Calculator Online

Home AI Chat AI Math Solver

NEW

Tools ▾ Category ▾

Pricing Sign In

Calculator Online

Your Result is copied!

Percent Yield Calculator

Choose the term you want to calculate (Percent Yield or Actual Yield). Then, enter the required input values, click on the “Calculate” button, and get the results.

To Calculate:

Theoretical Yield

g ▾

Actual Yield

g ▾

Related

Percent Yield Calculator

This percent yield calculator helps determine the efficiency of chemical reactions. It calculates the percent yield—the ratio of the actual product obtained to the theoretical yield. You can also use it to find the actual yield of a reaction.

What is Percent Yield in Chemistry?

Percent yield is the ratio of the actual yield to the theoretical yield, expressed as a percentage. If actual yield equals theoretical yield, percent yield is 100%. Typically, percent yield is less than 100%, but experimental errors or side reactions can sometimes result in >100% yield.

Possible Scenarios:

Percent Yield < 100%: Some product loss occurs during the reaction or isolation.
Percent Yield = 100%: Ideal case; all reactants convert to products.
Percent Yield > 100%: Rare; may result from impurities or side reactions.

Percent Yield Formula

Percent Yield = Actual Yield Theoretical Yield × 100%

Where:

Actual Yield: Amount of product actually obtained.
Theoretical Yield: Maximum product predicted from stoichiometry of the balanced equation.

Note: Ensure both actual and theoretical yields use the same units. If theoretical yield is unknown, use a Theoretical Yield Calculator first.

Factors Affecting Percent Yield

1. Reaction Conditions

Temperature: Alters reaction rate and equilibrium position.
Pressure: Can affect gas reactions and yields.
Catalyst Presence: May increase completion rate and yield.

2. Reaction Type

Reversible Reactions: Equilibrium limits maximum yield.
Side Reactions: Produce unwanted products, lowering yield.

3. Experimental Factors

Incomplete Reactions: Insufficient reaction time or deactivated catalysts reduce yield.
Loss of Product: Handling, filtration, or purification losses.
Experimental Errors: Inaccurate measurements or equipment issues.

4. Industrial Considerations

Maximizing Yield: Industrial processes optimize yield while minimizing waste.
Economic Factors: Higher yields reduce reactant costs.
Product Separation: Efficient separation increases cost-effectiveness.

How to Calculate Percent Yield

Follow these steps:

Balance the Chemical Equation: Determine correct mole ratios.
Identify the Limiting Reactant: Reactant consumed first limits product formation.
Determine Theoretical Yield: Calculate maximum product using stoichiometry.
Determine Actual Yield: Measure the product obtained experimentally.
Calculate Percent Yield:
Percent Yield = Actual Yield Theoretical Yield × 100%

Example:

If the theoretical maximum is 19 g of MgO, but only 15 g forms from MgCO₃, find the percent yield:

Chemical equation:

MgCO₃ → MgO + CO₂

Solution:

Actual Yield = 15 g
Theoretical Yield = 19 g

Percent Yield = (15 / 19) × 100% ≈ 79%

Actual Yield of a Reaction

The actual yield is the measured amount of product obtained.

How to Calculate Actual Yield

Determine theoretical yield and percent yield.
Multiply theoretical yield by percent yield (in decimal form):

Actual Yield = Percent Yield × Theoretical Yield

Use an online actual yield calculator for quick results.

Using the Percent Yield Calculator

Select the calculation type (Percent Yield, Actual Yield, or Theoretical Yield).
Enter values in the input fields.
Click “Calculate” to obtain results instantly.

How to Calculate Percent Yield:

Select “percent yield” from the calculator.
Enter actual and theoretical yields; select units (µg, mg, g, kg, lbs).
Click “Calculate” to get the percent yield.

How to Calculate Actual Yield:

Select “actual yield” from the calculator.
Enter percent yield and theoretical yield; select units.
Click “Calculate” to obtain actual yield.

FAQs

What is a Good Percent Yield?

90% = Excellent
80% = Very Good
50% = Adequate

Can Percent Yield Exceed 100%?

Yes, if the product contains impurities, increasing apparent mass.

Why is Percent Yield Important?

It determines efficiency in chemical manufacturing. Low yields waste reactants and increase costs.

Is a Higher or Lower Percent Yield Better?

Higher yields are generally better for efficiency and cost-effectiveness. Extremely high or low yields may indicate errors or impurities.

Purpose of Percent Yield

Percent yield measures how much reactant converts to product. If no conversion occurs, yield = 0%.

Disclaimer

This calculator is for educational purposes only. Actual experimental results may vary.

References

Related

Calculator Online

Get the ease of calculating anything from the source of calculator online

Links

Home Conversion Calculator About Calculator Online Blog Hire Us Knowledge Base Sitemap Sitemap Two

Support

Email us at