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13 terms

Intro Solution Chemistry (APAC)

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Solution
a homogeneous mixture of two or more substances
Solvent
a liquid substance capable of dissolving other substances (majority of the solution)
Solute
the dissolved substance in a solution
Density of Water
1.0g/mL (unless stated otherwise)
Molarity (M)
Moles of solute/L of solution, unit: mol/L
Mole Fraction (X)
Moles of component/∑ moles, unitless
Dilution
weakening (reducing the concentration) by the addition of water or a thinner
Saturated
No more solute will dissolve
Unsaturated
More solute will dissolve
Supersaturated
More solute is dissolved than should be possible under normal conditions
How does something become supersaturated?
1. Temp - Heat: particles move faster, more solubility
Cool: solute won't necessarily precipitate
2. Evaporation - Saturated soln evaporates; V down, C up
Dilution Formula
M(i)V(i) = M(f)V(f)
Concentration
the strength of a solution