chemistry - meaghersclasses

Richard Meagher

These chemistry video podcasts are high school chemistry snippets, from Mt Lawley Senior High School. Check out my YouTube channel https://www.youtube.com/channel/UCDK3TYmYcgTfjrkQ_t_2tCQ To help make these resources more useful your feedback would be appreciated. You may also want to check out my physics video podcasts at www.meaghersphysics.podomatic.com. Thanks, Richard.

  1. Equilibrium Graphs

    21/10/2016 ·  VIDÉO

    Equilibrium Graphs

    We look at graphs of concentration vs time and rate vs time for the Haber process. Consideration of the value of the equilibrium constant as changes are made to the system at equilibrium are included.

    5 min
  2. Equilibrium Constant Values

    20/10/2016 ·  VIDÉO

    Equilibrium Constant Values

    In this episode we consider some values of an equilibrium, and show that even if the raw ratio of reactants to products is reversed when a chemical equilibrium is reestablished the value of the equilibrium constant remains unchanged, so long as the temperature remains constant.

    4 min

  3. 03/01/2011 ·  VIDÉO

    Equilibrium

    This chemistry video podcast looks at the concept of equilibrium as it applies to chemical systems. (It is an old,ie 2006, episode that I inadvertently deleted when trying to get rid of spam comments!) I really must publish more up to date episodes!! I do intend to get more episodes out this year, along with an epub book on intro chem. Richard

    5 min
  4. Mindocular and the opposing forces (video) jan 15th 2009

    15/01/2009 ·  VIDÉO

    Mindocular and the opposing forces (video) jan 15th 2009

    This chemistry video podcast looks at electrostatic forces and how they are responsible for holding solids together. All four fundamental forces (ie strong, weak, gravitational and electrostatic) are considered. "Mindocular' is a fictional character who has a 'minds eye' with excellent magnification and resolution and can 'see' individual particles in matter, and determine their behaviour. He looks at metallic, ionic and covalent solids.

    5 min

  5. 11/11/2008 ·  VIDÉO

    reactivity of alcohols (video) nov 11th 2008

    This chemistry video podcast investigates the reactions of ethanol, 1-butanol (ie butan-1-ol), 2-butanol (ie butan-2-ol) and methyl-2-propanol (ie methylpropan-2-ol) with potassium dichromate, potassium permanganate and sodium metal. We see that tertiary alcohols are less reactive than secondary alcohols, which are less reactive than primary alcohols.

    4 min

  6. 11/08/2008 ·  VIDÉO

    Valence Shell Electron Pair Repulsion (video) August 11th 2008

    The pairs of electrons that exist in the valence shells of atoms repel each other as far as possible. This repulsion helps determine the shapes of molecules formed in covalent compounds. This chemistry video podcast shows some of these possible shapes and explains their formation. (Some of you have experienced difficulties with the audio on the previous version of this episode. I have re-recorded the soundtrack in this podcast. Let me know if this solves the problem. Richard)

    5 min

  7. 02/08/2008 ·  VIDÉO

    preparation and properties of gases - oxygen (video) august 2nd 2008

    This chemistry video podcast demonstrates the laboratory production of oxygen gas, using thistle funnel, conical flask, gas jar, pneumatic trough, behive shelf and hydrogen peroxide decomposition (catalysed by manganese dioxide), its collection via the downward displacement of water and the subsequent testing that can be performed by reignition of a glowing wick.

    3 min

  8. 08/06/2008 ·  VIDÉO

    reactions of hydroxide and ammonia solutions with salts of metals - (video) june 9 2008

    This chemistry video podcast looks at the reactions of basic solutions (ie ammonia solution and hydroxide solutions) with solutions of metal salts (ie Mg, Al, FeII, FeIII, Cu, Zn, Ag, and Cr). As well as displaying the appearance of the resulting products, the chemical equations representing the reactions are shown. Demonstrated are the production of the complex ions aluminate, zincate and chromate from addition of excess hydroxide to solutions of the amphoteric metal salts of Al, Zn and Cr. The complex ions produced by addition of excess ammonia with Cu, Zn and Ag are also demonstrated.

    6 min
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À propos

These chemistry video podcasts are high school chemistry snippets, from Mt Lawley Senior High School. Check out my YouTube channel https://www.youtube.com/channel/UCDK3TYmYcgTfjrkQ_t_2tCQ To help make these resources more useful your feedback would be appreciated. You may also want to check out my physics video podcasts at www.meaghersphysics.podomatic.com. Thanks, Richard.

Informations

  • Création
    Richard Meagher
  • Années d’activité
    2006 - 2016
  • Épisodes
    56
  • Classification
    Tous publics
  • Copyright
    © Copyright 2026 Richard Meagher
  • Site web de l’émission
    chemistry - meaghersclasses