in it. In this it is a two carbon chain. The parent alkane is ethane. The given structure contains a carboxyl group. The carboxylic acid is named by replacing the suffix “-e” with suffix “-oic acid”. This gives the name of carboxylic acid as ethanoic acid.
Looking for substituents it is found that there is a hydroxyl group at the second carbon atom. Hence, the IUPAC name of the glycolic acid is 2-hydroxyethanoic acid.
IUPAC name of glycolic acid is given.
Want to see more full solutions like this?
Chapter 5 Solutions
EBK ORGANIC AND BIOLOGICAL CHEMISTRY
- Given a complex reaction with rate equation v = k1[A] + k2[A]2, what is the overall reaction order?arrow_forwardPlease draw the structure in the box that is consistent with all the spectral data and alphabetically label all of the equivalent protons in the structure (Ha, Hb, Hc....) in order to assign all the proton NMR peaks. The integrations are computer generated and approximate the number of equivalent protons. Molecular formula: C13H1802 14 13 12 11 10 11 (ppm) Structure with assigned H peaks 2.08 3.13arrow_forwardCHEMICAL KINETICS. One of the approximation methods for solving the rate equation is the steady-state approximation method. Explain what it consists of.arrow_forward
- CHEMICAL KINETICS. One of the approximation methods for solving the rate equation is the limiting or determining step approximation method. Explain what it consists of.arrow_forwardCHEMICAL KINETICS. Indicate the approximation methods for solving the rate equation.arrow_forwardTRANSMITTANCE เบบ Please identify the one structure below that is consistent with the 'H NMR and IR spectra shown and draw its complete structure in the box below with the protons alphabetically labeled as shown in the NMR spectrum and label the IR bands, including sp³C-H and sp2C-H stretch, indicated by the arrows. D 4000 OH LOH H₂C CH3 OH H₂C OCH3 CH3 OH 3000 2000 1500 HAVENUMBERI-11 1000 LOCH3 Draw your structure below and label its equivalent protons according to the peak labeling that is used in the NMR spectrum in order to assign the peaks. Integrals indicate number of equivalent protons. Splitting patterns are: s=singlet, d=doublet, m-multiplet 8 3Hb s m 1Hd s 3Hf m 2Hcd 2Had 1He 鄙视 m 7 7 6 5 4 3 22 500 T 1 0arrow_forward
- Relative Transmittance 0.995 0.99 0.985 0.98 Please draw the structure that is consistent with all the spectral data below in the box and alphabetically label the equivalent protons in the structure (Ha, Hb, Hc ....) in order to assign all the proton NMR peaks. Label the absorption bands in the IR spectrum indicated by the arrows. INFRARED SPECTRUM 1 0.975 3000 2000 Wavenumber (cm-1) 1000 Structure with assigned H peaks 1 3 180 160 140 120 100 f1 (ppm) 80 60 40 20 0 C-13 NMR note that there are 4 peaks between 120-140ppm Integral values equal the number of equivalent protons 10.0 9.0 8.0 7.0 6.0 5.0 4.0 3.0 2.0 1.0 0.0 fl (ppm)arrow_forwardCalculate the pH of 0.0025 M phenol.arrow_forwardIn the following reaction, the OH- acts as which of these? NO2-(aq) + H2O(l) ⇌ OH-(aq) + HNO2(aq)arrow_forward
- Using spectra attached, can the unknown be predicted? Draw the predicition. Please explain and provide steps. Molecular focrmula:C16H13ClOarrow_forwardCalculate the percent ionization for 0.0025 M phenol. Use the assumption to find [H3O+] first. K = 1.0 x 10-10arrow_forwardThe Ka for sodium dihydrogen phosphate is 6.32 x 10-8. Find the pH of a buffer made from 0.15 M H2PO4- and 0.25 M HPO42- .arrow_forward
- Organic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningChemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage Learning
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningChemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co




