Aha! Chemistry with Prof Bob
  • HOME
  • NAVIGATION
    • Table of contents
    • Index
    • TALK WITH PROF BOB?
  • LEARNING MODULES
    • Chapter 02 Stuff, matter: What is it? >
      • 0200 Stuff, matter: A theory of atoms
      • 0201 Atoms: The building blocks of all stuff
      • 0202 People classifying stuffs. Why?
    • Chapter 05 Chemical reactions and chemical equations >
      • 0500 Chemical reactions and chemical equations. Overview
      • 0501 Chemical amount and its unit of measurement, mole
      • 0502 The Avogadro constant: How many is that?
      • 0503 The Avogadro constant: Why is it that number?
      • 0504 Chemical formulas: What can they tell us??
      • 0505 Chemical equations: What can they tell us?
      • 0506 Limiting reactants: How much reaction can happen?
      • 0507 Balanced chemical equations: What are they?
      • 0508 Chemical reactions as competitions
    • Chapter 09 Aqueous solutions >
      • 0901 What is a solution? And what is not?
      • 0902 Miscibility of liquids in each other
      • 0903 Like dissolves like? Shades of grey
      • 0905 Dissolution of ionic salts in water: A competition
      • 0906 Can we predict solubilities of salts?
      • 0907 Solution concentration
      • 0908 Chemical species, speciation in aqueous solution
      • 0909 Solutes: Electrolytes or non-electrolytes?
      • 0910 Electrolytes - strong or weak?
      • 0911 Concentrated, dilute, strong, weak
      • 0912 Species concentration vs. solution concentration
      • 0913 Weak electrolytes: Getting quantitative
    • Chapter 11: Dynamic chemical equilibrium >
      • 1100 Dynamic chemical equilibrium: Overview
      • 1101 Visualising dynamic chemical equilibrium
      • 1102 The jargon of chemical equilibrium
      • 1103 Equilibrium constants: The law of equilibrium
      • 1104 The law of equilibrium: an analogy
    • Chapter 22 Evidence from spectroscopy >
      • 2200 Spectroscopy: Overview and preview
      • 2201 Quantisation of forms of energy
      • 2202 Light: Wave-particle "duality"
      • 2203 Ultraviolet-visible spectroscopy
      • 2204 Beer’s law: How much light is transmitted?
    • Chapter 27 The greenhouse effect, climate change >
      • 2700 The greenhouse effect: overview
      • 2701 Is Earth in energy balance?
      • 2702 CO2 in the atmosphere before 1800
      • 2703 So little CO2! Pffft?
      • 2704 Does CO2 affect Earth's energy balance?
      • 2705 The "greenhouse effect"
      • 2706 Why does CO2 absorb radiation from Earth?
      • 2707 The "enhanced greenhouse effect"
      • 2708 Why doesn't CO2 absorb the radiation from the sun?
      • 2709 Why are N2 and O2 not greenhouse gases?
      • 2710 Doesn't water vapour absorb all the IR?
      • 2711 Carbon dioxide from our cars
      • 2712 The source of energy from combustion
      • 2713 Comparing fuels as energy sources
      • 2714 Methane: How does it compare as a GHG?
      • 2715 Different sorts of pollution of the atmosphere
      • 2716 "Acidification" of seawater
    • Chapter 27 Communicating chemistry >
      • 2700 Overview, preview
      • 2703 The jargon we use
  • TEACHERS' CORNER
    • T01 Communicating chemistry
    • T02 Beer's law
    • T03 Professional amnesia of the chemistry teaching professio
    • T04 Law of equilibrium
    • T05 Visusalizing dynamic chemical equilibrium
    • Information vs. knowledge
  • PERSONAL GALLERY
    • Family
    • Travel
    • Playful dolphins
    • The University of Western Australia
    • Kings Park
    • Perth
    • At work
    • 999 Thermodynamics




​Index

​Search for concepts alphabetically



​​Click on the entry to go directly to the appropriate module
Picture

Alpabetical list of Chemistry concepts



​The concepts that Prof Bob has talked about so far​


​Click on the module number to go directly to the module. Bold numbers refer to the main sites of discussion of concepts.
​

     
Absorbance of coloured solutions     2204​, 2201
​Absorption spectrum,
          infrared   2706   
          visible
   2201, 2203
Acetic acid
          speciation in aqueous solution as pH is changed     0908
Acid-base reactions
          as competition process   
0508
          language issues    0508
"Allowed" energy levels​     2201, 2203
Amount of substance    0501, 0502
Anthropomorphism, as an explanatory device    
0508
Antisymmetric stretching, vibrational modes of molecules  2709   
Aquated ions     0905, 0908   
Aqueous solutions     Chapter 09     and see Solutions​
Aquation of ions     0905, 0906
Atmosphere of Earth
          greenhouse effect, climate change    Chapter 27
Atomic number, Z     0201
Atomic theory of matter     0200, 0201
Atoms
          building blocks of molecules     0200, 0201
          composition of     0201
Avogadro constant
     0501, 0502, 0503

Avogadro number   0501
​Balanced chemical equations     
0505
          and see Chemical equations
​​Beer's law   
 2204, T02
Bending vibrational modes of molecules  2709   
Black-body radiation   2708    
Bohr, Niels  ​  
2201
Carbon dioxide
          in Earth's atmosphere     Chapter 27
               from cars  2711   
               concentrations before the Industrial Revolution    2702
               effect on Earth's energy balance    2704, 2705   
               good or bad?   2704
               greenhouse effect   2705,   2706         
               concentration and temperature, enhanced greenhouse effect   2707   
               Why doesn't it absorb radiation coming from the sun?   2708   
               Infrared-active molecules   2709    
         IR spectrum   
 2201, 2706, 2709    
Carbonic acid
          speciation in aqueous solution as pH is changed     0908
Chemical amount   
 0501, 0502,  0503
Chemical equations     Chapter 05
          As distinct from chemical reactions     0500
          balanced     
0505
          What can they tell us, and what can they not tell us?     0505
          For reactions of ions in solutions of ionic salts     0908
          To deduce limiting reactants     0506

Chemical equilibrium (and see Equilibrium and Dynamic chemical equilibrium)     Chapter 11
          dynamic, visualizing     1101
          ionisation of weak electrolytes in solution     0909, 0910
          jargon    1102
          "position", shift of     1102
Chemical formulas, interpretation of    
 0504
Chemical reactions     Chapter 05
          as distinct from chemical equations     0500
          limiting reactants in     0505
​Chemical species     See Species, chemical
Classification of matter     0202
Climate change     Chapter 27
Coloured solutions, absorbance   
2203, 2204
Colloidal dispersions     0901
Combustion, carbon dioxide from  2711   
Communication in chemistry  (see language)    1102, 2700, 2703

Competition, in chemical processes   0508, 1101
          dissolving ionic salts   0508,  0905, 0906
          acid-base reactions    0508
          oxidation-reduction reactions    0508
          complexation reactions    0508​
          miscibility of molecular liquids     0902, 0903
          reactions as competition    0508, 
1101
Complexation reactions
          as competitive processes    0508
Compton, Arthur   
2202
Concentrated (Meanings of concentrated, dilute, strong, weak)     0911
Concentration of solutions     0907
          vs. concentraton of species in solution     0912
Concentration of species vs. concentration of solution     0912
Concepts, interdependence of     0201
Conservation of matter/atoms/mass, law of     
0505
Covalent molecular compounds
          Interpreting chemical formulas of     
0504
          Electrolytes or non-electrolytes?     0909
Dalton, John    0200
Dilute (Meanings of concentrated, dilute, strong, weak)     0911
Dipole moment
          change during molecular vibrations   2709     
Dispersion forces between molecules     0902
​Dissolving ionic salts in water
          as a competitive process    0508,   0905, 0906
          Prediction of solubilities    0909
          Chemical species in    0908
"Driving forces"
         and miscibility of liquids    0902
"Dual nature" of light     
2202
Dynamic chemical equilibrium     See chemical equilibrium
Earth
          energy balance     2701
          temperature, average, at surface     2701
Electrolytes
​          or non-electrolytes?     0909
          strong or weak?     0909, 0910
          quantitative treatment of weak electrolytes    0913​
Electromagnetic spectrum     2201, 2706    
Electrons
          quantised energy levels   
2201
​          in atoms     0201
          competition for, in oxidation-reduction reactions   0508
Elements     0201
Emission spectra of atomic substances   
 2201
Entropy     0902, 0906
Energy
          associated with forces of attraction between molecules     0902​
Energy balance, at surface of Earth    2701
          effect of carbon dioxide on    2704, 2705
Enhanced greenhouse effect   2707   
Environmental chemistry
          atmosphere (greenhouse gases, climate change     Chapter 27
Equations    See Chemical equations

Equilibrium     Chapter 11
          dynamic chemical equilibrium, visualizing     1101
          jargon related to     1102          
          law of     0913, 1103, T04
          "position", shift of     1102
Equilibrium constant, K     0913, 
1103, 0505
Ethanoic acid     See acetic acid
'Excitation' of energy   
 2203
'Excited' hydrogen atoms, line emission spectrum    2201   
Formulas      See chemical formulas

Global warming     Chapter 27
Greenhouse effect     Chapter 27
          capture and emission of photons by CO2   2705
          enhanced greenhouse effect   2707   
Greenhouse gases in the atmosphere     
Chapter 27
          most important   2705
Homogeneous mixtures     
0901
Heterogeneous mixtures     0901​
Huygens, Christiaan   2202
Hydration, hydrated ions     See aquation, aquated ions
Hydration enthalpy (energy)     0906
Hydrogen
          atoms, line emission spectrum from    
2201
Industrial Revolution    carbon dioxide concentrations   2702, 2707   
Infrared active molecules   2709    
Infrared spectroscopy   
2201
Infrared spectrum
          carbon dioxide  2709, 2710   

          water  2710   
Intensive properties     0907
International Union of Pure and Applied Chemistry (IUPAC)     0501,  0503​
          Compendium of Chemical Terminology (IUPAC Green Book)    0501,  0503
Ionic compounds/salts
          Interpreting chemical formulas of    
0504
          Structure of    0905
          Solutions in water
                   The dissolution process​     0905, 0906
                   Solubilities, prediction of     0906
                   Electrolytes or non-electrolytes?     0909
                   Chemical species from     0908
Ionisation of solutes in solution     0909, 0910, 0913​
Isomers     0201

Isotopes     0201
IUPAC  (
International Union of Pure and Applied Chemistry)     0501, 0503​
          Compendium of Chemical Terminology (IUPAC Green Book)    0501,  0503,  
0908
Language of chemistry, communication issues in chemistry
          Jargon in chemistry     
2703
          Chemical equations vs. chemical reactions     0500
​          Names, symbols labels: various meanings of the term "oxygen"      0201
          Chemical species, analogy     0908
          Acid-bases reactions    0508
         Oxidation-reduction reactions    0508
          Weak electrolytes: stronger and weaker   
0910
          Weak electrolyte definition    0910
          Concentrated, dilute, weak, strong     0911
          Concentration: Species concentration vs. solution concentration     0912
          Dynamic chemical equilibrium    1102
          Equilibrium constant  
1103
Lattice enthalpy (lattice energy)     0906
Law of conservation of atoms/matter/mass     0505
Law of equilibrium     0913, 1103, T04
Law of mass action     See: law of equilibrium
Law of miscibility of molecular liquids (Prof Bob's)     0902, 0903
Ligands
          competition for, in complexation reactions    0508
Light: Wave-particle "duality"     
2202
Like dissolves like (miscibility of liquids)     0902, 0903
Limiting reactants     
0506
Line emission spectra from 'excited' atoms     2201    
Liquids

          miscibility of liquids in each other    0902, 0903
Matter     Chapter 02
          What is it?    0201, 0200
          Classification of    0202
Microwave spectra   
2201
​Miscibility of liquids     0902, 0903

          partial miscibility     0903
Mixtures
          Solutions or not?     0901
          Homogenous and heterogeneous     0901
Modelling
          of dynamic chemical equilibrium   1101
          light as waves or particles   2202 
Molar concentration     (see Molarity)
​Molar mass     0501
Molarity     0907
Mole: unit of measurement of chemical amount
    0501, 0502, 0503
Molecules
          composition of     0201
​Net rate of reaction     
1102
Net reaction     1102
Neutrons     0201
Newton, Isaac   
2202
Nitrogen, not a greenhouse gas   2709   
Non-polar liquids
          miscibility in other liquids     
0902, 0903
Oxidation-reduction reactions
          as competition process    
0508
          language issues    0508
Oxygen, not a greenhouse gas   2709   
Partial miscibility of liquids     0903
Photons     
2202
Photoelectric effect     2202
​Planck constant (h)     2202
Polar liquids
          miscibility in other liquids     
0902, 0903
"Position" of equilibrium     1102
Prof Bob's law of miscibility of molecular liquids     0902, 0903
Protons     0201
          competition for, in acid-base reactions    
0508
Q, reaction quotient     0913, 1100, 1103
Quantization of energy    2200, 
2201, 2203
         
electron energy     2201, 2203
         
rotational energy     2201
          vibrational energy     2201,  2706 
Radiation
            black-body radiation  2708  
            from Sun to Earth, and from earth to space    2701, 2708  
Rate of reaction     
1102
​Reaction     See chemical reaction
Reaction quotient, Q     0505,  
0913, 1103
Reversible reaction     1102
Rotational energy of molecules
          quantisation of, and microwave spectra   
2201
Sodium chloride
          crystal structure     0905
          melting     0905
          dissolving in water     0905, 0906
Solubility
          of ionic salts in water     0508, 0905, 0906
          of liquids in each other,   See miscibility
Solubility "rules" for ionic salts in water     0906
Solutes
          solute concentration     0907
          electrolytes or non-electrolytes?     0909
Solutions, aqueous     Chapter 09
          What is a solution? What is not?     0901
          Concentrations of solutions    0907
                  vs. concentrations of species in solution     0912
Speciation     0908
Species, chemical     0908,  0912
Species concentration in solution     0912
Spectra, emission and absorption     2201
Spectroscopy     Chapter 22,  2200, 2201
          infrared     2201
          microwave     2201
          UV-visible     2201, 2203
Spontaneous direction of net reaction     1102
Stoichiometry     0505,   0506
Stretching vibrational modes of molecules  2709   
Strong 
(Meanings of concentrated, dilute, strong, weak)     0911
Strong electrolytes     0910
Stuff     Chapter 02,   See matter
Suspensions     0901
Symmetric stretching, vibrational modes of molecules  2709   
Transmittance of coloured solutions   
 2204
Ultraviolet-visible spectroscopy    2201, 2203
Vibrational energy in molecules
          quantisation of   
2201, 2706   
Vibrational modes of molecules   2709    
Visible spectroscopy   
2203
Visualization   
          of dynamic chemical equilibrium     1101
Water
          polarity of water molecules     0905
          role in dissolving ionic salts     0905, 0906

Weak 
(Meanings of concentrated, dilute, strong, weak)     0911
Weak electrolytes
          vs. strong    0910
         
quantitative, % ionisation    
0913
White light    2201

​


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  • HOME
  • NAVIGATION
    • Table of contents
    • Index
    • TALK WITH PROF BOB?
  • LEARNING MODULES
    • Chapter 02 Stuff, matter: What is it? >
      • 0200 Stuff, matter: A theory of atoms
      • 0201 Atoms: The building blocks of all stuff
      • 0202 People classifying stuffs. Why?
    • Chapter 05 Chemical reactions and chemical equations >
      • 0500 Chemical reactions and chemical equations. Overview
      • 0501 Chemical amount and its unit of measurement, mole
      • 0502 The Avogadro constant: How many is that?
      • 0503 The Avogadro constant: Why is it that number?
      • 0504 Chemical formulas: What can they tell us??
      • 0505 Chemical equations: What can they tell us?
      • 0506 Limiting reactants: How much reaction can happen?
      • 0507 Balanced chemical equations: What are they?
      • 0508 Chemical reactions as competitions
    • Chapter 09 Aqueous solutions >
      • 0901 What is a solution? And what is not?
      • 0902 Miscibility of liquids in each other
      • 0903 Like dissolves like? Shades of grey
      • 0905 Dissolution of ionic salts in water: A competition
      • 0906 Can we predict solubilities of salts?
      • 0907 Solution concentration
      • 0908 Chemical species, speciation in aqueous solution
      • 0909 Solutes: Electrolytes or non-electrolytes?
      • 0910 Electrolytes - strong or weak?
      • 0911 Concentrated, dilute, strong, weak
      • 0912 Species concentration vs. solution concentration
      • 0913 Weak electrolytes: Getting quantitative
    • Chapter 11: Dynamic chemical equilibrium >
      • 1100 Dynamic chemical equilibrium: Overview
      • 1101 Visualising dynamic chemical equilibrium
      • 1102 The jargon of chemical equilibrium
      • 1103 Equilibrium constants: The law of equilibrium
      • 1104 The law of equilibrium: an analogy
    • Chapter 22 Evidence from spectroscopy >
      • 2200 Spectroscopy: Overview and preview
      • 2201 Quantisation of forms of energy
      • 2202 Light: Wave-particle "duality"
      • 2203 Ultraviolet-visible spectroscopy
      • 2204 Beer’s law: How much light is transmitted?
    • Chapter 27 The greenhouse effect, climate change >
      • 2700 The greenhouse effect: overview
      • 2701 Is Earth in energy balance?
      • 2702 CO2 in the atmosphere before 1800
      • 2703 So little CO2! Pffft?
      • 2704 Does CO2 affect Earth's energy balance?
      • 2705 The "greenhouse effect"
      • 2706 Why does CO2 absorb radiation from Earth?
      • 2707 The "enhanced greenhouse effect"
      • 2708 Why doesn't CO2 absorb the radiation from the sun?
      • 2709 Why are N2 and O2 not greenhouse gases?
      • 2710 Doesn't water vapour absorb all the IR?
      • 2711 Carbon dioxide from our cars
      • 2712 The source of energy from combustion
      • 2713 Comparing fuels as energy sources
      • 2714 Methane: How does it compare as a GHG?
      • 2715 Different sorts of pollution of the atmosphere
      • 2716 "Acidification" of seawater
    • Chapter 27 Communicating chemistry >
      • 2700 Overview, preview
      • 2703 The jargon we use
  • TEACHERS' CORNER
    • T01 Communicating chemistry
    • T02 Beer's law
    • T03 Professional amnesia of the chemistry teaching professio
    • T04 Law of equilibrium
    • T05 Visusalizing dynamic chemical equilibrium
    • Information vs. knowledge
  • PERSONAL GALLERY
    • Family
    • Travel
    • Playful dolphins
    • The University of Western Australia
    • Kings Park
    • Perth
    • At work
    • 999 Thermodynamics