Question detail
What is the percentage yield if 50 grams of product were obtained from a theoretical yield of 80 grams?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Use of amount of substance in relation to masses of pure substances
Question
- A. 62.5%
- B. 75%
- C. 50%
- D. 80%
Answer
62.5%
Explanation
The percentage yield is calculated using the formula percentage yield = (actual yield / theoretical yield) x 100. Here, percentage yield = (50 g / 80 g) x 100 = 62.5%.
Common mistake
Confusing Mole Concept
Students often think that one mole of different substances contains different numbers of particles.
Emphasize that one mole of any substance, regardless of its type, contains the same number of particles, which is defined by the Avogadro constant (6.02 x 10^23).
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