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Phillis used the wrong metal in her experiment which had a very different density than the intended metal. As a result when calculating her results she found that the mass necessary was 612 grams instead of the theoretical 390 grams that was needed. What is her percent error?

Answer :

The percent error is 56. 9%

What is percent error?

Percent error is defined as the difference between the estimated value and the actual value in comparison to the actual value.

The formula for percent error is expressed as;

Percent error = [tex]\frac{|VA - VE|}{VE}[/tex] × 100/1

Where;

  • VA is the actual value = 612 grams
  • VE is the expected value = 390 grams

Substitute the values

Percent error = | 612 - 390| / 390 × 100/ 1

Percent error = 222/ 390 × 100/ 1

Percent error = 0. 56 × 100

Percent error = 56. 9%

Thus, the percent error is 56. 9%

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