3e)- Volumetric Analysis

Question 1

What is a standard solution

Answer 1

Solution of accurately known concentration are known as standard solutions

Question 2

How to indicate end point

Answer 2

An indicator is normally used to show when the end point is reached

Question 3

What is titration used to determine

Answer 3

Titration is used to determine, accurately, the volumes of solution required to reach the end point of a chemical reaction.

Question 4

What are concordant values

Answer 4

Titre volumes within 0.2cm3 are considered concordant

Question 5

What are redox titrations based on

Answer 5

Redox titrations are based on redox reactions

Question 6

Which chemical is not required in titrations and why

Answer 6

In titrations using acidified permanganate, an indicator is not required as purple permanganate solution turns colourless when reduced

Question 7

What is chromatography

Answer 7

Chromatography is a technique used to separate the components present within a mixture.

Question 8

How does chromatography separate substances

Answer 8

Chromatography separates substances by making use of differences in their polarity or molecular size

Question 9

Why is it not necessary to add a indicator to some titrations

Answer 9

Self indicating