Expressing Errors in Measurement:Scientists often express their uncertainty and error in measurement by givinga percent error. The percent error is defined as:% erroractual value - measured valuex 100actual valueAnswer the following four questions. Pay attention to significant figures, and showyour work!1. While doing a lab, a student found the density of a piece of pure aluminum to be 2.85g/cm°. The accepted value for the density of aluminum is 2.70 g/cm³. What was thestudent's percent error?22.7026Demystifying Scientific Data: RET 2006, Rev 2

According to the question, Measured density of pure aluminum = 2.85g/cm3 Accepted value for the…

Answered: While doing a lab, a student found the…

While doing a lab, a student found the density of a g/cm. The accepted value for the density of alumi student's percent error?

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

Expressing Errors in Measurement:
Scientists often express their uncertainty and error in measurement by giving
a percent error. The percent error is defined as:
% error
actual value - measured value
x 100
actual value
Answer the following four questions. Pay attention to significant figures, and show
your work!
1. While doing a lab, a student found the density of a piece of pure aluminum to be 2.85
g/cm°. The accepted value for the density of aluminum is 2.70 g/cm³. What was the
student's percent error?
22.70
26
Demystifying Scientific Data: RET 2006, Rev 2

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