Not every school has a fully stocked chemistry lab. Glassware breaks, reagents run out, and some experiments are just too risky to hand a room full of teenagers. Noel Chemistry Lab is an Android app built to close that gap. A pocket-sized practical lab covering the core topics of a secondary school chemistry syllabus, from titration to organic chemistry, without a single Bunsen burner in sight.
Here’s a tour of what’s inside.
Thirteen Practicals, One App
Open the app and you’re greeted with a scrollable list of experiments, each one simulating real apparatus and letting you take real measurements. It’s not just a slideshow of facts. Here’s what’s on offer:
- Acid–base titration: Fill the burette, add indicator, watch the colour change, and calculate the concentration of an unknown acid
- Rates of reaction: Uses the usual “disappearing cross” with thiosulfate and acid, plus a gas-collection experiment over time
- Electrolysis: Predict what forms at each electrode for different electrolytes
- Identifying ions: Uses flame tests and precipitate tests to work out what salt you’re holding
- Chromatography: Separate a mixture and calculate Rf values
- The Contact Process: Walk through the industrial production of sulphuric acid, stage by stage
- Mole & concentration toolkit: There are five calculators covering mass, moles, particles, concentration, dilution, gas volume, and empirical formula
- Reaction calculations: Balance any equation, then work out limiting reagent and percentage yield
- Gas & water tests: Identify ammonia, carbon dioxide, hydrogen, chlorine, oxygen, and sulphur dioxide, plus tests for water
- Identify the unknown compound: In this one you run tests, gather evidence, and guess the organic family.
- Heats of reaction: You watch a thermometer rise or fall as substances dissolve, build energy level diagrams, and calculate ΔH from bond energies
- Organic chemistry lab: Build homologous series formulae, combine acids and alcohols into esters, and tell alkanals apart from alkanones
- Bonding & structure: Dip electrodes into different liquids to test conductivity, explore ionic and covalent lattices, and see why some bonds are polar and others aren’t
Built to Feel Like the Real Thing
The philosophy behind every experiment is the same: don’t just describe the practical, simulate it. The burette in the titration experiment actually drains as you add acid. The thermometer in the heats-of-reaction lab actually rises when you dissolve sodium hydroxide and falls for ammonium chloride. The bulb in the conductivity circuit only lights up if you’ve dipped the electrodes into something that actually conducts.
That attention to the apparatus matters. A big part of learning chemistry is building intuition for why a lattice conducts electricity when molten but not when solid, or why the pink colour disappears at exactly the equivalence point. Watching it happen, even in simulation, sticks better than reading it in a paragraph.
A Beautiful Mystery to Solve
One of the more playful additions is the unknown compound identifier. The app picks a random organic substance ( it could be an alkane, alkene, alkanol, alkanoic acid, alkanal, or alkanone) and hands you a set of standard qualitative tests: solubility, bromine water, sodium hydroxide with phenolphthalein, 2,4-DNPH, Fehling’s solution, Tollen’s reagent. You choose which tests to run, read the results, and try to deduce what you’re holding before you commit to a guess. It’s a small thing, but it turns a table of test results from something to memorise into something to reason through.
Calculators That Show Their Work
Stoichiometry trips up a lot of students, so the app leans hard into interactive calculators rather than static formula sheets. The mole toolkit, for instance, lets you type a value into any field (mass, moles, or number of particles) and watches the others fill themselves in. The equation balancer takes a raw, unbalanced equation like Fe2O3 + CO -> Fe + CO2 and works out the correct whole-number coefficients on the spot. The dilution calculator solves for whichever of C₁, V₁, C₂, or V₂ you need, and tells you how much water to add.
The goal isn’t to do the thinking for the student. It’s to let them check their own working instantly, the same way a good teacher would glance over a page of calculations and say “yes, that’s right” or “check that step again.”
Who It’s For
Noel Chemistry Lab is aimed squarely at secondary school chemistry students working through topics like experimental techniques, nitrogen/sulphur/phosphorus chemistry, chemical bonding, stoichiometry, heats of reaction, and the organic chemistry of alkanols, alkanals, alkanones, alkanoic acids, and alkanoates. It’s equally useful as a revision tool before an exam or as a way to actually see a practical that a school might not have the equipment.
There’s no substitute for the smell of a real chemistry lab. But for the days in between, when you just need to check whether you balanced that equation correctly, or you want to watch what really happens when sodium hydroxide dissolves in water, Noel Chemistry Lab is there, right in your pocket.
Click here to download the app
The Curious Mind 