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Equivalent weight calculator

Equivalent weight (g/eq) from molar mass and equivalents per mole.

Calculator

How to use

Equivalent weight

$$\text{Eq} = \frac{M}{n}$$

  • n depends on the reaction context (same caveat as normality).

When to use

  • Older texts and industrial specs that still use equivalents.
  • Linking normality to a concrete mass per equivalent.

Educational use only. Double-check values for labs, homework, and exams.