Starter track72 min
Stoichiometry and Yield
Not startedStart with one visible reaction recipe, use the lower batch cap to identify the limiting reagent, and then compare actual output with the same theoretical marker.
Recipe batchesLimiting reagent
Starter track
Follow the authored sequence, or switch to recap mode for a faster review of the same path.
Entry diagnostic
Decide where to enter this path without opening a second testing system.
Reuse the stoichiometric-ratio quick test and the limiting-reagent checkpoint to decide whether to start from complete recipe batches or jump straight to the yield end of the branch.
Start from beginning0 / 2 probes ready
Check the recipe-to-yield bridge first
Start from beginning
No saved diagnostic checks are available yet, so the opening concept is still the best place to start.
Uses the same local-first quick tests, checkpoint challenges, and track history already saved in this browser.
- Quick testNot started5 questions
Recipe-ratio quick test
Check whether full recipe batches already feel more trustworthy than raw packet counts.
No saved quick-test result yet.
Recipe ratios - ChallengeNot started8 checks
Make B the limiting reagent
Keep the 2 A + 3 B recipe, but adjust the supplies so B limits the reaction and exactly 3 A packets remain after the full-yield run.
No saved checkpoint attempt yet.
Limiting reagent
About this track
Keep the first scan focused on the next lesson. Open the authored rationale and shared-framework notes only when you need them.
About this track
Keep the first scan focused on the next lesson. Open the authored rationale and shared-framework notes only when you need them.
Why this order
The sequence is authored to keep the model honest.
Stoichiometric Ratios and Recipe Batches comes first because the whole branch depends on reading one complete recipe batch honestly. Limiting Reagent and Leftover Reactants then keeps the same recipe visible while the lower supply cap sets the theoretical output, and Percent Yield and Reaction Extent closes by holding that same theoretical marker steady while the actual tray lands lower.
Shared concept pages
Each step opens the same simulation-first framework.
Compare mode, prediction mode, quick test, worked examples, guided overlays, challenge mode, and read-next cues stay on the concept pages. The track only decides the guided order and the next recommended stop.
Guided path
Follow the concepts and checkpoint moments in order.
Checkpoint cards reuse the authored challenge entries already living on the concept pages.
- 1Not startedNewStart here
Stoichiometric Ratios and Recipe Batches
Keep one reaction recipe visible so stoichiometric ratios read as complete batches, not detached worksheet proportions.
Start here before moving into Limiting Reagent and Leftover Reactants.
Stoichiometry and YieldIntro24 min - 2Not startedNew
Limiting Reagent and Leftover Reactants
Use one recipe bench to see which reactant caps the output first and why the other reactant can remain in excess.
Builds on Stoichiometric Ratios and Recipe Batches before setting up Percent Yield and Reaction Extent.
Stoichiometry and YieldIntro24 min - Checkpoint 1LockedNot started
Make B the limiting reagent
Keep the 2 A + 3 B recipe, but adjust the supplies so B limits the reaction and exactly 3 A packets remain after the full-yield run.
Finish Limiting Reagent and Leftover Reactants first. This checkpoint ties together Recipe ratios and Limiting reagent through Make B the limiting reagent.
Pause here after Limiting Reagent and Leftover Reactants before moving into Percent Yield and Reaction Extent.
Recipe ratiosLimiting reagent8 checksCoreGraph-linkedGuided start - 3Not startedNew
Percent Yield and Reaction Extent
Compare actual output with the same theoretical recipe cap so percent yield stays visual and honest on one shared bench.
Capstone step after Limiting Reagent and Leftover Reactants.
Stoichiometry and YieldIntro24 min - Checkpoint 2LockedNot started
Set a matched run to 75% yield
Use the matched 2 A + 3 B run and set percent yield to 75% so the actual output lands at 3.75 batches.
Finish Percent Yield and Reaction Extent first. This checkpoint ties together Recipe ratios, Limiting reagent, and Percent yield through Set a matched run to 75% yield.
Final checkpoint that closes the authored track after Percent Yield and Reaction Extent.
Recipe ratiosLimiting reagentPercent yield8 checksCoreGraph-linkedGuided start