Nown Tipographical Erors
Knowen Typagryfical Errorz
Tiepoes
List of Mistakes

Maintained by Steven Hardinger of the Department of Chemistry & Biochemistry, UCLA
Introduction Bounty Offered Error List
2209
error bounty points awarded to 1326
students since Winter 2000 quarter.

Introduction

These errors have been discovered by students and are listed here for your convenience. Sometimes errors are corrected between subsequent printings of the same edition of a text.  Because of this you may not see some of the errors listed below. If you find more errors, please bring them to my attention by email.

My thanks to the students who have brought these errors to my attention.

The errors on this list are true typographical errors, not differences in style. For example, these texts contain a number of naked protons (H+). Although I strongly prefer that you use H3O+ instead of H+, any naked protons in these texts are generally not considered errors.

Not all errors are listed here. Errors in web site content (exam keys, Discussion Section Problems solutions, etc.) are usually handled by posting a revised version of the erroneous document.

Concerning pKa values: The pKa of water is 14.0 (not 15.7). The pKa of H3O+ is 0 (not -1.8). Make this correction everywhere you see these pKa values. We cannot accept any error bounty submissions for these pKa values. In addition, pKa is solvent-dependent. So you might see different pKa values for the same molecule, even though the solvent hasn't been specified. These are not errors. For Chem 14C and 14D we use pKa values assuming water as the solvent. These different pKa values are not errors, and cannot earn error bounty points.


Bounty Offered

Error List

Textbooks
Lecture Supplements and Thinkbooks
Practice exams, practice exam keys, OCATSA, and Illustrated Glossary of Organic Chemistry: When errors are found, the document or web site is revised. If you think you've found an error, please check the website or document online to see if the error been corrected.

Organic Chemistry: Structure & Function, 7th edition (Vollhardt and Schore) Previous editions are outdated and not eligible for error bounty points.
Concerning pKa values: The pKa of water is 14.0 (not 15.7). The pKa of H3O+ is 0 (not -1.8). Make this correction everywhere you see these pKa values. We cannot accept any error bounty submissions for these pKa values. In addition, pKa is solvent-dependent. So you might see different pKa values for the same molecule, even though the solvent hasn't been specified. These are not errors. For Chem 14C and 14D we use pKa values assuming water as the solvent. These different pKa values are not errors, and cannot earn error bounty points.

Study Guide for Organic Chemistry: Structure & Function, 7th edition (Vollhardt and Schore) Previous editions are outdated and not eligible for error bounty points.
Concerning pKa values: The pKa of water is 14.0 (not 15.7). The pKa of H3O+ is 0 (not -1.8). Make this correction everywhere you see these pKa values. We cannot accept any error bounty submissions for these pKa values. In addition, pKa is solvent-dependent. So you might see different pKa values for the same molecule, even though the solvent hasn't been specified. These are not errors. For Chem 14C and 14D we use pKa values assuming water as the solvent. These different pKa values are not errors, and cannot earn error bounty points.

Chem 14C Thinkbook, 2016 (14th) edition  Previous editions are outdated and not eligible for error bounty points.
Concerning pKa values: The pKa of water is 14.0 (not 15.7). The pKa of H3O+ is 0 (not -1.8). Make this correction everywhere you see these pKa values. We cannot accept any error bounty submissions for these pKa values. In addition, pKa is solvent-dependent. So you might see different pKa values for the same molecule, even though the solvent hasn't been specified. These are not errors. For Chem 14C and 14D we use pKa values assuming water as the solvent. These different pKa values are not errors, and cannot earn error bounty points.

  • Lecture 10: Mass Spectrometry Part 2
    • Page 143, Practice Problem 11 solution: The molecular formula for sorbitol is C6H14O6.
  • Lecture 12: Infrared Spectroscopy Part 2
    • Page 153, Concept Focus Question 3(b) solution, zone 1, terminal alkyne C-H: Delete "No triple bond peak in zone 3".
  • Lecture 13: Proton NMR Spectroscopy Part 1
    • Page 164, Concept Focus Question 1: Delete the extraneous methylene definition of part (f).
  • Lecture 14: Proton NMR Spectroscopy Part 2
    • Page 170, Practice Problem 1(c): Change N(CH3)3 to N(CH3)2.
  • Lecture 16B: Solving Spectroscopy Problems Part 1
    • Page 183, Concept Focus Question 1 solution: In the second line of the formula determination table change 24 - 18 - 0 = 8 to 24 - 16 - 0 = 8.
    • Page 185, 1.64 ppm implications: The last implication is missing a subscript, and should be 2 x CH in (CH2)2CHCH.
    • Page 186, 1.64 ppm implications: The last implication is missing a subscript, and should be 2 x CH in (CH2)2CHCH.
    • Page 187, 1.64 ppm implications: The last implication is missing a subscript, and should be 2 x CH in (CH2)2CHCH.
    • Page 193, Practice Problem 14: Delete this problem. It is a duplicate of Practice Problem 11.
  • Lecture 17: Solving Spectroscopy Problems Part 2
    • Page 211, IR spectrum: In zone 2, delete 'not enough oxygens'. In zone 4, change 'Not enough oxygens for an ester. Therefore must be a ketone' to 'Could be a ketone or an ester".
    • Page 222, Practice Problem 11(a): The correct 1H-NMR spectrum is 4.50 ppm (singlet; integral = 1.0), 3.59 ppm (quartet; integral = 1), 3.38 ppm (singlet; integral = 1.5), and 1.21 ppm (triplet; integral = 1.5).
    • Page 222, Practice Problem 11(b): The correct 1H-NMR spectrum is 3.70 ppm (triplet; integral = 2.0), 3.54 ppm (triplet; integral = 2.0), 3.48 ppm (quartet; integral = 2.0), 3.10 ppm (singlet; integral = 1.0), and 1.21 ppm (triplet; integral = 3.0).
    • Page 223, H-NMR table: The last implication listed under 3.6 ppm is missing an underline. It should be 4 x CH in CH(CH)3.
  • Lecture 18: 13C-NMR, 2D-NMR, and MRI
    • Page 253, Practice Problem solution 10: The second to last molecule's 13C-NMR spectrum contains three singlets.
  • Lecture 20: Noncovalent Forces Part 1
    • Page 278, Practice Problem 1: "Because fluoride is a single atom, it has no bond dipole."
    • Page 278, Practice Problem 11 solution: At the end of the first paragraph... "A bond dipole-bond dipole interaction requires two covalent bonds."
  • Lecture 23: Introduction to Structure and Reactivity - Organic Acids & Bases Part 2
    • Page 302, Practice Problem 10 solution: The pKa of water is 14 (not 15.7).
  • Lecture 24: Biomolecules Survey II - Lipids
    • Page 324, Practice Problem 3 solution: The general prostaglandin structure should have eight carbons in the bottom chain. The carboxylic acid group in the upper chain is missing its OH.
  • Appendix B: Selected pKa Values
    • Page 356: The pKa of H2O is 14 (not 15.7). The pKa of H3O+ is 0 (not -1.8).
    • Page 359: The pKa of H2O is 14 (not 15.7).

Chem 14C Lecture Supplement, 2016 (10th) edition  Previous editions are outdated and not eligible for error bounty points.
Concerning pKa values: The pKa of water is 14.0 (not 15.7). The pKa of H3O+ is 0 (not -1.8). Make this correction everywhere you see these pKa values. We cannot accept any error bounty submissions for these pKa values. In addition, pKa is solvent-dependent. So you might see different pKa values for the same molecule, even though the solvent hasn't been specified. These are not errors. For Chem 14C and 14D we use pKa values assuming water as the solvent. These different pKa values are not errors, and cannot earn error bounty points.

Chem 14D Thinkbook, 2017 (15th) edition  Previous editions are outdated and not eligible for error bounty points.
Concerning pKa values: The pKa of water is 14.0 (not 15.7). The pKa of H3O+ is 0 (not -1.8). Make this correction everywhere you see these pKa values. We cannot accept any error bounty submissions for these pKa values. In addition, pKa is solvent-dependent. So you might see different pKa values for the same molecule, even though the solvent hasn't been specified. These are not errors. For Chem 14C and 14D we use pKa values assuming water as the solvent. These different pKa values are not errors, and cannot earn error bounty points.




During collapse of an oxyanionic tetrahedral intermediate (tetrahedral adduct). Example:

By E2 elimination from a beta-hydroxy carbonyl compound, resulting in formation of a new carbon-carbon pi bond conjugated with the carbonyl group. Example:



Chem 14D Lecture Supplement, 2017 (5th) edition Previous editions are outdated and not eligible for error bounty points.
Concerning pKa values: The pKa of water is 14.0 (not 15.7). The pKa of H3O+ is 0 (not -1.8). Make this correction everywhere you see these pKa values. We cannot accept any error bounty submissions for these pKa values. In addition, pKa is solvent-dependent. So you might see different pKa values for the same molecule, even though the solvent hasn't been specified. These are not errors. For Chem 14C and 14D we use pKa values assuming water as the solvent. These different pKa values are not errors, and cannot earn error bounty points.