Chemistry Home Page - Dr. John C. Ringen

Welcome to my home page!  On this site, you will find information that relates to my CHEM 110 (Gen. Chem. I), CHEM 150 (Gen. Chem. II), and CHEM 310 (Quantitative Analysis) courses at NYIT.  You will find a ten-year collection of my General Chemistry exams (along with answers), YouTube videos covering many topics that are discussed in my chemistry lectures and chemistry labs, a complete set of all lecture handouts that I use in General Chemistry, and 
many other helpful items and information.
Please note that is a personal web site th
at is hosted by Google Sites, not by NYIT.  I am solely responsible for all content appearing on this site.  Any comments or opinions contained herein are strictly my own personal viewpoints.
Dr. John C. Ringen  -  Associate Professor of Chemistry  -  Life Sciences Department
New York Institute 
of Technology (Old Westbury Campus)

Please scroll down and click on the appropriate hyperlink below to navigate to the web page relating to the course that you are taking now.  Additional links to information of general interest, including certain external web sites, appears below.




If you need help understanding chemistry, a very large number of excellent websites exist, and the list of such sites can quickly become overwhelming.  I have listed three excellent chemistry websites here that show videos of a lecturer explaining numerous topics in chemistry that students often find difficult.  Try each of these three to see if one website is especially helpful to you.

Khan Academy
2. Khan Academy Chemistry main page  (Not recommended - may be too basic for most college students)
3. Khan Academy - AP Chemistry main page   (Click on this link for help with our General Chemistry courses)

Tyler DeWitt

NOTE:  Material in this section is being revised.  Please check back later to see what new items have been added.  Thank you.

1.  Youtube video introduction -
2.  Videos that relate to your chemistry textbook by Whitten (Please click on the hyperlink at the left to find out what this means)

Other Resources

 Click on each hyperlink below to access the information shown.