Phet - chemistry; some simulations requires java plug in.

simulation has multiple potential lesson plans, which could be used as a potential inquiry group work activity and / or illustration during "lecture".

 

ch. 6 Electronic structure of atoms [Brown et al.]

Beer's law: measure absorbance as a function of concentration, pathlength, & wavelength.

if the java based simulation doesn't work, try the html5 version of the simulation.

Beer's Law Lab Screenshot

Bohr model & spectroscopy: electron orbit transition as emission / absorption of light.

 

Models of the Hydrogen Atom Screenshot

photoelectric effect: illustrates Einstein's equation: E(incident) = W + KE.

 

Photoelectric Effect Screenshot

spectroscopy: animation somewhat crudely illustrate that different molecules absorb / emitt different type of light.

   

ch. 10 gas [Brown et al]

gas: measure T & P and histogram of speed & KE as a function of # gas molecules & heat / cool & gas mass.

Gas Properties Screenshot

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ch. 11 modern atomic theory [Zumdahl et al.]

Rutherford scattering: while there's a flaw in the simulation (i.e. inaccurate scale), it can illustrate the deflection of bombarding alpha particles by an atom's nucleus as a function of the alpha particles' KE.

Rutherford Scattering Screenshot

atomic structure: relate (i) # protons, # neutrons, & mass #; (ii) charge & # electrons / protons; (iii) game related to preceding concepts.

if the java based simulation doesn't work, try the html5 version of the simulation.

Build an Atom Screenshot

isotope & average atomic mass: (i) stability of nucleus as a function of the # neutrons, (ii) isotope symbols, and (iii) average atomic mass based on relative amount of various isotopes.

 

average atomic mass

ch. 12 chemical bonding [Zumdhal et al.]

VSEPR: show bond angles & shape of molecules

 

Molecule Shapes Screenshot

molecular polarity: show dipole moment & electrostatic potential surface

Molecule Polarity Screenshot

ch. 7 chemical equations [Zumdahl et al.]

balancing chemical equation: shows molecules / atoms in chemical reaction; also, show atoms via balance or bar chart. there's a game in balancing chemical equations without prior bar chart or balance.

if the java based simulation doesn't work, try the html5 version of the simulation.

Balancing Chemical Equations Screenshot

limiting reactant: uses sandwich example, 3 chemical equations with particulate diagrams, & games, where able to vary the level of "hints", which determines the level of difficulty.

sandwich screen shot

 

 

 

ch. 5 measurement & calculation [Zumdahl et al.]

density: multiple simulations: (i) measure mass & volume of various objects to determine its density, (ii) same mass, but different volume, (iii) same volume, but different mass, and (iv) unknown object with table of density - to identify object. lab handout

Density Screenshot

ch. 15 solutions [Zumdahl et al.]

solution concentration: simulate effect on concentration by (i) addition of solute as solid or solution, and (ii) addition or removal of solvent.

if the java based simulation doesn't work, try the html5 version of the simulation.

 

 

Concentration Screenshot

 

solution: simulate various aspects of solution.

Sugar and Salt Solutions Screenshot

macro tab: simulate effect of (i) dissolving solid salt or sugar and (ii) add / remove solvent on solution conductivity

micro tab: simulate effect of (ii) adding different solid ionic compound or sugar and (ii) add / remove water on [solute]

water tab: simulate hydration shell around ions and sugar in water.

solution: simulate various aspect of solution

Salts & Solubility Screenshot

tablet salt tab: show relative amount of dissolved versus undissolved species

slightly soluble salt tab: similar to preceding simulation, but get a saturated solution quicker than preceding simulation

design a salt: as preceding simulation, where able to simulate various Ksp values [probably inappropriate for regular chemistry class]

ch. 16 acid & base [Zumdahl et al]

acid base: shows relative amount of acid / base, anion, & cation, as well as, simulate use of pH probe / pH paper / conductivity probe. able to simulate the effect of acid / base strength on the preceding parameters.

if the java based simulation doesn't work, try the html5 version of the simulation.

Acid-Base Solutions Screenshot

pH: simulate effect of adding water and acid / base on pH, [H +], & [OH -].

if the java based simulation doesn't work, try the html5 version of the simulation.

 

pH Scale Screenshot

 

blah blah --- pending evaluation

kinetics: blah blah -- pending

Reactions & Rates Screenshot

 

deleted other simulations (since believe not "valuable"); not shown above

accessed Phet website on Oct 2014; so this website would not reflect any revision / addition / deletion of simulations after Oct 2014..