Actual Yield Formula:
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Definition: This calculator determines the percentage yield of a chemical reaction by comparing the actual amount obtained to the theoretical maximum amount.
Purpose: It helps chemists and students evaluate the efficiency of chemical reactions and identify potential issues in experimental procedures.
The calculator uses the formula:
Where:
Explanation: The ratio of actual to theoretical amount shows what percentage of the expected product was actually obtained.
Details: Yield calculations help assess reaction efficiency, optimize conditions, and identify purification losses or side reactions.
Tips: Enter both actual and theoretical amounts in consistent units (both grams or both moles). Values must be > 0.
Q1: What's considered a good yield?
A: Yields above 90% are excellent, 70-90% are good, and below 50% may indicate problems.
Q2: Why might actual yield be less than 100%?
A: Due to incomplete reactions, side reactions, purification losses, or measurement errors.
Q3: Can yield be greater than 100%?
A: Yes, if product contains impurities, is wet, or measurement errors occurred.
Q4: How do I find theoretical amount?
A: Use stoichiometric calculations based on limiting reagents and balanced equations.
Q5: Should I use grams or moles?
A: Either is fine, but both values must use the same unit for accurate results.