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chemistry - meaghersclasses

Updated 2 days ago

Education
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These chemistry video podcasts are high school chemistry snippets, from Mt Lawley Senior High School. 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.

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These chemistry video podcasts are high school chemistry snippets, from Mt Lawley Senior High School. 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.

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5 Ratings
Average Ratings
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2

Very helpful reviewing technique!

By levidikuss - Nov 08 2012
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Short videos that are to the point. Thanks!

iTunes Ratings

5 Ratings
Average Ratings
2
0
1
0
2

Very helpful reviewing technique!

By levidikuss - Nov 08 2012
Read more
Short videos that are to the point. Thanks!
Cover image of chemistry - meaghersclasses

chemistry - meaghersclasses

Updated 2 days ago

Read more

These chemistry video podcasts are high school chemistry snippets, from Mt Lawley Senior High School. 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.

Rank #1: ionic compounds and formulae (video) feb 9 2008

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It has been a long time since my last post, holidays and theft of my laptops have conspired against me. I intend to post some episodes of fundamental chemistry principles this year to help those of you in preliminary chemistry courses, or to be used for revision for others. This video chemistry podcast looks at how ionic compounds form, and how we write formulae to represent the relative amounts of ions in ionic compounds.

Feb 09 2008

7mins

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Rank #2: electrochemical cells (audio) sept 19 07

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This enhanced chemistry podcasts looks at some aspects of electrochemistry as displayed in standard, simple high school chemistry experiments. The episode investigates standard reduction potentials, the concept of metal displacement, and electrochemical cells.

Sep 19 2007

4mins

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Rank #3: molecular polarity (audio) feb 18 07

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This is the audiotrack of the chemistry video podcast 'molecular polarity (video) feb 18 07'. It looks at the concpt of electronegativity and how it influences bond and molecular polarity.

Feb 17 2007

6mins

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Rank #4: intermolecular forces (video) feb 25 07

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This chemistry video podcast looks at the intermolecular forces; dipole-dipole interactions and dispersion forces; that occur between covalent molecules. (There is another episode posted last year that looks at hydrogen bonding.)

Feb 25 2007

6mins

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Rank #5: Valence Shell Electron Pair Repulsion (video) August 11th 2008

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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)

Aug 11 2008

5mins

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Rank #6: reaction rates

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This presentation compares collision theory to a foot y game. (vodcast)

May 25 2006

1min

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Rank #7: collision theory

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A brief description of the factors that control the rate of a chemical reaction. (audio)

May 27 2006

1min

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Rank #8: ionisation energy (video) feb 11 07

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This chemistry video podcast looks at defining ionisation energy and explaining trends and periodicity of values for ionisation energy in the periodic table. I look at factors which influence the ease with which electrons may be removed from atoms.

Feb 11 2007

8mins

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Rank #9: ionic equations (video) june 5 07

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A simple concept that causes difficulties for students. ie using ionic equations to represent chemical reactions. This chemistry video podcast explains why spectator ions should not be included in a chemical equation.

Jun 05 2007

6mins

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Rank #10: molecular polarity (video) feb 18 07

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This chemistry video podcast looks how electronegativity determines the type of bond that exists between two atoms, and how the symmetry of the resultant molecule will influence its overall dipole potential.

Feb 18 2007

6mins

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Rank #11: metallic bonds

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A brief description of metallic bonding. (audio)

May 27 2006

1min

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Rank #12: detergents (video) march 4 07

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This short video chemistry podcast investigates the function of detegent molecules. It answers the questions "How can we wash greasy dishes?" and "Why is milk like 'fatty sweat'??!!"

Mar 04 2007

3mins

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Rank #13: electrochemical cells (video) sept 19 07

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This video chemistry podcasts looks at some aspects of electrochemistry as displayed in standard, simple high school chemistry experiments. The episode investigates standard reduction potentials, the concept of metal displacement, and electrochemical cells.

Sep 19 2007

4mins

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Rank #14: preparation and properties of gases - oxygen (video) august 2nd 2008

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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.

Aug 02 2008

2mins

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Rank #15: reactions of hydroxide and ammonia solutions with salts of metals - (video) june 9 2008

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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.

Jun 08 2008

5mins

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Rank #16: preparation and properties of gases - carbon dioxide (video) may 23 2008

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This chemistry video podcast demonstrates the laboratory production of carbon dioxide gas, using thistle funnel, conical flask, gas jar and hydrochloric acid on calcium carbonate, its collection via the upward displacement of air and the subsequent testing that can be performed to illustrate carbon dioxide's properties of density and acidity, as well as the limewater test.

May 25 2008

3mins

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Rank #17: valence shell electron pair repulsion (video) jan 27 07

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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 podcast shows some of these possible shapes and explains their formation.

Jan 27 2007

5mins

Play

Rank #18: valence shell electron pair repulsion (audio) jan 27 07

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Hi, this audio file is a copy of the soundtrack from the podcast 'valence shell electron pair repulsion (video) jan 27 07'. I hope that these audio files prove useful. Please let me know, one way or another.

Jan 27 2007

5mins

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Rank #19: the first 20 elements (video file) (jan 23 07)

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Hi, and welcome back to this year's chemistry podcasts. We'll start the year simply with an acronym to help you remember the first twenty elements in order. I will try to post a separate audio file (ie the sound track for the video podcast) for each episode this year, so that if your mp3 player doesn't have video capabilities, you can still listen to the episodes when you are out and about. Please let me know if you think these audio files are useful.

Jan 23 2007

3mins

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Rank #20: pH and Kw

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In this podcast I look at how pH is determined, what it means, some examples, and some important equilibria.

Nov 14 2006

6mins

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