Quickly determine the equivalent weight of various chemical substances like acids, bases, and salts. Our free Equivalent Weight Calculator simplifies complex stoichiometry, helping you understand and perform accurate chemical calculations for your experiments and studies. Master chemical reactions with precise measurements!
Formula:
The general formula to calculate equivalent weight (EW) is:
EW = Molar Mass / n-factor
Where:
- Molar Mass: The mass of one mole of the substance (g/mol).
- n-factor: A substance-specific factor, also known as the valency factor. It can represent:
- For elements: Valency.
- For acids: Basicity (number of H+ ions it can donate).
- For bases: Acidity (number of OH- ions it can accept).
- For salts: Total positive charge of the cation (e.g., 2 for CaSO4 from Ca2+).
- For redox agents: Total change in oxidation state per molecule in the reaction.