E-CodeLimiting reagent for any number of reactants — a TI-89 Titanium program
STOICH89 is a TI-89 BASIC program for the TI-89 Titanium. Type the reactants' coefficients, molar masses and grams as lists (two, three or more reactants): the limiting one, the theoretical yield of a product, and the grams of every reactant left over.
What it asks for and what it shows
It asks for 5 values at its prompts. In the example below it shows YIELD G, LEFT 1 G, LEFT 2 G, LIMITING: #2.
Example run
One of its oracle test cases: “2H2 + O2 -> 2H2O, O2 limiting”. The inputs are typed in order, and the results are the values the case expects on the screen.
| Step | Value |
|---|---|
| You enter | |
| Input 1 | {2,1} |
| Input 2 | {2.016,31.998} |
| Input 3 | {10,64} |
| Input 4 | 2 |
| Input 5 | 18.015 |
| The screen shows | |
YIELD G= | 72.06450403 |
LEFT 1 G= | 1.935495968 |
LEFT 2 G= | 0 |
| Text | LIMITING: #2 |
How it's checked
4 test cases, each checked against an independent method. Replayed key by key on a virtual TI-89 Titanium, they make 22 checks.
How E-Code checks every program
Run it or put it on your calculator
- Open the library in the TI-89 Titanium calculator and pick “Limiting reagent for any number of reactants” (STOICH89).
- Put it on your own calculator with a computer and a USB cable, or type it in by hand.
Related programs
- Titration curve: pH for a list of volumes
- Ideal gas PV=nRT: leave one blank
- Molar mass from a chemical formula
All TI-89 Titanium chemistry programs · All TI-89 Titanium programs