Schnelles & Präzises Chemie-Tool
Molare Masse Rechner
Geben Sie eine beliebige Summenformel ein, um Molekulargewicht, molare Masse, prozentuale Zusammensetzung und Atomanzahl mit 4 Nachkommastellen Präzision zu berechnen.
118
118 Elemente
Nₐ
4 Dezimalstellen
100%
100% Client-Seitig
Molekulargewicht
Alle 118 Elemente · IUPAC 2021 Atomgewichte
Schnellbeispiele:
Geben Sie oben eine Formel ein, um das Molekulargewicht zu berechnen
Schritt-für-Schritt Anleitung
Molekulargewicht berechnen
Berechnen Sie die Masse chemischer Formeln in drei einfachen Schritten.
Input a Chemical Formula
Type any chemical formula — H₂O, C₆H₁₂O₆, NaOH, or even complex structures with parentheses and brackets. The molar mass calculator identifies each element, resolves nested groups, and counts every atom. All 118 elements from the periodic table are supported.
NaOH
↓
Na × 1O × 1H × 1
FAQ
Häufig gestellte Fragen
Antworten auf häufige Fragen zum Molekulargewicht und zur Chemie.
Molar mass is the mass of one mole of a substance, expressed in grams per mole (g/mol).
To calculate molar mass: (1) identify each element in the formula, (2) look up each element's standard atomic weight from the IUPAC periodic table, (3) multiply each atomic weight by its atom count, and (4) sum all products.
The Avogadro constant (Nₐ) is exactly 6.02214076 × 10²³ mol⁻¹, as defined by the 2019 redefinition of SI units.
Use the formula: moles = mass (g) ÷ molar mass (g/mol).
Numerically, yes — molar mass and molecular weight have the same value.
Ionic compounds like NaCl don't form discrete molecules, so technically we use 'formula mass' rather than 'molecular mass.' However, the molar mass calculation is identical: sum the atomic weights of all atoms in one formula unit.
This calculator provides molar mass values to 4 decimal places using IUPAC 2021 standard atomic weights.