PRELIM 02 - pH Measurement and Buffer Preparation

Question 1

The negative logarithm of the hydrogen ion concentration

Answer 1

pH

Question 2

The negative logarithm of the hydroxide ion concentration

Answer 2

pOH

Question 3

Stands for the acid-dissociation constant

Answer 3

Ka

Question 4

Stands for the base-dissociation constant

Answer 4

Kb

Question 5

Is the negative logarithm of Ka; it is the quantitative measure of the strength of an acid

Answer 5

pKa

Question 6

Is the negative logarithm of Kb; it is the quantitative measure of the strength of a base

Answer 6

pKb

Question 7

Involves the use of a pH meter; it measures the voltage between two electrodes and displays the results converted into corresponding pH

Answer 7

Potentiometric pH determination

Question 8

Is based on the use of indicator dyes which produce color depending on the sample

Answer 8

Colorimetric pH determination

Question 9

Solution that contains either a weak acid or a weak base and its salt

Answer 9

Buffer solution

Question 10

The human body makes use of the __________

Answer 10

Carbonic acid bicarbonate system

Question 11

An equation used to estimate the pH of a solution

Answer 11

Henderson-Hasselbalch equation

Question 12

This system is the only one that is coupled with the respiratory system

Answer 12

Carbonic acid bicarbonate system

Question 13

The number of moles of an acid or base necessary to change the pH of a buffer by 1

Answer 13

Buffer capacity