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It is always reassuring to be asked to review a book
that one has already adopted. We have been using this
manual for our General Chemistry laboratories for several years,
and as the title suggests it is a laboratory manual designed
for beginning general chemistry students. Using very few pages,
it leaves little to student imaginations about laboratory
equipment and operations and provides straightforward descriptions of
the basics that beginning students need to start laboratory work.
The manual appropriately starts with a discussion
of laboratory safety, which, while thorough enough to be
free-standing, could be modified to fit particular needs of a
course. It emphasizes the most important aspects of safety. Along
with safety, MSDSs are explained, as is the importance of
proper disposal of chemicals.
The next section shows a picture of each common piece
of equipment with its name and a two- or three-word
description of its function. I often see students using this section to
identify "foreign" objects that they find in their drawers. In the
next six sections clear and concise descriptions of elementary
techniques using the basic equipment are given. These
sections are on heating, small-scale operations, transferring
materials, separations, weighing, and measuring liquid volumes. In
the section on transferring materials there is an emphasis on
not contaminating stock reagents, which should endear the book
to instructors. Students should be able to perform each
technique from the description but would, of course, benefit from
a demonstration with actual laboratory equipment.
However, a distracted laboratory instructor can be confident that
any important point that he or she might forget to mention
has been covered in the manual.
My only criticism of the manual comes in the
Data Representation and Recording section. In the discussion
of representing data using graphs and figures, there is a
good description of how to make a graph. The omission is the
equation for a straight line, and how to determine this
equation if the drawn line is linear. Furthermore, there is no
mention of linear regression calculations on calculators or
computers in this section. For completeness, I would also include
the equation for calculating the average of a data set before
describing the calculation for the standard deviation.
However, these omissions are easily supplemented.
Finally, the manual has several appendices, which
include a description of glass working, Spectronic
20 operation, useful data tables, and references to more
extensive laboratory manuals. This book is 30 pages of
valuable information for any beginning chemistry student, and I
am confident that students armed with the knowledge of
the material in the book will have a safe and productive
laboratory experience.
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