Stoichiometry And Quantative Reaction

Question 0

What does volumetric analysis involve

Answer 0

Using an accurately known concentration in a quantative reaction to determine the concentration of the other reactant

Question 1

What is a quantative reaction

Answer 1

The substances completely react according to the molar ratios given by the balanced equation

Question 2

What is the procedure for a volumetric analysis called

Answer 2

A titration

Question 3

Normally a rough titration is taken first followed by

Answer 3

More accurate titrations

Until concordat results achieved (0.1/0.2cm^3)

Question 4

From what is a standard solution made up from

Answer 4

Prepared by directly from a primary solution

Question 5

What are the characteristic for a primary solution

Answer 5

Available in high state of purity
Stable when solid or in sol
Soluble in water
High formula mass

Question 6

What is a acid-base titration

Answer 6

Look for a permanent colour change due to the presence of an indicator
This is the end point or the equivalence point
Ideal is when these are the same thing

Question 7

During a redo what reacts with what

Answer 7

Oxi agent reacts with a red agent

Question 8

The reducing agent is a..

Answer 8

Electron donor and itself is oxidised

Question 9

The oxidising agent acts as a

Answer 9

Electron acceptor and is reduced

Question 10

What is a successful reagent in redox reactions

Answer 10

Acidified permanganate

Question 11

What is a complexometric titration

Answer 11

Based on the formation of complexes

Example is EDTA used to determine the concentration of metal ions in solution

Question 12

What is found in gravimetric analysis

Answer 12

Mass of an element or compound present in a sub is determined by changing that substance into another substance of known chemical composition and formula that is easily isolated purified and weighed

Question 13

The product usually has to be

Answer 13

Dried process of heating to constant mass

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