Concentration refers to the relative amount of solute or either solution or solvent. There’s a number ways to express concentration and one way is molarity. Other ways to express concentration are parts per million. When you hear about pollution or things like that, you’ll hear PPM of lead or whatever is in the air. Another […]
Colligative Properties of Solutions
Colligative Properties of Solutions Depends on concentration of dissolved particles: doesn’t mean if they are small or large or charge molecules, just the number of particles per solution. There are four properties. 1. Vapor Pressure. For the rate of vaporization and condensation, that’s going to depend on surface area. When you want to measure the […]
Eagle Owl at 1000fps flying towards a camera
This was pretty cool.
Solutions and Concentrations
About solutions, dissolving and stuff.
Chemistry: Gases, Liquids, Solids
Solids tend to create a crystalline structure while liquids are free to move around each other but still remain together. Gas molecules are separate from each other. Solids Liquid Gases Density (g/cm3) high high very low (g/L) volume/shape fixed fixed/container indefinite/container Compressibility very low very low high Properties of Gases Low Density Expand to fill […]
CNS: Intro to Brain and Ventricles, Medulla Oblongata, Pons, Mid-Brain and Cerebellum
Detailed look at the Ventricles, Medulla Oblongata, Pons, Mid-Brain and Cerebellum
Central Nervous System: Spinal Cord
The spinal cord, meninges, spaces, cerebrospinalfluid and a bit about lumbar punctures.
In regards to the idiotic front-runners going for the PRESIDENCY of the UNITED STATES
Herman Cain, Rick Perry, Mitt Romney, Michele Bachmann??? These are the ones “best able” to lead and run a nation?
Mirrors. Whoa.
The Ring, a mirror cube art installation by Arnaud Lapierre.
Valence electrons, dot structure, electronegativity and VSEPR
If an element has a low # of valence electrons, it tends to give them away while if they have a large # of them, they tend to gain electrons to become stable. For the first 20 elements on the periodic table, we can have up to: 2 electrons in the first shell (1s2), 8 […]