The actual density of iron is 7.874 g/mL. In a laboratory investigation, Jason finds the density of a piece of iron to be 7.921 g/mL. What is the percent error that is associated with Jason’s measurement?

Percent error is the absolute difference between the measured and actual values divided by the actual value, then multiplied by 100. Here, |7.921 − 7.874| ÷ 7.874 × 100 ≈ 0.597%, which rounds to 0.6%. The correct choice is C, 0.6%.

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