**Using A Spreadsheet To Solve Gas Law Problems**

Branch, Arthur Tilden H.S.

268-2302

**Objectives:**
To teach students in the Chemistry classes to use a computer
spreadsheet; to teach the students how to utilize a spreadsheet to
solve problems using the gas laws and the formulas corresponding.
**Apparatus:**
Using the IBM PC computers and the Express Calc program each student
will load the spreadsheet with the given information for each problem.
Students will then compute the unknown volume, temp (K) or pressure
according to the existing conditions.
**Strategy:**
With a 30 min. review session of the gas law concepts, formulas, and
problem solving techniques, students will complete a worksheet. Upon
completion of this worksheet students will type in the given
information on the computer spreadsheet in the appropriate places.
Utilizing the column and formula duplication functions (replicate),
student will discover a means of computing many similar calculations
in a matter of seconds.
**Observations**
Most students were very enthusiastic about using the computer in the
first place. Students were able to pick right up from the review
session and convert the gas law formulas to computer spreadsheet
formulas. Most if not all students continued to work with little
assistance for twenty to thirty minutes past the end of the scheduled
class time. Everyone learned to use the spreadsheet effectively and
most gathered a better understanding of the gas laws and their
formulas.

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