Solubility product calculations using the simple algorithms in introductory texts usually produce dramatic and often catastrophic errors because of incomplete dissociation of the salt and complexation by excess ion. Less dramatic but still substantial errors result from neglect of activity coefficients. Solubility equilibria are best taught qualitatively in introductory chemistry, leaving the calculations to higher level courses.
The "Chemistry Teacher Connection" (CTC) is especially for high school chemistry teachers. For only $40/year, it offers an online-only subscription to CLIC along with membership in the Division of Chemical Education, normally $65/year. CTC subscribers receive access to all articles and supplements from 1996 through the current issue.
Through special arrangement with the ACS, JCE High School CLIC is now able to provide subscribers with online access to Chemical & Engineering News articles that have been selected specifically for secondary science instructors and their students.
Occasionally, collections of JCE back issues become available for donation to individual teachers, schools, or libraries. JCE matches collections with interested recipients. Recipients pay shipping costs or pick up the collection.