Which term refers to the error expressed as a percentage of the accepted value in a chemical experiment?

• A. Theoretical yield
• B. Percent error
• C. Percent yield
• D. Actual yield

Answer: (B)

Verified step by step guidance

1. Understand that the problem is asking for the name of the term that quantifies the error in a chemical experiment as a percentage relative to the accepted (true) value.
2. Recall that the 'theoretical yield' is the maximum amount of product predicted by stoichiometric calculations, not an error measurement.
3. Recognize that 'actual yield' is the amount of product actually obtained from the experiment, again not an error term.
4. Know that 'percent yield' compares the actual yield to the theoretical yield, expressing efficiency, but it does not measure error relative to the accepted value.
5. Identify that 'percent error' is the term used to express the difference between an experimental value and the accepted value as a percentage of the accepted value, which matches the description in the problem.