AP Chemistry
Subject:
Chemistry [1]
Tags:
chapter 1-3 [14]
Chapter1
• Precision vs accuracy
• Sig figs
• Metrics
• Classification of matter
o Pure substances
o Compounds, elements, mixtures
o Examples
o Homogeneous vs heterogeneous mixtures
o Separation of mixtures
• Dimensional analysis (show correct set-up, units, cancellations)
• History of atomic theory
o Dalton model
o JJ Thomson
o Plum pudding model
o Rutherford’s experiment and model
o Millikan’s experiment
• Atomic structure
o Atomic number
o Mass number
o Isotope designations
o Ions
• NOMENCLATURE
• Atomic mass
o Define
Calculate atomic mass, given isotope abundances
Disc why samples of elements with same mass rations as atomic mass mean equal number of atoms (Avogadro’s Hypothesis)
• Mole
o Define