Find the Consumable That Limits a Classroom Trial
Calculate whole trials from each consumable and use the smallest capacity as the class limit. A surplus of paper strips cannot replace missing sample cups.
1 · consumable | available units | units per trial
FIRST-LOAD
Input is processed locally. A state link encodes your inputs in its URL: share only non-sensitive rows. Browser history, clipboard and anyone receiving the link may retain it. Optional AI use below leaves this device; it is not required.
Data note: Everything runs in this browser tab on the reagent aliquot: your consumable | available units | units per trial stays on this device, nothing is uploaded, and the reading is rebuilt only when you press run.
Perspective: Before: The class needs every consumable for each trial; the minimum controls. After: the reagent aliquot shows the working beside each named row so the reader can change the assumption and inspect the consequence.
2 · Read the reagent aliquot
This is consumable arithmetic only, not laboratory or chemical safety advice. A qualified teacher or laboratory technician must approve the activity, materials and supervision.
Paid layer: reagent aliquot print and history
one-time step · the free reading above stays complete
Free tier
- one complete reagent aliquot run in the app
- three samples plus unlimited article-demo runs
- unwatermarked result text and an explicit, user-triggered state link
What $4 one-time adds
- print the reagent aliquot with its row workings
- CSV of complete trials and row explanations
- last five reading summaries saved in this browser profile
$4 once for repeated filing of the reagent aliquot, not for a better answer. Illustrative time basis: avoiding one five-minute manual reformat per saved reading; no market-price or guaranteed-savings claim.
Local history (this device)
- No saved runs yet — your first run files here.
Checkout is unavailable until a payment link is configured. The optional unlock is browser-local, profile-scoped and best-effort, not server-verified access. Clearing browser data can remove it; there is no account or cross-device recovery.
Boundary and sources
This is consumable arithmetic only, not laboratory or chemical safety advice. A qualified teacher or laboratory technician must approve the activity, materials and supervision.
- Method: After holding back five cups, fifty-five remain; at three per trial that supports eighteen complete trials. The surplus fraction cannot supply another complete set.
- All sample records are invented examples. The app does not fetch measurements, policies, files or personal records.
- Google’s official pricing page, fetched 2026-09-27, lists free-tier access including AI Studio. Optional formatting only; limits and availability can change. Free-tier content may be used to improve products. Never paste private records there.
Mechanism: competence-autonomy-loop
Optional AI formatting, not calculation
For this reagent aliquot, use the free AI Studio interface only if available to you, with no paid API key. Manual entry completes the same workflow for free. Supply only fictional or non-sensitive notes. Review its output against the source; never paste unresolved questions into the numeric rows.
Format my non-sensitive notes for a reagent aliquot. Return plain rows only: consumable | available units | units per trial. Preserve supplied quantities exactly. Do not guess missing values; list questions separately. Do not calculate or add advice. I will check every row before pasting into the local tool.
Accepted schema: consumable | available units | units per trial. No AI response is executed as code.