Answered: Unknown Code Sample A Sample D Sample E…

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter2: Measurements And Calculations

Section: Chapter Questions

Problem 32QAP: Why can the length of the pin shown in Fig. 2.5 not be recorded as 2.850 cm?

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Unknown Code	Sample A	Sample D	Sample E	Sample G	Sample F
Calculated Density using the Ruler (g/cm3)
Calculated Density using Water Displacement (g/mL)
Average Experimental Density of Both Methods (g/cm3)
Identity of Unknown (compare the average experimental density with density from the table given above).
//////////	//////////	//////////	//////////	//////////	//////////
"True" Identity of Unknown from the Key Table	Copper	PVC	Aluminum	Acrylic	Iron
"True " Density of Unknown from the Key Table (g/cm3)	8.96	1.39	2.70	1.15-1.20	7.87
% Error

Iron - Density(g/cm^3) = 7.87
Copper-Density(g/cm^3) = 8.96
Aluminum-Density(g/cm^3) =2.70
Acrylic-Density(g/cm^3) = 1.15-1.20
PVC-Density(g/cm^3) =1.39

Please complete the rest of the table and show work. Information about this is on the attached photos.Thank you

Unknown
Mass (g)
Length of one
Volume (cm³)
Sample A
145.507
2.50
15.6
Sample D
24.460
2.50
15.6
Sample E
44.396
2.50
15.6
Sample F
18.429
2.50
15.6
Sample G
124.369
2.50
15.6

Unknown
Final Water
Volume (ml)
Initial Water
Volumo/ml)
Sample
Volume (ml)
Sample A
187
171
16
Sample D
111
96
15
Sample E
110
94
16
Sample F
108
93
15
Sample G
114
98
16

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