Acids & Bases Solver TI-84 Plus CE Program
Acids & Bases Solver TI-84 Plus CE Program
⚠️ Before You Buy:
• Digital product — No refunds
• Requires TI-84 Plus CE or TI-84 Plus CE Python
• NOT compatible with older TI-84 Plus (black & white screen)
• By purchasing, you confirm you understand this is a digital download and cannot be returned
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Acids & Bases
Reference & Solver
Major acid/base calculations from AP Chemistry and general chemistry — organized, formula-first, and ready for study or review.
Add to Cart — $10.00Compatibility Notice: This is a digital .8xp calculator program designed for the TI-84 Plus CE and TI-84 Plus CE Python. It is not compatible with TI-Nspire, Casio calculators, or older black-and-white TI-83/TI-84 models. Please confirm compatibility before purchasing.
Video Walkthrough
Watch the ACIDBAS1 Walkthrough
See the Acids & Bases Solver Program in action on the TI-84 Plus CE, including pH, pOH, Ka, Kb, weak acids and bases, buffers, titrations, salt hydrolysis, and polyprotic acids.
What's Inside
Six Sections. Major Acid/Base Topics Covered.
ACIDBAS1 is organized into six menus that mirror how students usually learn acids and bases — from basic pH conversions through weak acids, buffers, titrations, salt hydrolysis, and polyprotic acids. Each calculation section displays the relevant formula before asking for inputs.
pH and pOH
Seven conversion calculators: pH from [H⁺], pOH from [OH⁻], and reverse lookups. Includes pH ↔ pOH interconversion.
Ka and Kb
Solve for Ka or Kb from concentrations. Convert pKa ↔ Ka, pKb ↔ Kb. Find conjugate-pair constants via Kw.
Weak Acid / Base
Approximate and exact quadratic methods for weak acids and bases. Flags when the 5% rule is violated. ICE table reference built in.
Buffer Solutions
Henderson-Hasselbalch pH calculator, pKa solver, base-to-acid ratio finder, buffer range calculator, and help for both acid and base buffer forms.
Titration
SA+SB, WA+SB, and WB+SA titrations. Calculates pH before, at, and after the equivalence point. Equivalence-point stoichiometry tools included.
Additional Topics
Strong acid/base lists with key concepts, salt hydrolysis pH, and polyprotic acid stepwise dissociation.
Formula-First Design
The Formula Always Comes First
Before every calculation, ACIDBAS1 shows the relevant equation so students can see what the program is solving. The goal is not just to get an answer — it is to help reinforce the chemistry setup.
Acid and Base Buffer Help: The buffer help screens include both Henderson-Hasselbalch forms: pH = pKa + log([A-]/[HA]) for acid buffers and pOH = pKb + log([BH+]/[B]) for base buffers. The program also reminds students to use pH = 14 - pOH when needed.
Weak Acids & Bases
Approximate and Exact — Both Methods, Your Choice
For weak acid and base pH calculations, ACIDBAS1 offers both solving strategies. The approximate method is fast; the exact quadratic method handles cases where the 5% approximation breaks down — and the program tells students when to check the exact method.
5% Rule Check Built In: After running the approximate method, the program calculates x/C × 100 and warns the student if it exceeds 5%, signaling that the exact quadratic method should be checked.
Buffers
Acid Buffers, Base Buffers, and Henderson-Hasselbalch Help
The buffer section includes a Henderson-Hasselbalch pH calculator, a pKa solver, a concentration-ratio finder, and a buffer range calculator. The help menu explains both acid-buffer and base-buffer forms.
Student-requested clarification: The buffer help menu now includes the pOH version for weak base/conjugate acid buffers, so students can see how to handle base-buffer problems instead of only acid-buffer examples.
Titration
All Three Titration Types — Before, At, and After
ACIDBAS1 covers the three titration scenarios students commonly see, with separate calculation modes for each phase of the titration curve.
| Titration Type | Equiv Pt pH | What the Program Calculates |
|---|---|---|
| SA + SB | pH = 7, neutral salt | Conceptual walkthrough — before, at, and after equivalence point behavior explained. |
| WA + SB | pH > 7, basic | Buffer region pH via Henderson-Hasselbalch; equivalence point via Kb = Kw/Ka and [OH⁻] = √(Kb·C); excess strong base after equivalence point. |
| WB + SA | pH < 7, acidic | Buffer region pH; equivalence point via Ka = Kw/Kb and [H⁺] = √(Ka·C); excess strong acid after equivalence point. |
Half-Equivalence Point: For weak-system titrations, when mol HA = mol A⁻, pH = pKa. For weak base systems, the related pOH/pKb relationship is also included in the concept screens.
The equivalence point calculator also handles 1:1 titration stoichiometry — solving for unknown volume, molarity, or moles for common acid-base pairs.
Additional Topics
Salt Hydrolysis and Polyprotic Acids
🧂 Salt Hydrolysis
Identifies the type of salt — neutral, basic, or acidic — from its parent acid and base, then calculates pH for common hydrolysis cases. Covers the WA+SB case, the SA+WB case, neutral salts, and WA+WB comparisons using Ka vs. Kb.
⚗️ Polyprotic Acids
Includes stepwise dissociation concepts, Ka₁ vs. Ka₂ magnitudes, and pH calculation for weak polyprotic acids using both approximate and exact quadratic methods. Common examples include H₂SO₄, H₂CO₃, and H₃PO₄.
📋 Strong Acid / Base Reference
Built-in list of common strong acids and strong bases, with notes on 1 OH⁻ vs. 2 OH⁻ hydroxide sources and the special behavior of sulfuric acid’s second hydrogen ion.
Complete Topic Coverage
What's Included
- pH from [H⁺] with acid/base classification
- pOH from [OH⁻] with acid/base classification
- [H⁺] from pH, [OH⁻] from pOH
- pH ↔ pOH interconversion
- Ka from concentrations
- Kb from concentrations
- pKa ↔ Ka conversion
- pKb ↔ Kb conversion
- Kb from Ka via Kw; Ka from Kb via Kw
- Kw and conjugate pair relationship
- Weak acid pH — approximate method
- Weak acid pH — exact quadratic method
- Weak base pOH/pH — approximate method
- Weak base pOH/pH — exact quadratic method
- 5% ionization rule check and flag
- % Ionization calculator
- ICE table structure reference
- Henderson-Hasselbalch pH calculator
- Acid-buffer Henderson-Hasselbalch help
- Base-buffer pOH Henderson-Hasselbalch help
- pKa solver from pH and concentration ratio
- Base-to-acid ratio from pH and pKa
- Buffer effective range
- Buffer concepts and adding acid/base effects
- SA+SB titration walkthrough
- WA+SB: before equivalence point
- WA+SB: at equivalence point
- WA+SB: after equivalence point
- WB+SA: before equivalence point
- WB+SA: at equivalence point
- WB+SA: after equivalence point
- Titration stoichiometry
- Salt hydrolysis — identify salt type
- Basic salt pH
- Acidic salt pH
- Neutral salt reference
- Polyprotic acid concepts and examples
- Polyprotic pH — approximate method
- Polyprotic pH — exact quadratic method
- Second dissociation explanation
- H₂SO₄ special case reference
- Strong acid list with key rules
- Strong base list with OH⁻ notes
Get the Program
Add ACIDBAS1 to Your Calculator
Download includes the ACIDBAS1 program file and installation guidance. The program is designed for compatible TI-84 Plus CE calculators.
- ACIDBAS1 program file (.8xp)
- Transfer instructions for TI Connect CE
- 6 calculation sections
- 40+ calculation and reference modes
- Many input checks for common invalid entries
- Formula-first display on calculation screens
Digital Product Notice: This is a digital calculator program. Because digital downloads cannot be returned, please confirm your calculator model is compatible before purchasing. If you are new to TI-84 programs, try a free program first to confirm that you can download and transfer files successfully.
Need help choosing a program? See the AP & General Chemistry Bundle User Guide for a full topic-by-topic breakdown.
Video Walkthrough
Walkthrough Video Coming Soon
What do I need to install the program?
What do I need to install the program?
- TI84 Plus CE (or Python) Calculator
- TI Connect CE Software
- Update Your TI calculator software
- USB mini to USB cord (Should have came with your calculator, or you can buy one from Staples or Best Buy)
How do I install the program on my calculator?
How do I install the program on my calculator?
Can you help me with the TI connect software?
Can you help me with the TI connect software?
Yes! Take a look at this guide for the TI Connect CE Software for more help.
