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Calculate a molecular formula : ChemCalc  
A Chemical Calculator. Calculates molecular formula, molecular mass, exact mass, elemental analysis and isotopic distribution. Written entirely in Java.
Submitted: May 05, 2001
A reaction applet with several settable fields, such as reaction type, reactants, and others.
Submitted: Nov 10, 1999
A Molecular Formula  
This page contains a formula->mass->formula applet for chemists, biochemists and biologists, with several customizable settings and a simple interface.
Submitted: Nov 10, 1999
Stirling Engine Animation  
An applet showing an animation of a Stirling motor.
Submitted: Nov 09, 1999
Gas Pressure & Molecular Collisions  
This applet shows moving molecules in two side by side containers. You are able to change the temperature, mass and number of molecules in each container. The internal pressure is displayed as a red bar and the barrier can be removed to illustrate diffusion. Either the pressure or volume may be held constant. This is a useful applet for Chemistry 20 chapter 6.
Submitted: Nov 09, 1999
This equilibrium simulation allows you to experiment with the variables that affect reaction rates and the extent of a chemical reaction. You can change the following parameters: red probability, blue probability, red number, blue number, temperature. This could be useful in chemistry 30.
Submitted: Nov 09, 1999
This applet allows you to see the Gibbs Free Energy Equation from a qualitative or quantitative standpoint.
Submitted: Nov 10, 1999
Ideal Gas Law  
This applet will enable your students to do three experiments and study PV behavior and and PT behavior graphically. The conditions can be modified and three different gases can be chosen. The constant volume and constant temperature experiments worked the best.
Submitted: Nov 09, 1999
MCM-41 OnLine Builder  
MCM-41 (Mobil Crystalline Material) is a silicate obtained by templating mechanism 1 2, 3 . It is ordered to some degree, so that there are arrays of non intersecting hexagonal channels, identifiable by TEM, XRD, and vapor adsorption. By changing the length of the template molecule, the width of the channels can be controlled to be within 2 to 10 nm. The walls of the channels are amorphous SiO2. This feature, together with its exceptional porosity (up to 80 %), makes MCM-41 the least mechanically stable compared to other porous silicas, silica gels or zeolites4. Attempts to synthesize crystalline MCM-41 are under way. The applet below shows MCM-41 as a crystalline structure, and is, thus, an extrapolation of the reality. However, this representation may still be useful in molecular simulations of sorption and diffusion.
Submitted: Nov 09, 1999
The Ideal Atmosphere  
By changing the temperature, mass and the number of molecules, notice the effects in your designed atmosphere. Study the 'Boltzmann distribution' equation through this applet.
Submitted: Nov 10, 1999
Example Coloring Applet  
This applet allows you to mix three colors of light (red, green, and blue) and see the resulting color.
Submitted: Nov 10, 1999
Double-z STO LCAO-SCF calculation on the helium atom  
Using a double-zeta basis of Slater-type orbitals (STOs), the Java applet below calculates the single determinant singlet ground state 1s2 wavefunction of the helium atom.
Submitted: Nov 10, 1999

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