Respuesta :
The percent error is the computation estimation of the error between the observed and true value. The percent error in weighing the object with a mass of 35.0 grams on the balance is 0.4%.
What is the percent error?
A percent error has been also known as an approximation error and is a discrepancy mistake that occurs between the actual observed value and expected value. It estimates the accurate data and expresses the difference between the observed and actual value as a percent.
Given,
Percent error = δ
Actual value observed (Va) = 34.85 grams
Expected value (Ve) = 35.0 grams
The formula to calculate percent error is given as,
δ = (Va - Ve) ÷ Ve × 100%
Substituting values above:
δ = (34.85 - 35.0) ÷ 35.0 × 100%
= 0.428 %
Therefore, the percent error in weighing 35 gm of substance is 0.4%.
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