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17 Cards in this Set
- Front
- Back
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Percent Mass (%) Formula
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(mass solute) * (100)
--------------------- (mass sol'n) |
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Mole Fraction (mf) (X) Formula
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moles solute
------------ moles sol'n |
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Molality (m) Formula
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moles solute
------------ kg solvent |
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Molarity (M) Formula
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moles solute
------------ L sol'n |
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Normality (N) Formula
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equivalants solute
------------------ L sol'n |
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Grams -> Moles Formula
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(x grams) * (mole)
------------------- (x atomic weight) |
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Equivalants (eq) Formula
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moles * |charge of x|
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Titration (sol'n - sol')
Formula |
N(a)V(a) = N(b)V(b)
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Titration (solid - solid)
Formula |
eq(a) = eq(b)
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Titration (sol'n - solid)
Formula |
N(a)V(a) = eq(b)
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Exothermic
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Reaction releases heat.
Is favored. |
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Endothermic
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Reaction takes in heat from surroundings. Is unfavored
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Ease of Dissolution Factors
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1) Change in energy (temp)
2) change in disorder (entropy change) |
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Heat of Solution (HoS)
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Dependent on strength of solute + solvent interaction;
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(HoS) negative value = ?
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(HoS) ? = release of heat
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(HoS) _____ values favor DISSOLUTION.
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(Hos) NEGATIVE values favor ____ .
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ENDOTHERMIC processes can be outweighed by _____.
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____ processes can be outweighed by A HIGH DEGREE OF DISORDER.
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