StoichioLab is a chemistry bench that lives in your browser: clamp the burette, pour the reagents, watch the indicator turn, and learn with an AI lab assistant at your side.
The only way to really learn a chemistry practical is to do it: hands on the apparatus, eyes on the colour. But bench time is short, reagents run out, and you only get one or two tries before the lesson ends. StoichioLab gives you the bench itself: drag the burette into the clamp, tip real-looking bottles to pour, slide the conical flask into place, and rinse it all off in the sink when you make a mess. Nothing breaks, nothing runs out, and you can repeat an experiment until it clicks.
Learn walks you through each practical one careful step at a time, with the correct technique and the reason behind it. Explore hands you the whole shelf: three acids, three alkalis and four indicators, so you can discover for yourself why sulfuric acid needs twice the alkali, why ammonia's curve looks different, and which indicator suits which titration. The AI lab assistant can see your bench the whole time, so its answers are about your experiment, not a textbook's.
The name? Stoichiometry is the arithmetic of atoms: the mole ratios behind every reaction. StoichioLab is about turning those numbers into something you can actually see and pour. Titration is live now; qualitative analysis, crystallisation, electrolysis and more are on the way.
Guided, step-by-step practicals: the correct technique, one action at a time, with the reasons why.
The open bench. Pick your reagents, set up the apparatus yourself, and see what the chemistry does.