Biochem Final - pH and Buffer can

acidic

hydrogen is

Power of hydrogen

pH means

hydrogen ions

pH checks how acidic is the reaction through the number of ____ it contains

Negative logarithm of the hydrogen ion concentration

Ph is the logarithm

basic

when ph increase, it is

acidic

when ph decreases

basic

ph increase, hydroxyl ions increase, hydrogen ions decrease

acidic

pH decrease, hydroxyl decrease, hydrogen increase

pH meter

it measures the exact measurement of a solution, most accurate, and contains bulb

resist pH changes

buffer’s main role is to

to know if the buffer is neutral

why we measure the pH?

1:1

the buffer contains this ratio of acid and base

pH=pKa

buffer capacity is derived as:

acidic buffer

weak acid + conjugated base

basic buffer

weak base + conjugated acid

contains weak acid or base and its salt

nature of buffer solution

pKa= -logKa

A buffer is best used close to its

true

buffer resist pH changes by absorbing the H+ ions or OH- ions added to the system, true or false

HA ←→ H+ + A-

buffer system equation

Buffer of carbonic acid, bicarbonate anion

Human blood contains what buffers?

7.35 - 7.45

blood has a ph of

Hydronium and Bicarbonate anion

this two are equilibrium with carbonic acid in the human blood buffer

respiratory acidosis, respiratory alkalosis, metabolic acidosis, metabolic aklalosis

Blood abnormalities of Acid based balance

Respiratory acidosis

This is due to the excessive carbon dioxide accumulation, low ph

Respiratory Aklalosis

Due to excessive carbon dioxide loss

Metabolic acidosis

This is due to bicarbonate deficiency(hyperventilation)

Metabolic alkanosis

Cause by bicarbonate excess(hypoventilation)

pH meter and ph strips

Two types oF pH test