Chemistry · Stoichiometry
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What is 50% yield when actual yield and theoretical yield are 2g and 4g respectively?
- A
25%
- B
50%
- C
75%
- D
85%
The percentage yield is calculated using the formula: Percentage Yield = (Actual Yield / Theoretical Yield) × 100. In this case, the actual yield is 2g and the theoretical yield is 4g. Plugging in these values gives: (2g / 4g) × 100 = 50%. Therefore, the correct answer is 50%. The other options are incorrect as they do not reflect the actual yield in relation to the theoretical yield given in the question.
This option incorrectly suggests that the yield is lower than the actual yield. A percentage yield cannot be less than 0% or higher than 100% based on the actual and theoretical yields provided.
This is the correct answer. It correctly reflects the calculation of percentage yield: (2g / 4g) × 100 = 50%.
This option is incorrect. A yield of 75% would imply an actual yield of 3g when the theoretical yield is 4g, which is not the case here.
This option is also incorrect. An 85% yield would suggest an actual yield of 3.4g, which is not aligned with the given actual yield of 2g.
Tagged under Chemistry · Stoichiometry · 2025