This link allows you to access a free, down-loadable executable that has
routines that provide information, tutorials, chemical calculators, and
practice problems for selected topics in general chemistry. The routines
do not cover an entire one-year course but focus on quantitative topics
students tend to need supplementary help on in order to master them. The
routines can be used for self-study or as assigned by an instructor.
The link below displays the main menu page of the executable but can not be executed.

The link below is to a self-extracting, zipped copy of all of the files
for the installation. You do not need an unzip routine on your PC.
The file size is 20MB (zipped) and 24 MB (unzipped). Once the file is
downloaded, just follow the on-screen instructions for unzipping the file
which will be named genchem.exe Once the file is unzipped, you will have
a folder named Genchem. Execute Genchem/Installer/setup.exe followed by
installation of the LabVIEW Run-Time Engine and it will be ready to use.