CHEM 111 Study Guide - Midterm Guide: Uncertainty Principle, Oxidizing Agent, Trailing Zero
Document Summary
Lab 1 - reactions of reagents with ordinary materials. Acids are typically used as solutions in water and concentration is described using molarity (m). Molarity - number of moles of a substance per liter of solution. Strong acids and strong bases are corrosive, destructive and reactive chemicals. Strong oxidizing agents and strong reducing agents have distinct chemical properties. Oxidizing agent - oxidizes something else and get reduced (lose e-) Reducing agent - reduces something else and get oxidized (gain e-) Oil rig - oxidize is lost and reduce is gain. Significant figure - one that has been measured with certainty or has been properly estimated. Exact numbers are assumed to have infinite significant figures. Captive zeros are significant (sandwich rule :d) Trailing zeros are significant only if they follow a significant digit and there is a decimal (0. 0011 sf) (10014 sf) (1213 sf) point in the value. (right/right rule) (10001 sf) & (1. 0004 sf)
