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⚗Labs ✎Teacher ▤Composer

Lab Composer

Build a student lab

Author with verified equipment and actions, then preview the result. Drafts stay in this browser for the demo.

Needs checking

Class

Authoring task

Define

Confirm what students will learn and the audience this lab is designed for.

Draft checklist2 learning objectives selectedUse Check & preview for the final readiness check.

Optional starting point

Describe the lab you want

AI suggests a structure. Litmus runs the safety, support, and simulation checks.

Lab description

3 bounded proposal requests available in this page session.

Final review

Check and preview the lab

Local draft nameSaved draft

Optional AI teaching review · advisory

Review the learning experience

Not run

This review can suggest teaching improvements. It cannot approve the simulation or turn on Preview; only the Litmus checker can do that.

Run this only after the lab checker passes. Litmus will repeat five student scenarios before asking for teaching feedback.

3 review calls and 2 suggested changes left in this page session.

Review limits and usage

Page-session limit: 3 of 3 reviews · 2 of 2 changes left
Time limit: 20 seconds per review
Response limit: 4,000 tokens
Latest usage: No review usage yet

Student purpose

Define the student experience

Lab title (required)Student summary (required)Learning objective summary (required)Grade bandDuration in minutes (required)Difficulty

Learning objectives

Choose the skills students should demonstrate. If an objective is already used elsewhere, you can review what will change before removing it.

Measure MassTares a balance, transfers a solid sample, and records mass at the apparatus resolution.Measure Dissolution EnthalpyConnects a measured solid mass and temperature change to deterministic molar dissolution enthalpy.Endpoint ControlControls delivery rate near a titration endpoint and avoids overshoot.Meniscus ReadingReads the bottom of a concave meniscus at eye level and records apparatus-appropriate precision.Burette ConditioningRinses a burette with the intended titrant before filling and explains the dilution consequence.StoichiometryRelates measured quantities through a supported reaction model and balanced mole ratio.Significant FiguresRecords measurements and calculated results to precision justified by the apparatus and data.Precipitate ObservationConnects a visible precipitate observation to verified solubility truth without guessing product identity.Heat TransferTracks energy transfer between system and surroundings using deterministic calorimetry state.Volumetric TransferConditions a calibrated transfer pipette and delivers a bounded aliquot to a receiving vessel.Solution DilutionPrepares a bounded aqueous dilution by filling to a verified mark, mixing, and using deterministic concentration evidence.Procedural SafetyFollows lab-specific handling and sequencing rules from lab safety checks.Data RecordingRecords observations, units, precision, and step context in a usable lab data table.

Add something students should do or demonstrate

Add an activity check

What should the lab check?How is it used?ObjectiveFeedback type Students can correct this and continue End the attempt when this happensWhich student action?

Shown to students

Student directions

Title (required)Guidance (required)Show with

Read the buretteRecord the meniscus before or after endpoint delivery; both orders are valid when the reading is precise.
Approach the endpointAdd titrant slowly, switching to dropwise control near the endpoint.

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