helpful in learning the material. This set of programs is very attractive because it is a &-written, complete packag for an entire general chemistry course. Topic can he chosen as desired and the program can he used repeatedly without duplicatior Drill problems are well presented and ar suited for this type of instructional formal Although there are limitations as note above, students enjoy working with the dy namic.. resnonsive medium available in thi package. There are enough unique graphic and simulations to prevent students fror being bared by the drill and practice rou tines. Jerry L. Wals Uniwnity of Nom Carolina at ewnsbor Greensboro, NC 2741
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Tltrator David R. Dice, Dlgipac Computer Consul ing. 907 River Street East. Prince Alber Saskatchewan S6V.OB3, Canada Hardware: 48K Apple II, 1 disk drive Software: Appleson Components: 1 disk Level and Subject: General chemistry Cost: $23.95
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SUMMARY RATINGS Revlewer l Reviewer ll Excellent Ease of USB Average Good (as a Good Subjaa ~lrnuiatlon content exerci~e) Category
value Student reactim
Very g w d l Excellent
Revlew I "Titrator" is a concise program that alloa the user to simulate the titration of either strong or weak acid with a strong base. Th rate of addition of the hase from a huret i controlled by the use of agame paddle, whic can serve as an analog to the control of th buret stoncock. As hase is added from th huret m theacid, thecorrespondina titratio curve is plotted on the rlght-hand side of th video screen. The student is a h k t
