Chemistry

13 chemistry tools in Numbers & Units. Each one runs in this tab, so nothing you paste in leaves the machine.

All chemistry tools

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Dilution Calculator
Solve C1V1 = C2V2 for the one term of a dilution you have not measured yet
Electron Configuration Calculator
Look up the ground state electron configuration and noble gas shorthand for any element
Empirical Formula Calculator
Turn a percent composition into an empirical formula, and a molecular formula if the molar mass is known
Ideal Gas Law Calculator
Solve PV = nRT for pressure, volume, moles or temperature when the other three are known
Molarity Calculator
Solve for moles, mass, volume or concentration in a solution when the other three are known
Molecular Weight Calculator
Parse a chemical formula and add up its atomic weights to give the molar mass
Percent Composition Calculator
Work out the mass percentage each element contributes to a chemical formula
Solution Concentration Converter
Convert between molarity, molality, percent by mass and ppm for the same solution
pH Calculator
Work out pH, pOH, [H+] and [OH-] from any one of the four, at 25°C
Half-Life Calculator
Solve N = N0 x (1/2)^(t/T) for the remaining quantity, elapsed time, half-life or starting quantity
Oxidation Number Calculator
Assign oxidation states to the elements in a compound using the standard fixed-value rules and charge balance
Chemical Equation Balancer
Balance a chemical equation and show the whole-number coefficients on each side
Stoichiometry Calculator
Work out moles, the limiting reagent and theoretical yield for a reaction from two reactant masses