Which topics are covered?

Molar quantities (moles, molecules), solutions (molarity, molality, dilution, ppm), acids and bases (pH, pOH, weak acids), gas laws (ideal gas, Boyle, Charles, density), stoichiometry and yield, and photon energy.

How do I find molar mass?

Sum the atomic masses from the periodic table - e.g. water H₂O = 2 × 1.008 + 15.999 = 18.015 g/mol, which is the built-in default.

What temperature units do gas laws use?

Kelvin. Convert with K = °C + 273.15. Pressure defaults use pascals (1 atm = 101,325 Pa).

Is the weak acid pH exact?

It uses the standard approximation [H⁺] ≈ √(Ka·C), accurate whenever dissociation is small relative to the concentration - the case for most coursework.

Chemistry Calculator - Moles, Solutions, Gas Laws & pH

Fifteen chemistry formulas with step-by-step working: moles and molar mass, molarity and dilution, pH and pOH, gas laws, stoichiometry, ppm and photon energy.

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From Moles to Gas Laws in One Place

AiLoveKit's chemistry calculator covers the calculations students meet across general chemistry: converting mass to moles and molecules, preparing and diluting solutions, reading pH, predicting gas behavior and working stoichiometric yields.

Lab-Ready Details

Every step shown - dilution factors, intermediate mole amounts and pOH values appear with the main answer.
Sensible defaults - water’s molar mass, acetic acid’s Ka and dry-air density preload so results appear immediately.
Instant - change any input and the solution rewrites itself, perfect for homework and lab prep.

Need the physical side of the science? The Physics Calculator covers heat, work and energy with the same transparent steps.