a. What kind of trend or pattern is apparent from the graph of mass and volume data? Is there a consistent relationship between the volume and mass of each sample? Justify your response. b. What does the R2 value tell you about the data?
a. What kind of trend or pattern is apparent from the graph of mass and volume data? Is there a consistent relationship between the volume and mass of each sample? Justify your response. b. What does the R2 value tell you about the data?
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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Short Answer 2. Volume displacement is often used to determine the volume of irregularly-shaped objects. Several pieces of jewelry suspected to be made of the same metal were weighed and corresponding volumes were determined by volume displacement (Figure 3, Table 1). Answer the following questions regarding the jewelry samples. Assume the samples are made of only one metal. Shown in photo, I need help with parts A and B.
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2. Volume displacement is often used to determine the volume of irregularly-shaped objects. Several
pieces of jewelry suspected to be made of the same metal were weighed and corresponding volumes
were determined by volume displacement (Figure 3, Table 1). Answer the following questions
regarding the jewelry samples. Assume the samples are made of only one metal.
Unknown Jewelry Samples
Table 1: Volumes and masses of Jewelry
500.00
Volume (cm)
Mass (grams)
400.00
10.00
193.00
300.00
200.00
6.00
115.80
2.00
38.60
100.00
16.00
309.10
0.00 .
20.00
386.00
0.00
5.00
10.00
15.00
20.00 25.00
Volume (cm^3)
R=0.9999
Figure : Mass (grams) and Volume (cm^3) Data for Unknown Jewelry Samples
a. What kind of trend or pattern is apparent from the graph of mass and volume data? Is there
a consistent relationship between the volume and mass of each sample? Justify your
response.
b. What does the R2 value tell you about the data?
7
☆
Mass (grams)
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