Bench Primer

Primers

All nine, by topic

Each primer stands alone, but the numbers follow the reading order on the front page: the earlier ones define what the later ones use.

Quantities & units

Moles, concentrations, prefixes and the digits an instrument can honestly give you.

Mass & formula

Why a molecule has two masses, and how a chain adds up.

Structure

Reading a drawing, and what a drawing cannot tell you.

Data sheets

Which numbers on a record were computed and which were measured.