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13 Cards in this Set
- Front
- Back
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Water is both _____ has has ____ charges. |
polar; partial |
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Hydrophobic characteristics? Hydrophilic characteristics? |
Hydrophobic: non-polar, uncharged, lipid/fat soluble Hydrophilic: polar, charged, water soluble ex: glucose, fructose, galactose (H-bonding!) |
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Assisted solubility? |
Molecules which are more hydrophobic than hydrophilic may be transported by other means: chylomicroans: fats albumin: FA's Hemoglobin: O |
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The bigger the Keq means what? |
The bigger the Keq the further to the right the reaction will occur. |
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Strength of ionization is by the constant: Describe strong and weak electrolytes. Which way does the reaction want to go for each: MX <--> M + X |
Kd Strong electrolytes dissociate: MX -->> M + X Weak electrolytes do not dissociate as well: MX <<-- M + X |
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BL acids are defined as proton ____ BL bases are defined as ____ |
BAPD BBPA |
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Dissociation constant |
Look at SG pg 6...has [H+] in equation.
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If Ka = 2.4 and Ka = 1.89E-3 which is the stronger acid? |
Bigger the Ka, stronger the acid. |
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____ are solutions containing "acid-base" pairs that resist changes in pH. |
Buffers |
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For buffers, [H+] is proportional to ______ ratio. Equation for dissociation constant? (Ka) HA <--> H+ + A- |
[acid]/[base] Ka = [H+] [A-] / [HA] **you can solve for H |
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Equations on SG page 8 and 9. B. on page 9!! Look at it! |
page 8 and 9. |
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Buffers: Where is the least change in pH? Buffer range of a weak acid of a pKa of 4.76? |
least change in pH is where the pH is close to the value of the pKa. pH = 3.76-5.76 |
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T/F buffer capacity is directly related to buffer concentration? ex. .20M acetic acid has twice the buffer capacity of .10M acetic acid. |
True! |
