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Analytical Chemistry I > Chapter 15 - Complexation and Precipitation Reactions and Titrations > Flashcards

Chapter 15 - Complexation and Precipitation Reactions and Titrations Flashcards

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1
Q

Complexation Reaction

A
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2
Q
A
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3
Q

Complex Forming Agents

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4
Q

Organic Compounds

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5
Q

Inorganic Complexing agents

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6
Q

Definition of Ligand

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7
Q

Examples of Ligand

A

Inorganic ligands: H2O, NH3, halides, Organic Ligands: EDTA

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8
Q

Coordination Number

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9
Q

Examples of Coordination Number

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10
Q

Complexometric Titration (in simple definition)

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11
Q

Chelate

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12
Q

Chelate example

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13
Q

What is Dentates?

A

Comes from Latin word “dentatus” and means having toothlike projections (donor groups).

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14
Q

What is Unidentate?

A

Single-toothed.
* Ligandthathassingledonorgroup.
* Ex.:NH3

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15
Q

What is Bidentate?

A
  • Double-toothed.
  • Ligand that has 2 donor groups.
  • Ex.Glycine.
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16
Q

Macrocycles

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17
Q

Examples of Macrocycle

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18
Q

What happens when ligand is capable of protonation?

A

If ligand is capable of protonation, control can also be accomplished by combination of complexation and pH adjustment.

19
Q

Complexometric Titrations (

A
20
Q

What are titrations with AgNO3 called?

A

Argentometric Titration

21
Q

Ions that form precipitates with solubility products greater than ____ do not yield satisfactory end points

A

10^-10 (ie. BrO3-)

22
Q

For the following ions, the indicator choosen should change colour in what pAg region to minimize titration errors?
* A)I-
* B)Cl-
* C)IO3-

A
23
Q

Volhard Method

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24
Q

Applications of Volhard Method

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25
Q

Mohr Method

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26
Q

Fajans Method

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27
Q

Why are the applications limited in Fajans method?

A

Few precipitation titrations form colloidal precipitates rapidly.

28
Q

What two requirements does an ideal indicator for an Argentometric titration have to meet?

A
29
Q

In what respect is the Fajans method superior to the Volhard method for the titration of Cl-?

A
30
Q
A

Analytical Chemistry I (3 decks)

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