In a chemical reaction, if the theoretical yield of product is 50 g and the actual yield obtained is 40 g, what is the percent yield of the process?

• A. 20%
• B. 80%
• C. 90%
• D. 125%

Answer: (B)

Verified step by step guidance

1. Understand that percent yield is a measure of the efficiency of a chemical reaction, comparing the actual yield to the theoretical yield.
2. Recall the formula for percent yield: \(\text{Percent Yield} = \left( \frac{\text{Actual Yield}}{\text{Theoretical Yield}} \right) \times 100\%\).
3. Identify the given values: Theoretical yield = 50 g, Actual yield = 40 g.
4. Substitute the given values into the formula: \(\text{Percent Yield} = \left( \frac{40}{50} \right) \times 100\%\).
5. Simplify the fraction and multiply by 100 to find the percent yield (do not calculate the final number here).