2. Suppose you are given a metal object that you weigh on a centigram balance. The recorded mass is 16.78 g. The volume of the object was determined by carefully sliding the metal object into a graduated cylinder containing 27.8 mL of water. The water in the cylinder was displaced up to a final volume of 37.7 mL. 37.7ml-27.8mL = 9.9 a. Determine the density of the metal object m D= 16.789 V 1.7 9.9ml b. Which measurement, mass or volume, limits the number of significant figures? Why?

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...
icon
Related questions
Question
Question number 2 is what I need help with. I tried it but idk if it’s right
Name
Lab Day:
Pre-Lab Questions
Each lab will include a small set of questions to be answered prior to attending lab. Answer these
questions directly on these worksheets. Show all of your work. Attach additional paper if necessary.
Round the final answer to the proper sig figs and include units. Circle your final answer.
1- Accurate Measurement and Density
1. In your own words, explain the difference between accuracy and precision.
Accuracy
is now close valves are to the frue value
VS Precision is how close thoce accuracy values are to eacho-
2. Suppose you are given a metal object that you weigh on a centigram balance. The recorded mass is
16.78 g. The volume of the object was determined by carefully sliding the metal object into a
graduated cylinder containing 27.8 mL of water. The water in the cylinder was displaced up to a
final volume of 37.7 mL.
37.7ml-27.8mL = 9.9
a.
a. Determine the density of the metal object
m
D=
V
D = 16.789
9.9ml
1.7
b. Which measurement, mass or volume, limits the number of significant figures? Why?
Volume because it has the least amount of
figures which is 2.
3. Now suppose that you carefully repeat your experiment using an analytical balance and a
graduated cylinder that can be read to the nearest 0.01 mL. The recorded mass is 16.7755g. The
graduated cylinder readings before and after introducing the metal object are 27.86 mL and 37.86
mL respectively.
Determine the density of the metal object
b. Which measurement, mass or volume, limits the number of significant figures? Why?
Transcribed Image Text:Name Lab Day: Pre-Lab Questions Each lab will include a small set of questions to be answered prior to attending lab. Answer these questions directly on these worksheets. Show all of your work. Attach additional paper if necessary. Round the final answer to the proper sig figs and include units. Circle your final answer. 1- Accurate Measurement and Density 1. In your own words, explain the difference between accuracy and precision. Accuracy is now close valves are to the frue value VS Precision is how close thoce accuracy values are to eacho- 2. Suppose you are given a metal object that you weigh on a centigram balance. The recorded mass is 16.78 g. The volume of the object was determined by carefully sliding the metal object into a graduated cylinder containing 27.8 mL of water. The water in the cylinder was displaced up to a final volume of 37.7 mL. 37.7ml-27.8mL = 9.9 a. a. Determine the density of the metal object m D= V D = 16.789 9.9ml 1.7 b. Which measurement, mass or volume, limits the number of significant figures? Why? Volume because it has the least amount of figures which is 2. 3. Now suppose that you carefully repeat your experiment using an analytical balance and a graduated cylinder that can be read to the nearest 0.01 mL. The recorded mass is 16.7755g. The graduated cylinder readings before and after introducing the metal object are 27.86 mL and 37.86 mL respectively. Determine the density of the metal object b. Which measurement, mass or volume, limits the number of significant figures? Why?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 3 images

Blurred answer
Knowledge Booster
Introduction to Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
Chemistry
Chemistry
Chemistry
ISBN:
9781305957404
Author:
Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:
Cengage Learning
Chemistry
Chemistry
Chemistry
ISBN:
9781259911156
Author:
Raymond Chang Dr., Jason Overby Professor
Publisher:
McGraw-Hill Education
Principles of Instrumental Analysis
Principles of Instrumental Analysis
Chemistry
ISBN:
9781305577213
Author:
Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:
Cengage Learning
Organic Chemistry
Organic Chemistry
Chemistry
ISBN:
9780078021558
Author:
Janice Gorzynski Smith Dr.
Publisher:
McGraw-Hill Education
Chemistry: Principles and Reactions
Chemistry: Principles and Reactions
Chemistry
ISBN:
9781305079373
Author:
William L. Masterton, Cecile N. Hurley
Publisher:
Cengage Learning
Elementary Principles of Chemical Processes, Bind…
Elementary Principles of Chemical Processes, Bind…
Chemistry
ISBN:
9781118431221
Author:
Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:
WILEY