Tap any element for atomic mass, electron configuration, oxidation states, electronegativity and more.
Enter a formula. Supports brackets and hydrates, e.g. CuSO4.5H2O, Ca(OH)2, KAl(SO4)2.12H2O.
Use + between species and = (or ->) between sides.
Molarity, moles, mass — fill any two.
Leave the unknown blank.
Enter one value; the rest are derived (25 °C).
pH = pKa + log([A⁻]/[HA])
Formula + element → oxidation state. (Standard rules; peroxide/hydride exceptions differ.)
Leave the unknown blank. R = 0.08206 L·atm/mol·K.
E = E° − (0.0592/n)·log Q (298 K)
k = A·e^(−Ea/RT). Leave one blank.
Leave exactly one blank (T in Kelvin).
r₁/r₂ = √(M₂/M₁) — molar mass ya formula.
Eq. wt = Molar mass / n-factor
Tap a value to copy. CODATA / standard.
Rate is editable — check today’s exact rate online and update it.
Plot y = f(x). Use x, and functions like sin, cos, sqrt, log, exp, abs, ^.
Tap an icon — the converter opens.
Enter any 3 values, leave the rest blank — the rest are solved.
Computes F, KE, PE and W from whichever pairs you provide (g = 9.80665).
Enter any 2 of V, I and R.
Enter any 2. Use the c button for light.
Enter values with sign convention; leave one blank.
de Broglie: enter m and v. Photon: enter λ only.
Leave one field blank.
Leave either K₂ or ΔH° blank.
Leave either P₂ or ΔHvap blank.
Salt AxBy — enter either Ksp or s.
Leave one field blank. N = N₀(½)^(t/t½)
Formula + (mass ya moles) — doosra nikal jayega.
Coefficients, highest power first. x³−6x²+11x−6 → 1,-6,11,-6
Rows me numbers space se, rows new line se.
Simple +, −, ×, ÷ — for everyday calculations.
New Regime — FY 2025-26 (AY 2026-27) slabs, §87A rebate & marginal relief ke saath.
Estimate only — surcharge and other deductions may vary.
Download a branded PNG card of your last calculation — perfect for sharing.
A branded PNG of the function currently plotted in the Graph tab.
History CSV here; for element data, open any element and export CSV/JSON/TXT.
Ask any chemistry or calculation question in plain language — balancing, mechanisms, stoichiometry, concepts.
Choose a provider and paste your key. The key is stored only on this device and is never sent anywhere except directly to that provider.
Get a key at console.anthropic.com → API Keys. Model used: Claude Sonnet.
Get a key at platform.openai.com → API keys. Model used: GPT-4o mini.
The app checks abcchemistry.com for a newer version automatically. When the AI confirms a reported bug, it re-checks immediately so you get the fix as soon as it is published.
Calculation:
The AI verifies it instantly and gives the correct answer. If it is a real bug, send the WhatsApp report — it will be fixed in the next update.
