home
***
CD-ROM
|
disk
|
FTP
|
other
***
search
/
DP Tool Club 31
/
CDASC_31_1996_juillet_aout.iso
/
vrac
/
stoic10.zip
/
STOIC.DOC
< prev
next >
Wrap
Text File
|
1995-11-24
|
6KB
|
119 lines
Using the program Stoic
Learning about stoichiometry can be very difficult for the
introductory chemistry student. This program is designed to be
a non-threatening device which can provide the student with
practice in both balancing chemical equations and solving
stoichiometry problems. Students using the program in a
computer lab will be presented with the reactions in a different
order.
Installing stoic on you hard drive.
To install stoic on your hard drive type and enter the word
install at the dos prompt when you are in the directory where the
bondit files are contained. A directory called c:\stoic will be
created and all files will be transferred to that directory. As
an alternative use the dos copy command to copy all files to a
directory of your choice.
To show the stoic icon on Program Manager in Windows select
the program group you want to contain the icon. Select New from
the File menu of Program Manager. Program item should be chosen.
The name of the program is Stoichiometry and the command line is
c:\stoic\stoic.exe. Double click on the icon to start the
program.
Advantages of registering:
When you register (see register.doc) you will receive 13 more
reactions for the balancing portion of the lab and 14 more reactions
for the stoichiometry section. Registration costs $10 + $2 shipping
and handling. This fee entitles you to a site license for the
program and a copy of a lab which can be used with the program
will be included.
Using Stoic:
Balancing Chemical Equations:
The purpose of this portion of the program is to provide
the chemistry student with practice in balancing chemical equations.
All major type of reactions will be presented. The unregistered
version of the program will present only 2 reactions, the registered
version contains 15 different reactions to balance of all types.
To start this portion of the program select Balancing Chemical
Equations from the Stoichiometry menu or press the F2 key. An
equation will appear in the main window. To balance the equation
type the number of the coefficient (the number in front of the
formula) for each substance in the equation. To move from
substance to substance use the TAB key. Make sure the number
of atoms of each element is the same on both sides of the arrow.
When you believe you have balanced the equation correctly press
the enter key. You will be informed if you are correct or
incorrect. When all of the equations have been balanced you
will be informed.
Stoichiometry Problems:
The purpose of this portion of the program is to provide
the chemistry student with practice in solving various
stoichiometry problems. Mass-mass, mass-volume,and volume-volume
problems are included. To start this portion of the program select
Stoichiometry Problems from the Stoichiometry menu or press the F3 key.
A balanced chemical reaction will appear along with a grid below
the reaction with entries for mass, moles, and volume(if appropriate).
The goal is to fill in every space in the grid by solving for mass,
moles, or volume. The first thing that must be done is a starting
value must be place into the grid. To do so click on New Mass,
New Moles,New Volume, or Random Value. If you choose new mass,
moles, or volume a dialog box will appear asking you for the value
you want to input. Enter the value and then click on OK or press
enter. You then need to place the value on the grid by choosing
the substance you want to assign the value to. To do so click the
left mouse button on the formula of the substance in the chemical
equation. The value will appear in the appropriate place on the
grid.
The next step is to choose the starting and ending quantities
for your problem. Click the left mouse button on the starting
quantity (which is the only value present on the grid if you have
just started) and then the right mouse button on the area of the
grid you want to solve for. A series of conversion factors will
appear below the grid. Click on each conversion factor as you
would use it in the correct order to solve for the desired quantity.
If the conversion factor is correct it will appear at the bottom
of the window next to the starting quantity. If incorrect you will
be informed. When you have chosen the correct conversion factors
to solve for the desired quantity a dialog box will appear asking
you to find the answer. Using a calculator calculate the answer
to 3 significant figures and enter into the dialog box. If correct
you will be notified.
Fill in the remander of the grid by choosing quantities
present on the grid and solving for quantities not determined yet.
When the grid is completed you will be informed and a new problem
will be given. The unregistered version only has one problem whereas
the registered version has 14.
Help is available at any time during the program by choosing
Index from the Help menu. If you do not know how to use Windows
Help choose Using Help from the Help menu.
If you have any problems my E-Mail address is
ALLENT@mail.firn.edu
Timothy J. Allen
DISCLAIMER
----------
THE STOIC STIOCHIOMETRY PROGRAM IS SOLD "AS IS" AND WITHOUT
WARRANTIES AS TO PERFORMANCE OR ANY OTHER WARRANTIES WHETHER
EXPRESSED OR IMPLIED. BECAUSE OF THE VARIOUS HARDWARE AND SOFTWARE
ENVIRONMENTS INTO WHICH THIS PROGRAM MAY BE PUT, NO WARRANTY OF
FITNESS FOR A PARTICULAR PURPOSE IS OFFERED. IN NO EVENT SHALL THE
AUTHOR OF THIS SOFTWARE BE LIABLE FOR INDIRECT, SPECIAL, OR
CONSEQUENTIAL DAMAGES RESULTING FROM THE USE OF THE THIS PROGRAM.
IN NO EVENT SHALL THE AUTHORS' LIABILITY FOR ANY DAMAGES EVER
EXCEED THE PRICE PAID FOR THE LICENSE TO USE THE SOFTWARE,
REGARDLESS OF THE FORM OF CLAIM. THE PERSON USING THE SOFTWARE
BEARS ALL RISKS AS TO THE QUALITY AND PERFORMANCE OF THE SOFTWARE.
THIS AGREEMENT SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH
THE LAWS OF THE STATE OF FLORIDA.