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26 Cards in this Set
- Front
- Back
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acids
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begin with an H
ex: HCL, H2SO4 exception water |
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base
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bases end with OH
ex: NaOH |
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Bronsted-Lowry
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an acid is a proton (H+) donor
a base is a proton (H+) acceptor an acid base reaction is a proton (H+) transfer must have an hydrogen atom |
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conjugate base
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the product formed by loss of a proton from an acid
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conjugate acid
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the product formed by gain of a proton by a base
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How do weak acids behave diff from strong acids when they dissolve in water?
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weak acids will NOT seperate completely in cation and onion when they react in water
strong acids will seperate completely |
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What protects the stomach wall from damage due to the strong acid in the stomach?
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a thick layer of mucous covering the stomach wall protects it
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Which acid is secreted into the stomach?
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HCl
hydorcholoric acid |
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Which acid acculmulates in muscle tissue duuring streneous exercise?
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lactic acid
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pH
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below 7 is acidic
7 is neutral higher than 7 is basic |
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What is the pH of blood?
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RANGE!!
7,35-7.45 |
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What is the pH of the stomach?
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1.6-1.8
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pH gastric juice -notes
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1 to 3
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What is a buffer?
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a solution that resists a changing pH when either acid or base is added
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How can we make a buffer?
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mix a WEAK acid with its conjugate base
works by neutralizing the pH |
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3 buffers found in human body
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Blood:
carbonate buffer>>>DOMINATE phosphate buffer protein buffer |
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What can cause respratory acidosis?
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when the body fails to eliminate adequate amounts of CO2 through the lungs
pH gets lowered by increasing H30+ concentration from CO2 shifting equaliabrium to the right |
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What causes respiratory alkalosis?
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hyperventilation
lower than normal concentration of CO2 shifts equ to the left dec H30 and raising pH |
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[H+]
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[H+]= 1 x 10^ -14/ [OH-]
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K [H2O] or Kw
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K[H2O] = [H+] [OH-]
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K=
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K= [H+] [OH-]/
[H2O] |
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Kw=
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Kw= 1 x 10^ -14
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Calc keys
pH pOH |
pH= -log(H+)
pOH= -log(OH) pH+ pOH = 14 |
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How to go from pH to [H+]
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[H+] = 10^ -pH
10^x |
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example going back and forth
pH= 8.41 What is [H+]? |
10^ -8.41
=3.9 x 10^-9 |
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[H+] is 3.9 x 10^ -9
What is the pH? |
-log(3.9 x 10^ -9)
pH is 8.41 |
