// multi-utility computation suite · offline · instant · precise
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sci.molar-mass Calculator
Calculates the molar mass of a compound from its chemical formula and atomic weights from the periodic table. Molar mass of NaCl = 22.99 + 35.45 = 58.44 g/mol — one mole of any substance contains 6.022 × 10²³ (Avogadro's number) formula units.
Inputs
Mass
Total mass (kg). Distinct from weight — weight = mass × gravity. Mass is constant; weight varies with location.
Mw
Mass of one mole of the substance (g/mol). Found by summing atomic weights. Converts between grams and moles.
Vol
Three-dimensional space occupied (m³ or L). 1 m³ = 1,000 L.
Rxn
Reference formula or conversion factor shown for context.
Results
moles
Quantity in moles. 1 mol = 6.022 x 10^23 particles. Moles = mass / molar mass.
millimoles
Quantity in moles. 1 mol = 6.022 x 10^23 particles. Moles = mass / molar mass.
molarity (M)
Concentration in moles per litre (mol/L or M). Molarity = moles of solute / litres of solution. To dilute: C1V1 = C2V2.
molecules
Reference formula or conversion factor shown for context.
moles in reaction (×stoich)
Quantity in moles. 1 mol = 6.022 x 10^23 particles. Moles = mass / molar mass.
Avogadro
Reference formula or conversion factor shown for context.