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27 Cards in this Set
- Front
- Back
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Avogadro's Number |
6.022 X 10^23 |
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Empirical Formula |
Lowest whole number ratio of constituent elements in compound |
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Molarity (M) |
mol solute/volume of solution (L) |
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Gas Constants |
1.) 0.0821 L ATM/ Mol K 2.) 8.314 J/Mol K |
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1.0 L = |
1 dm^3 |
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Torr = ATM = Pa |
760 Torr = 1 ATM = 1.01325 Pa |
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T(K)= T(C) |
T(C) +273 |
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pH= log |
pH= -log[H3O^1+] |
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Kw= |
at (25C)=1.0E^-14 |
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pOH=log |
pOH= -log[OH1-] |
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Three Classes of Solutions |
Strong Electrolytes, Weak Electrolytes, Non-Electrolytes |
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Strong Electrolytes |
Solute fully dissolves into ions Ionic bonds (NaCl) Strong acids or bases |
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Weak Electrolytes |
fraction of solute dissolves into ions weak acids/bases |
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Non-Electrolytes |
solute dissolves as neutral species Alcohol, Ethylene glycol, sugar, many polymers |
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Vol Fraction of A (V/V) |
Vol A/ total volume Convenient for liquid mixtures |
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Mass Fraction of A (m/m or w/w) Mass Fraction of A |
Mass A/ Total Mass Convenient for solid mixtures |
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Mass %= PPM= PPB= |
MF * 100 MF * 10^6 MF * 10^9 |
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I |
"Van't Hoff Factor" # mols Ions/ mol parent formula units |
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Non-Electrolytes Van't Hoff Factor |
1 |
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V |
Specific Frequency |
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Upsidedown Y |
Wavelength |
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Epsolon Wavelength |
measure of extent which a given compound absorbs a given color (wavelength) "Natural inclination to absorb" |
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Four types of work |
Mechanical, chemical, magnetic, and electrical |
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w=0 |
ischoric |
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+w |
E flow into a sytstem |
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-w |
E flow out of a system |
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heat equation |
C*Delta T (one phase present) m*s*delta T (one phase present) n*molar heat capacity* Delta T Delta H |
