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Oxford
University Press: New York, 1997. 176 pp. Figs. ISBN: 01
9855 9658. $24.95.
Johnson and Scott's book is part of a chemistry
workbook series. It provides a set of exercises designed to help students
in the early stages of physical chemistry apprenticeship to learn
or review basic concepts necessary for a physical chemistry
course. For this book we have the comments of two reviewers,
which complement and augment each other.
EJW
This workbook is designed to complement rather
than supplement existing textbooks. Its format is one of
examples followed by closely coordinated exercises that can be
worked directly on the pages of the text itself. The first six
chapters present material at a level typically covered in (or before)
the first year general chemistry course and the final two
chapters move into more sophisticated areas at the level considered
in upper-level physical chemistry courses.
Johnson and Scott do accomplish their goals by
providing a series of exercises of increasing difficulty. The level
of the exercises is quite basic and often involves merely
inserting numbers into the appropriate formula. Little
additional insight is offered through either direct commentary or
suggestions for further consideration by the student. Many
students could benefit from at least some of the programmed
exercises found in this book. However, the elementary nature
of the first few chapters may discourage them from
continuing on to the more sophisticated material.
The scope of the material is evidence of the authors'
extensive teaching experience. The section on powers of
ten includes material describing how to use the exponents to
allow multiplication or division without the use of a calculator.
Although calculators are certainly ubiquitous, mastery of
this particular skill allows students to estimate their result
and confirm that their calculated result is at least of the
appropriate order of magnitude. The discussion of the
difference between a liter and a cubic meter is another example of
the authors' understanding of common student pitfalls.
The presentation order is puzzling at times. For
example, relative velocity and natural oscillator frequency are
introduced in Chapter 2, Calculating Masses of Atoms and
Molecules. Both of these topics would be more appropriate
later in the text. Conversion factors are occasionally used
in problems before the introduction of dimensional analysis
in Chapter 3. The answers to each exercise are provided
immediately after the exercise, which may tempt students to
skip actually writing out the solution to each exercise. Providing
the answers at the end of the text, while less convenient,
might prevent this potential problem.
Certain students would benefit from this text, but
requiring its purchase would be an additional financial
burden - especially considering that students would still need to
buy the textbook along with any appropriate ancillary
materials (i.e., solutions manual). I would recommend this text to
students on an individual basis.
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