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9 Cards in this Set
- Front
- Back
At what pH does acidosis occur?
At what pH does alkalosis occur? |
Acidosis: pH below 7.4
Alkalosis: pH above 7.4 |
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What is the range of pH compatible with life?
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6.8-7.8
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What are some sources of H+ ions?
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Tissue metabolism (BIGGEST SOURCE)
Protein metabolism Fat metabolism Incomplete oxidation of glucose to lactic acid. |
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How is pH measured?
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It is the -log of H+ concentration.
Since it is on a logarithmic scale, a 1.0 unit change indicates a 10 fold change. |
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An ____ can donate a hydrogen ion whereas a ___ can accept a hydrogen ion.
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acid donates
base accepts. |
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Yay! Chemistry!
Cl- is a ___ base. H2CO3 is a ___ acid. HCO3- is a ___ base. |
Cl: weak base
H2CO3: weak acid HCO3-: strong base. |
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True or False:
Bases don't have to be an anion, they just have to be able to accept a proton. |
True!
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What is the Henderson-Hasselbalch equation when it relates to buffers?
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pH = pK + log [HCO3-]/[H2CO3]
HCO3- is the base and H2CO3 is the undissociated acid. |
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To be an effective buffer, what must it have?
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a pK within plus or minus 1 pH unit of the solution in which it operates.
Be present in large amounts |