Versioning History

This page provides a record of edits and changes made to this book since its initial publication in the BC Open Textbook Collection. Whenever edits or updates are made, we make the required changes in the text and provide a record and description of those changes here. If the change is minor, the version number increases by 0.1. However, if the edits involve substantial updates, the version number goes up to the next full number. The files on our website always reflect the most recent version, including the Print on Demand copy.

If you find an error in this book, please fill out the Report an Open Textbook Error form. If the book was produced in partnership with BCcampus, we will contact the author, make the necessary changes, and replace all file types as soon as possible. If we did not produce the book, we will make note of the error on this page and contact the original producer of the textbook. Once we receive the updated files, this Versioning History page will be updated to reflect the edits made.

Version Date Change Details
1.1 September 15, 2014 Book added to the BC Open Textbook Collection.
1.2 September 17/15 Typos in the Conversion of Units section (pp 52-60).

Division sign missing in all examples in the PDF of text.

Corrections made.
1.3 May 15, 2017 Links to videos updated.

New file types added: digital .pdf and .odt files.

The updated videos are:

  • Chapter 1: Some Basic Definitions – “The Chemical World”
  • Chapter 2: Significant Figures – “Significant Figures”
  • Chapter 2: Converting Units – “Unit Conversion”
  • Chapter 5: Stoichiometry – “Stoichiometry”
  • Chapter 6: Molecular Effusion and Diffusion – “Diffusion”
  • Chapter 12: Acid-Base Titrations – “Titrations”

Known Issues

In the PDF files for this book, there are a few symbols that do not display properly and are replaced with a question mark (?). This is a known issue, and we are working on getting it fixed. Below is a list of these characters and their locations:

PDF page number What is looks like What it should look like
196 2 c pancake mix ? 1 egg ? 1/2 cup milk
page 196
227 2 mol of C2H6 ? 7 mol of O2 ? 4 mol of CO2 ? 6 mol of H2O
page 227
227 C5H12 + ?2 → 5CO2 + 6H2O; 4.4 mol C5H12 + O82 → 5CO2 + 6H2O; 4.4 mol
331 q?m × ΔT
page 331
581 HC2H3O2 ? H+(aq) + C2H3O2(aq) HC2H3OLeft-right arrows H+(aq) + C2H3O2(aq)
647 H2(g) + Cl2(g) ? 2HCl(g) H2(g) + Cl2(g) Left-right arrows2HCl(g)
861 C4H9Br ? C4H9+ + Br 

C4H9+ + H2O ? C4H8 + H3O+

C4H9Br Left-right arrowsC4H9+ + Br 

C4H9+ + H2Left-right arrowsC4H8 + H3O+

885 ΔS? = ∑nS?(products) – ∑mS?(reactants)

page 885
895 ΔG?
page 895



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Introductory Chemistry- 1st Canadian Edition Copyright © 2014 by Jessie A. Key is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

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