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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
What is the range of pH compatible with life?
6.8-7.8
What are some sources of H+ ions?
Tissue metabolism (BIGGEST SOURCE)

Protein metabolism

Fat metabolism

Incomplete oxidation of glucose to lactic acid.
How is pH measured?
It is the -log of H+ concentration.

Since it is on a logarithmic scale, a 1.0 unit change indicates a 10 fold change.
An ____ can donate a hydrogen ion whereas a ___ can accept a hydrogen ion.
acid donates

base accepts.
Yay! Chemistry!

Cl- is a ___ base.
H2CO3 is a ___ acid.
HCO3- is a ___ base.
Cl: weak base

H2CO3: weak acid

HCO3-: strong base.
True or False:

Bases don't have to be an anion, they just have to be able to accept a proton.
True!
What is the Henderson-Hasselbalch equation when it relates to buffers?
pH = pK + log [HCO3-]/[H2CO3]


HCO3- is the base and H2CO3 is the undissociated acid.
To be an effective buffer, what must it have?
a pK within plus or minus 1 pH unit of the solution in which it operates.

Be present in large amounts