College Chemistry : Yield and Error

Study concepts, example questions & explanations for College Chemistry

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Example Questions

Example Question #1 : Laboratory Techniques And Analysis

The literature value for the melting point of a given compound is 240 degrees Celsius. A scientist uses the melting point apparatus to experimentally measure the compound's melting point at 230 degrees Celsius. What is the scientist's percent error? 

Possible Answers:

Correct answer:


The percent error is given by the following formula:


In this case, the theoretical value is 240 degrees Celsius, and the actual value is 230 degrees Celsius. The percent error is thus calculated to be 4.16 %. The calculation is as follows:

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