# Equivalent Weight Calculator

Introduction

Calculating equivalent weight is a crucial step in various chemical processes and reactions. It helps determine the amount of a substance that will react with a certain quantity of another substance. To simplify this calculation, we present an easy-to-use equivalent weight calculator.

## How to Use

Using the equivalent weight calculator is straightforward. Simply input the relevant values and click the “Calculate” button to obtain the equivalent weight. Follow these steps:

- Enter the molar mass of the substance.
- Enter the valence of the substance.
- Click the “Calculate” button to get the equivalent weight.

## Formula

The formula for calculating equivalent weight (EW) is given by:

## Example Solve

Let’s consider an example where we want to find the equivalent weight of sulfuric acid (H₂SO₄):

- Molar mass of H₂SO₄ = 98 g/mol
- Valence of H₂SO₄ = 2
- Using the formula:

- So, the equivalent weight of sulfuric acid is 49 g/mol.

**FAQs**

**Q: What is equivalent weight?**

Equivalent weight is the mass of a substance that reacts with one mole of hydrogen ions (H⁺) or one mole of electrons in a chemical reaction.

**Q: How is equivalent weight different from molecular weight?**

While molecular weight represents the mass of a molecule, equivalent weight is specific to the reaction it undergoes. It accounts for the number of reacting species involved in a reaction.

**Q: Why is equivalent weight important in chemistry?**

Equivalent weight is crucial for stoichiometric calculations in chemical reactions. It helps determine the amounts of reactants required to achieve a desired outcome.

**Q: Can equivalent weight be negative?**

No, equivalent weight cannot be negative as it represents a physical quantity of a substance involved in a reaction.

## Conclusion

The equivalent weight calculator provided here simplifies the process of determining equivalent weight, a fundamental parameter in chemistry. By inputting the molar mass and valence of a substance, users can quickly obtain the equivalent weight, aiding in various chemical calculations.