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 Stoichiometric Calculations

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 from the balanced equation. All values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What if my chemical equation isn't balanced?
A: You must use a balanced chemical equation for accurate stoichiometric calculations. The coefficients must reflect the balanced equation.

Q2: How do I convert grams to moles?
A: Use the formula: moles = mass (g) / molar mass (g/mol). You'll need to know the molar mass of the substance.

Q3: What is the theoretical yield?
A: The theoretical yield is the maximum amount of product that can be produced from given amounts of reactants, assuming complete reaction.

Q4: What is a limiting reagent?
A: The limiting reagent is the reactant that is completely consumed first, limiting the amount of product that can be formed.

Q5: How does this relate to actual experiments?
A: Actual yields are often less than theoretical yields due to incomplete reactions, side reactions, or product loss during purification.