buffer Flashcards by Brina sharma | Brainscape

Q

what is the normal ph of blood

A

7.35 - 7.45

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Q

What is it called when blood falls below 7.35

A

acidotis

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Q

what is it called the PH of blood falls aboves 7.45

A

alkolosis

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Q

What is the chemical made up of the buffer blood

A

carbonic acid (h2co3) - hydrogen carbonate (salt)

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Q

equilibrium equation of carbonic acid in blood

A

H2CO3 (weak acid) = HCO3- + H+

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Q

What is a buffer solution

A

Maintain PH when small amounts of acid or alkali are added

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Q

What do acidic buffers do

A

Maintain PH below 7

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Q

what do basic buffers do

A

maintain PH above 7

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Q

How do you make an acid buffer

A

Weak acid and its conjugate base salt

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Q

How do you make a basic buffer

A

Weak base and its salt

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Q

Another way to make an acidic buffer

A

Weak acid and strong alkali (excess weak acid)

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Q

WHen is a buffer the most effective

A

(HA) from weak acid = (A-) from salt

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Q

H+ buffer solution equation

A

ka(acid/salt)

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Q

is the PH always 7 for a neutral solution

A

No

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