(Copyright assigned in November 1999 to Western Washington University)
WinQual is a laboratory simulation in which students study inorganic qualitative
analysis. The program simulates experiments involving the chemistry of
seven cations and four anions. Students can choose to determine the composition
of unknowns involving these ions, or can start with water to explore their
chemistry. 1905 randomly chosen unknowns are available at five different
levels of difficulty.
Students work exactly as they would in a real lab, adding compounds,
heating, centrifuging, decanting samples, and performing various tests
to investigate sample composition. Photographs of actual experiments are
displayed for every operation, providing the same visual clues the students
would have in a lab setting.
WinQual has two modes of operation; it can be run either for exploring
reactions or for solving unknowns.
View the program's main screen, where students
work on samples.
WinQual is a 32-bit Windows application, supported on Windows 95,
Windows 98, and Windows NT (DOS and Macintosh versions of this program
were available previously.)
WinQual can be downloaded here free of charge. Unregistered copies allow
exploring reactions and solving the easiest level of unknowns, but do not
allow experiments to be saved in or loaded from files. If you purchase
a license for the software, a registration code will be provided which
allows all of the features to work.
IMPORTANT: If you obtained this software prior to December 1, 1999,
you will need to download another copy because it has been updated since
Begin downloading WinQual now (approximately 1.4
Three types of licenses are available (prices in U.S. Dollars):
Single copy license - $115
Twelve copy license - $325
Unlimited site license - $975, the site license allows students to run
the software at home!
To purchase a license and obtain a registration code, please visit
Enter WinQual in the Express Registration box.
When solving unknowns, students choose the level of difficulty they want
and then receive a randomly generated unknown. The unknown contains up
to seven different cations (Sodium, Nickel, Magnesium, Silver, Chromium,
Zinc, Lead) and up to four anions, (Iodide, Chloride, Nitrate, Sulfate).
Students can add various compounds to samples to aid in determining their
composition. Added compounds can be prepared from the eleven ions used
for unknowns and also from Hydrogen, Ammonium, and Hydroxide ions. Water
and Ammonia can also be added. Nitrate brown ring and Sodium flame tests
are available, and samples can be heated, centrifuged, and decanted. Real
pictures of each sample are shown before and after each operation. A history
of all the operations performed on any sample is available by right-clicking
View the sample history screen, where students can
see what has been done to any sample.
View the answer screen, where students enter their
answer after solving an unknown.
View the results screen, where students compare
their results to the correct answer.
When exploring reactions, the student begins with water instead of an unknown.
The exact same operations and ions are available as when solving unknowns.
The current composition of any sample can be obtained by right-clicking
the sample. This mode is useful for students to explore various reactions
or to recreate a specific lab experiment.
View a screen showing sample composition.
Beginning Exercise and Full Lab Experiment
Both a beginning exercise and a full lab experiment are included with WinQual
as Word 97 documents.
A Beginning Exercise in WinQual (qualintro.doc) will help the
user to quickly become familiar with the power and features of the program.
Inorganic Qualitative Analysis (qualsim.doc) is a full laboratory
experiment using the Explore Reactions mode of the program. It allows the
student to systematically characterize the chemistry of all the program
ions and prepares the student to tackle unknowns.
A utility is available which enables the instructor to build specific
unknowns for students. These unknowns are saved in files which students
can load later. The utility is free to registered licensees and can be
obtained by e-mailing the following to firstname.lastname@example.org.
1) Request the Unknown Builder Utility
2) Name of Instructor
3) School E-mail Address of Instructor
4) Type of License Purchased (Single, Twelve, Site)
The utility will be sent as an attachment to an e-mail message.
For more information about WinQual please contact
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This page was last updated on 1/6/00.