• 1.2: Measurement and Notation

    We need to perform measurements when we observe properties of matter. We express these measurements in standard notations so we can communicate them consistently and easily to others. In this section, we explore how to express measurements in chemistry.

    We use a standard set of units, based on the metric system, to perform scientific measurements. Most standard units are their base units (meter) for their property. Note that the base unit for mass (kg) is the only "base" unit with a prefix.