Volumetric Analysis

Question 1

When is a back titration necessary?

Answer 1

When a compound is insoluble

Question 2

How to make standard solution?

Answer 2

• Weighing primary standard accurately
• Dissolving in a small volume of solvent in a beaker
• Transferring the solution and rinsings into a volumetric flask
• Make up to the mark with solvent
• Stoppering and inverting

Question 3

What must a primary standard have?

Answer 3

• Reasonably high gfm
• Be soluble
• Be stable when solid and in solution

Question 4

Example of a compound that’s not a primary standard?

Answer 4

Sodium hydroxide

Question 5

Example of a primary standard?

Answer 5

Potassium dichromate

Question 6

Complexometric reagent?

Answer 6

EDTA