This past week I was given the opportunity to present a session on developing apps for the iPhone. I was given 80 minutes to present the process from start to finish. The session drew enough interest to offer it twice which was both a blessing and a curse. I've touched up the slides and added a little text to help them stand on their own a little better. Not sure how interesting the slides will be lacking the audio, but feel free to share your comments.
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What is Titration Simulator?
Beginning chemistry students can use this app to get a feel for conducting an acid-base titration and solving for unknown concentration.
Choose from a set of four strong acids and four strong bases. You'll be using Bromothymol Blue for your indicator...that's blue in basic - yellow in acidic. Rotate the lever to control the flow from the burette and you'll be titrating in no time.
Press "Reset" to run another trial using the same solutions and concentrations.
Determine the volume of standard solution (in the burette) needed to reach the equivalence point. Then, use the information to calculate the unknown concentration (in the flask). Press "Solve" to check your answer.
Practice mode allows you to see the pH of the solution as you titrate. Challenge mode relies solely on the color change to determine equivalence point.
What is CalSim?
Beginning chemistry students can use this app to get a feel for conducting a simple coffee-cup calorimeter experiment.
Quickly set the masses and initial temperatures for your system and go. Observe the output from simulated probes as the system reaches equilibrium. Press "Repeat" to run with the same values or "Setup" to choose a new set.
The Calorimetry Simulator currently has 15 different metals to choose from along with 3 unknowns. Use the simulator to practice calculating the specific heat capacity for the known metals. Once you feel confident with your math, try identifying the three unknowns.
You can also use the simulator to quickly generate your own practice problems to reinforce the concepts. Set up the masses and temperatures, run the trial, record the results. Then, use one or more of the amounts to set up a variety of problems...the best part is you'll already know the answer!
Quickly set the masses and initial temperatures for your system and go. Observe the output from simulated probes as the system reaches equilibrium. Press "Repeat" to run with the same values or "Setup" to choose a new set.
The Calorimetry Simulator currently has 15 different metals to choose from along with 3 unknowns. Use the simulator to practice calculating the specific heat capacity for the known metals. Once you feel confident with your math, try identifying the three unknowns.
You can also use the simulator to quickly generate your own practice problems to reinforce the concepts. Set up the masses and temperatures, run the trial, record the results. Then, use one or more of the amounts to set up a variety of problems...the best part is you'll already know the answer!
What is StoichSim?
Beginning chemistry students can use this app to visualize the mathematical relationships occurring between substances in a chemical reaction.
Get a feel for limiting reactants and how they affect product formation. Analyze mass relationships and apply this logic when solving stoichiometry problems.
The user-friendly interface of the "Simulator" allows you to quickly set the desired reactant masses and run multiple trials in a short period of time. Choose from a variety of reactions.
Click over to "My Trials" to view past trials, make comparisons, or plan future trials.
The "Lab Manual" currently has three activities that will help you better understand the role of limiting reactants, mass relationships, and balanced equations.
Use the simulator to quickly generate your own practice problems to reinforce the concepts. Set up the masses, run the trial, record the results. Then, use one or more of the amounts to set up a variety of problems...the best part is you'll already know the answer!