1. What is Stoichiometry?

Stoichiometry is the calculation of relative quantities of reactants and products in chemical reactions. It is based on the conservation of mass and the concept of moles.

2. How Does the Calculator Work?

The calculator uses the stoichiometric equation:

Where:

• \( n_{\text{product}} \) — Amount of product (mol)
• \( n_{\text{reactant}} \) — Amount of reactant (mol)
• \( \text{coeff}_{\text{product}} \) — Stoichiometric coefficient of product
• \( \text{coeff}_{\text{reactant}} \) — Stoichiometric coefficient of reactant

Explanation: The equation calculates the theoretical amount of product based on the mole ratio from the balanced chemical equation.

3. Importance of Stoichiometry

Details: Stoichiometric calculations are essential for predicting product yields, determining limiting reagents, and ensuring proper reactant ratios in chemical reactions.

4. Using the Calculator

Tips: Enter the amount of reactant in moles and the stoichiometric coefficients for both reactant and product. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What if my chemical equation has multiple reactants or products?
A: This calculator handles one reactant to one product. For complex reactions, you'll need to perform separate calculations for each product.

Q2: How do I get the stoichiometric coefficients?
A: Coefficients come from balancing the chemical equation. For example, in 2H₂ + O₂ → 2H₂O, the coefficients are 2, 1, and 2 respectively.

Q3: What units should I use?
A: The calculator uses moles for all quantities. Convert mass to moles using molar mass if needed.

Q4: Does this account for reaction yield?
A: No, this calculates theoretical yield. Actual yield may be lower due to side reactions or incomplete conversions.

Q5: How precise should my coefficients be?
A: Use whole numbers as they represent molecule counts in balanced equations. Fractions are only used in certain cases like half-reactions.