Senior Chemistry: Recent Episodes
PapaPodcasts
KEY CONCEPTS:
Boyle's Law: Pressure and Volume inversely proportional when Temperature is constant
Charles's Law: Volume and Temperature directly proportional when Pressure is constant
Gay-Lussac's Law: Pressure and Temperature directly proportional when Volume is constant
Combined Gas Law: Combines ALL 3 equations into 1
NOTE: Initial terms on left of equal sign and final terms on the right
The following video looks at the Arrhenius and Bronsted-Lowry Theories of Acids and Bases. We look at how acids and bases dissociate in solutions.
This video looks at calculating m/m%, m/v%, v/v%, ppm/ppb and Molar Concentration (molarity)
This video looks at the factors involved with dissolving and solubility as well as the dissociation of ions in hydration.
The following video looks at the steps to solving stoichiometric calculations. We will also work through several sample problems. For more Senior Chemistry podcasts search "Papapodcasts" on iTunes. Thanks for watching.
The following video is on calculating formulas of Hydrate compounds. For more science and math podcasts search Papapodcasts in iTunes
The following video is making calculations for Carbon Hydrogen Combustion Analyzers. For more science and math podcasts search Papapodcasts in iTunes
This video is my lecture on calculating Empirical and Molecular Formulas of Compounds. For more video check me out on iTunes by searching "Papapodcasts".
This video is my lecture on calculating Percentage Composition. For more video check me out on iTunes by searching "Papapodcasts".
The following video introduces the topic of the Limiting Reactant. For more Senior Chemistry lessons search "Papapodcasts" on iTunes. Thanks for watching.
This video is my lecture on the Avogadro constant and its relationship with the mole. For more video check me out on iTunes by searching "Papapodcasts".
Link to Lap Report: http://bit.ly/hXrYav Please print this lab report and bring it with you on the day that you will be conducting this lab in class.
STS: Student Teaching Students: The Labs
Safety Cindy welcomes Hot Jazz, Cool Dani, and Master James to help her explain the procedures involved with the Formation of a Hydrate Lab. Watch this video, acquaint yourself with the materials and procedures so that your lab with run smoothly. Remember to follow proper safety procedures. Do not attempt this without the proper guidance and supervision of a qualified science teacher.
KEY CONCEPTS:
A=represents the CENTRAL ATOM
X=represents the number of surrounding atoms
E=represents the number of unshared electrons surrounding the CENTRAL ATOM
2 Regions of High Density Electrons
AX2 - Linear
3 Regions of High Density Electrons
AX3 = trigonal planar
AX2E = Bent
4 Regions of High Density Electrons
AX4 = tetrahedral
AX3E = Trigonal pyramidal
AX2E2 = Bent
5 Regions of High Density Electrons
AX5 = Trigonal bipyramidal
AX4E = Seesaw
AX3E2 = T-shaped
AX2E3 = Linear
6 Regions of High Density Electrons
AX6 = octahedral
AX5E = Square pyramidal
AX4E2 = Square planar
KEY CONCEPTS:
1. Draw the Lewis structure for the molecule or ion.
2. Count the total number of regions of high electron density (bonding and unshared electron pairs) around the central atom.
* Double and triple bonds count as ONE REGION OF HIGH ELECTRON DENSITY.
* An unpaired electron counts as ONE REGION OF HIGH ELECTRON DENSITY.
* For molecules or ions that have resonance structures, you may use any one of the resonance structures.
3. Identify the most stable arrangement of the regions of high electron density as ONE of the following:
* linear (2 regions)
* trigonal planar (3 regions)
* tetrahedral (4 regions)
* trigonal bipyramidal (5 regions)
* octahedral (6 regions)
KEY CONCEPTS: The following video looks at an introduction to VSPER Theory. We look at what is required for us to identify the shape of the following compound.
KEY CONCEPTS: The following video looks at an introduction to VSPER Theory. We look at what is required for us to identify the shape of the following compound.