1. What is Total Reactant Fed Calculator?

Definition: This calculator determines the initial amount of reactant needed based on the product formed, reaction yield, and unreacted reactant.

Purpose: It helps chemical engineers and chemists determine the required reactant input for a given chemical reaction process.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( R_0 \) — Initial total moles of reactant (moles)
• \( P \) — Total moles of product formed (moles)
• \( \Phi \) — Overall fractional yield (dimensionless, 0-1)
• \( R_f \) — Total moles of unreacted reactant (moles)

Explanation: The product moles are divided by the yield to determine reacted moles, then unreacted moles are added to get the total initial moles.

3. Importance of Reactant Calculation

Details: Accurate reactant calculation ensures proper reaction stoichiometry, cost-effective material usage, and optimal process design.

4. Using the Calculator

Tips: Enter the product formed in moles, fractional yield (typically 0-1), and unreacted reactant in moles. All values must be ≥ 0 (yield > 0).

5. Frequently Asked Questions (FAQ)

Q1: What is fractional yield?
A: Fractional yield is the ratio of actual product formed to the theoretical maximum possible product (0-1 scale).

Q2: How do I determine the unreacted reactant amount?
A: This can be measured experimentally or calculated from material balances in the system.

Q3: Can this be used for batch or continuous processes?
A: Yes, the calculation applies to both batch and continuous reaction systems.

Q4: What if I have multiple reactants?
A: This calculates for one reactant. For multiple reactants, you need stoichiometric ratios.

Q5: Does this account for side reactions?
A: Only indirectly through the yield value, which should reflect all reaction pathways.