First PP

Molarity
moles/liter “M”
uses brackets: [x]=x moles/liter=x M
Molality
moles/kg
mass
g/L, mg/L
mole fraction
moles of “x”/total moles of system
acid/base reactions
counts protons, H+
oxidation/reduction
counts electrons, e-
ionic charge
counts “charge”, either positive or negative
activity
an idealize concentration used in thermodynamic calculations. accounts for effects of T, P, and the presence of other chemical species on the behavior of dissolved chemicals
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