Prelaboratory Exercises 1. An object was carefully weighed on three different balances. Each balance was zeroed before weighing. The masses were: 10.35 g, 10.355 g, and 10.30 g. Calculate the average value of these measurements. (Please show all work and pay attention to significant figure rules.) 2. Using the average value to represent your true value, calculate the absolute error and percent error of each weighing found in question 1. Show all work. 3. Initially 10.0 mL of water was placed in a graduate cylinder and then a solid metal was immersed in the water in the graduated cylinder. At this point, the volume of water was olid in 0.25c what is the dancity?
Prelaboratory Exercises 1. An object was carefully weighed on three different balances. Each balance was zeroed before weighing. The masses were: 10.35 g, 10.355 g, and 10.30 g. Calculate the average value of these measurements. (Please show all work and pay attention to significant figure rules.) 2. Using the average value to represent your true value, calculate the absolute error and percent error of each weighing found in question 1. Show all work. 3. Initially 10.0 mL of water was placed in a graduate cylinder and then a solid metal was immersed in the water in the graduated cylinder. At this point, the volume of water was olid in 0.25c what is the dancity?
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 119CP: Many times errors are expressed in terms of percentage. The percent error is die absolute value of...
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Just need confirmation of my current answers, especially there significant figures
Transcribed Image Text:Experiment 1-Measurements and Density
Prelaboratory Exercises
1. An object was carefully weighed on three different balances. Each balance was zeroed
before weighing. The masses were: 10.35 g, 10.355 g, and 10.30 g. Calculate the average value
of these measurements. (Please show all work and pay attention to significant figure rules.)
2. Using the average value to represent your true value, calculate the absolute error and
percent error of each weighing found in question 1. Show all work.
3. Initially 10.0 mL of water was placed in a graduate cylinder and then a solid metal was
immersed in the water in the graduated cylinder. At this point, the volume of water was
read as 15.5 mL. If the mass of the solid is 9.25 g, what is the density?
3
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