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21 Cards in this Set
- Front
- Back
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M stands for
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molarity
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molarity =
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(# moles solute) / (L solution)
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m stands for
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molality
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molality =
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(# moles solute) / (kg solvent)
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χ stands for:
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mole fraction
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mole fraction =
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χ = (# moles solute) / (total moles) , (# moles solvent)/(total moles)
Where, total moles = [# moles solute + # moles solvent] |
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solution =
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solvent + solute
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ΔG =
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ΔH - TΔS
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Δsolution =
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ΔHa + ΔHb + ΔHc
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What is the "golden rule" of solubility?
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"like dissolves like"
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Henry's law is used for:
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The solubility of a gs in a liquid solvent
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The amount of a gas dissolved is proportional to its:
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Pgas
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solubility, Sgas =
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kH Pgas
Where kH = Henry's constant for gas Pgas = partial P of gas |
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Pgas =
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kH χ gas
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Sgas = kH Pgas is equivalent to:
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Sgas = kH Pgas is equivalent to:
mol/L = (mol / Latm)(atm) |
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With gases, solubility generally _______ as temperature _________
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With gases, solubility generally decreases as temperature increases
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vapor pressure reduction:
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Pvap(solvent above solution) = Xsolvent Pvap(pure solvent)
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Boiling point elevation
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ΔTb = Kbm > 0
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freezing point reduction
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ΔTf = Kfm < 0
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osmotic pressure
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Π = MRT = n/v RT
Π = osmotic pressure T = temp in kelvin M = mol/L |
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Raoult's Law:
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Pvap, solution = χsolvent Pvap(pure solvent)
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