ALKALIMETRY

Question 1

The strength of an acid
solution is determined by
titrating it against a standard
base solution or determining the
strength of an alkali solution by
titration with a standard acid
solution.

Answer 1

Principle of Acid – Base
Titration

Question 2

is used to monitor
the reaction

Answer 2

pH indicator

Question 3

reaction
usually occurs between acid and
base, hydroxide ions and hydrogen
protons, resulting in the formation
of water

Answer 3

neutralization

Question 4

re chemical processes
whereby an amount of an acid has reacted with
an equivalent amount of a base with the
production of salt and water.

Answer 4

Neutralization reactions

Question 5

is the measurement of basic
substances by titration with
a standard acid

Answer 5

ACIDIMETRY

Question 6

involves the determination
of acidic substances by
titration with a standard
base solution.

Answer 6

ALKALIMETRY

Question 7

any substance which releases H ions in water solution

Answer 7

ARRHENIUS ACID

Question 8

any substance which releases OH ions in water solution

Answer 8

ARRHENIUS BASE

Question 9

any substance which donates a proton

Answer 9

BRONSTED LOWRY ACID

Question 10

any substance which accepts a proton

Answer 10

BRONSTED LOWRY BASE

Question 11

any substance which can accept an electron pair

Answer 11

LEWIS ACID

Question 12

any substance which can donate an electron pair

Answer 12

LEWIS BASE

Question 13

is any substance which in water ionizes to give hydrogen ions
(hydronium ions*)

Answer 13

ACID

Question 14

is any substance which in water ionizes to give hydroxyl ions

Answer 14

BASE

Question 15

is the combination of the proton and hydroxyl ion to
form the water molecule.

Answer 15

NEUTRALIZATION

Question 16

by-product of neutralization

Answer 16

SALT

Question 17

NEUTRALIZATION
Based on Media (Solvent) Used

Answer 17

Aqueous titrimetry
Non-aqueous titrimetry

Question 18

use water as the solvent for
dissolving the analyte samples for the
titration.

Answer 18

Aqueous titrimetry

Question 19

the concept of acids and bases has been
extended to include solvents other than
water, acids other than proton donors, and
bases other than hydroxyl ions donors.
These are considered, on nonaqueous
titrimetry

Answer 19

Non-aqueous titrimetry

Question 20

Non-aqueous titrimetry use ______ for dissolving the
sample.

Answer 20

organic solvents

Question 21

Strong Acid + Strong Base

Answer 21

Phenolphthalein, methyl red, methyl orange

Question 22

Weak Acid + Strong Base

Answer 22

Phenolphthalein

Question 23

Weak Acid + Weak Base

Answer 23

No indicator

Question 24

Strong Acid + Weak Base

Answer 24

Methyl red

Question 25

Weak Base + Salt

Answer 25

Crystal violet, Quinaldine red, malachite green

Question 26

Relatively Strong Base

Answer 26

Methyl red, methyl orange

Question 27

Weak acid

Answer 27

Azo-violet, o-nitro-aniline (very WA)

Question 28

Strong Acid

Answer 28

Thymol blue

Question 29

BASES' BURETTE

Answer 29

MOHR'S BURETTE

Question 30

ACIDS BURETTE

Answer 30

GEISSLER'S BURETTE

Question 31

The most common application of acid-base titrations is

Answer 31

determining an unknown analyte's acid or base concentration

Question 32

_______ is carried out with ACID-BASE TITRIMETRY

Answer 32

Quantitative chemical analysis

Question 33

Pharmaceutical applications of Acid-Base Titrimetry

Answer 33

A barbiturate, aspirin, and amino acid

Question 34

An environmental analysis can be conducted with it.

Answer 34

Application of Acid-Base Titrimetry

Question 35

percentage potency, strength or percentage purity of a drug or preparation. - amount per 100

Answer 35

% assay

Question 36

Types of Titration Based On The Number of Volumetric Solution

Answer 36

DIRECT AND RESIDUAL/BACK TITRATION

Question 37

Titrant is added into the analyte until chemical equivalent amounts of them reacts together

Answer 37

DIRECT

Question 38

Described as the amount of volumetric solution in excess. The excess is back titrated with another volumetric solution

Answer 38

RESIDUAL OR BACK TITRATION

Question 39

ONLY 1 VOLUMETRIC SOLN/STD. SOLUTION

Answer 39

DIRECT

Question 40

USES 2 VOLUMETRIC SOLN. (VISS) 1 or more std. sol’n., involve addition of excess std. sol’n. & the excess is back titrated w/ another std. sol’n

Answer 40

RESIDUAL

Question 41

WHY Residual Titration?

Answer 41

❖ Volatile ❖ Sample is insoluble in water ❖ Reaction with standard solution is slow ❖ Sample does not give a distinct endpoint with an indicator by direct titration (No sharp endpoint)

Question 42

can be calculated by dividing the mass of the pure chemical by the total mass of the sample, and then multiplying this number by 100.

Answer 42

Percentage Purity

Question 43

s carried in the same manner as the actual test BUT without the sample

Answer 43

Blank test

Question 44

Blank test are Performed to correct errors due to

Answer 44

* the presence of impurities in the reagents * changes in volume at different temperature * absorption of carbon dioxide by the alkali * by the alkalinity imparted by the glass

Question 45

ml in the blank titration is ml of acid =

Answer 45

total base

Question 46

ml in actual is ml of acid =

Answer 46

base found in excess

Question 47

l of acid that reacted with sample =

Answer 47

ml of the base that reacted with the sample

Question 48

is the analysis of an acid , acid salt or other acidic substance

Answer 48

Alkalimetry

Question 49

f using an accurately measured volume of a standard alkali solutions

Answer 49

DIRECT

Question 50

if the process requires adding an excess of the standard alkali solution and determining the amount in excess by residual titration with standard acid solution

Answer 50

RESIDUAL