Types of Volumetric Analysis

Question 1

Introducing a standard solution gradually from a buret into a solution of the base being analyzed or assayed until chemically equivalent amount of each have reacted as shown by some change in properties in the mixture

Answer 1

Direct titration

Question 2

Preliminary treatment or preparation of the sample before introducing the titrant in the analyte

Answer 2

Indirect Titration

Question 3

Used in those cases where a substance is to be determined

Answer 3

Indirect Titration

Question 4

Does not react directly with the standard solution or reacts with it in a non-equivalent amount

Answer 4

Indirect Titration

Question 5

Indirect Titration uses what reagent

Answer 5

Auxilliary Reagent

Question 6

Assay of Malic Acid in Cherry Juice

Answer 6

Indirect Titration

Question 7

Sample is dissolved in an accurately measured quantity of standard solution known to be in excess and titrating the ecess of the latter with another standard solution

Answer 7

Residual Titration / Back Titration

Question 8

Residual Titration is used when the endpoint of direct titration deviates from stoichiometric point for reasons:

Answer 8

Insoluble samples
Slow rate of reaction of sample with standard solution
Does not have a distinct, shard endpoint
Volatile sample

Question 9

End point detected does not correspond exatly with the stoichiometric point

Answer 9

Blank Titration

Question 10

Use of Blank Titration is due to:

Answer 10

problems with the reaction
Small amount of reagent needed to react with additional materials

Question 11

Performed to estimate or correct titration error

Answer 11

Blank Titration

Question 12

Carry the exact, same titration procedure in the absence of the analyte

Answer 12

Blank Titration