← All Mission Packs
Chemistry Grades 9–12

Chemical Reactions Mission

Master stoichiometry, equilibrium, acid-base chemistry, redox, and electrochemistry — essential for AP Chemistry success.

9 activities · Work through in order for a complete lesson arc

1

Molar Mass & Stoichiometry Calculator

Enter any chemical formula to compute molar mass, element breakdown with mass percentages, and step-by-step calculations. Supports parenthesized groups.

2

pH, pOH & Acid-Base Calculator

Enter pH, pOH, [H+], or [OH-] to compute all four. Color-coded pH scale bar, acid/base classification, and step-by-step KaTeX.

3

ICE / Q / K / Ksp Equilibrium Solver

Four equilibrium chemistry modes: build ICE tables and solve for equilibrium concentrations, compare reaction quotient Q to K and predict shift direction, calculate molar solubility from Ksp with optional common ion effect, and solve weak acid/base Ka or Kb for pH and percent ionization. Step-by-step solutions with KaTeX.

ICE tables for equilibrium, Q vs K, and Ksp.

4

Oxidation-Reduction (Redox) Calculator

Enter a chemical reaction to assign oxidation numbers, identify what is oxidized and reduced, and find oxidizing and reducing agents with electron transfer count.

5

Buffer & Titration Curve Explorer

Interactive titration curve tool for strong acid-strong base, weak acid-strong base, weak base-strong acid, and diprotic acid titrations. See real-time pH curve, buffer regions, Henderson-Hasselbalch equation, equivalence points, buffer capacity, and indicator color overlays.

6

Chemical Kinetics Lab

Simulate reaction rates with the Arrhenius equation. Adjust concentration, temperature, and catalysts to observe how particle collision frequency and rate constants change

7

Titration Lab

Simulate acid-base titration with a virtual burette. Watch pH curves develop in real time, find equivalence points, and compare strong and weak acid behavior with indicator color changes

8

Calorimetry Lab

Mix substances at different temperatures and observe heat exchange over time. Calculate specific heat, compare coffee cup and bomb calorimeters, and model heat loss

9

Electrochemistry Lab

Build galvanic and electrolytic cells by selecting anode and cathode metals. Calculate cell potential with the Nernst equation and explore Gibbs free energy relationships

Capstone — galvanic cells and electrolysis.