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Quick tasks — full planner in the Study tab.
All 118 elements with atomic mass and electron configuration. Search by name, symbol or number, or filter by family.
The everyday math of analytical, physical and inorganic chemistry — done instantly.
Type a formula. Brackets and hydrates work: Ca(OH)2, CuSO4·5H2O, K4[Fe(CN)6].
Enter an unbalanced equation. Use + between species and = or -> between sides.
Fill in any one value at 25 °C and the rest follow (Kw = 1.0×10⁻¹⁴).
Leave exactly one field blank to solve for it.
Molarity = moles ÷ litres. Optionally enter mass + molar mass to get moles.
R = 0.082057 L·atm·mol⁻¹·K⁻¹. Leave one field blank to solve for it.
Mass, volume, temperature, pressure and energy.
Count the significant figures in any measured value.
Notes, flashcards, your task list and a focus timer — all saved on this device.
Pick a course, jot anything. Saves as you type.
Pomodoro — 25 min focus, 5 min break.
Click a card to flip. Build a deck per topic.
Assignments, lab reports, revision goals.
Constants and formulas you reach for most often across analytical, physical and organic chemistry.
A patient tutor with the rigour of an Oxbridge examiner — explains mechanisms, derives equations step by step, and never just hands you the answer.
D.Phil. Chemistry · examiner-grade tutor