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Этот калькулятор сейчас показан на английском, пока готовится его перевод.

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Проверенный калькулятор с прозрачной формулой

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Percent Yield Calculator.

Calculates the percent yield of a chemical reaction from actual and theoretical yields.

Результаты обновляются в реальном времени по мере ввода.
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Ваши данные

Как это работает

  1. 1

    Enter the actual yield you obtained from the experiment.

  2. 2

    Enter the theoretical yield calculated from stoichiometry.

  3. 3

    Divide actual yield by theoretical yield.

  4. 4

    Multiply by 100 to get the percent yield.

(actual_yield / theoretical_yield) * 100

Часто задаваемые вопросы

What does percent yield tell me?

It indicates the efficiency of a reaction, comparing the amount of product actually obtained to the maximum possible amount.

Can percent yield be over 100%?

Yes, it can happen due to impurities, incomplete drying, or measurement errors, but it usually indicates an issue.

What if theoretical yield is zero?

The calculator requires a positive theoretical yield; if it's zero, the reaction is not defined.

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Результаты

Формула проверена

Percent Yield

85%

Спросить что угодно

Оценка только для общего руководства — проверяйте важные решения с соответствующим специалистом.

Как это работает

Calculates the percent yield of a chemical reaction from actual and theoretical yields.

  1. Enter the actual yield you obtained from the experiment.
  2. Enter the theoretical yield calculated from stoichiometry.
  3. Divide actual yield by theoretical yield.
  4. Multiply by 100 to get the percent yield.

Формулы

Математика, лежащая в основе этого калькулятора, изложена так, чтобы вы могли проверить результат.

Percent Yield Formula

Percent Yield = (Actual Yield / Theoretical Yield) × 100%

This formula expresses the efficiency of a chemical reaction as a percentage.

Example:

Input: Actual = 8.5 g, Theoretical = 10.0 g

Calculation: (8.5 / 10.0) × 100

Result: 85%

Примеры из реальной жизни

Где этот расчет встречается в повседневной жизни.

Lab Experiment Evaluation

Assess how well your synthesis or reaction performed compared to the ideal.

Example: A student obtains 8.5 g of aspirin when the theoretical yield is 10 g.

Process Optimization

Identify inefficiencies in industrial chemical processes to improve yields.

Example: Compare yields across different reaction conditions.

Quality Control

Verify that a product meets expected purity and yield standards.

Example: Check if a batch meets the 90% yield target.

Советы и частые ошибки

Tips

  • Ensure both yields are in the same units (e.g., grams).
  • Use the limiting reagent to calculate theoretical yield accurately.
  • Dry the product completely before weighing to avoid excess mass.
  • Run multiple trials and average the percent yields for reliability.

Common Mistakes to Avoid

  • Using the wrong units for actual and theoretical yields.
  • Forgetting to convert moles to grams when calculating theoretical yield.
  • Not accounting for side reactions that reduce the actual yield.

Допущения и ограничения

  • Use the stated inputs and units.
  • Results are estimates for planning and education.
  • Check measurements and source data before making an important decision.