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A student performs an experiment to identify the density of copper. She pours 20.0 ml of deionized water ( d= 1.00 g/cm³) to an empty graduated cylinder and adds copper shots. At the end of each addition she records the total mass and the volume. Using the following collected data by her make a graph in excel and find the best line, which fits to those data. Identify the line equation*, and determine the density of copper shots. (Show the graph to your instructor and obtain his/her signature ). * It is very important to force the y intercept to zero as we now at zero volume, mass is also zero Volume (ml) Total Mass (g) Water Mass (g) Aluminum Mass (g) 0.0 5.00 5.85 6.65 9.45 25.314 30.204 32.134 34.506 41.614

A student performs an experiment to identify the density of copper. She pours 20.0 ml of deionized water ( d= 1.00 g/cm³) to an empty graduated cylinder and adds copper shots. At the end of each addition she records the total mass and the volume. Using the following collected data by her make a graph in excel and find the best line, which fits to those data. Identify the line equation*, and determine the density of copper shots. (Show the graph to your instructor and obtain his/her signature ). * It is very important to force the y intercept to zero as we now at zero volume, mass is also zero Volume (ml) Total Mass (g) Water Mass (g) Aluminum Mass (g) 0.0 5.00 5.85 6.65 9.45 25.314 30.204 32.134 34.506 41.614

Chemistry
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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A student conducts an experiment to determine the density of copper. She uses 20.0 ml of deionized water (density \(d = 1.00 \, \text{g/cm}^3\)) in an empty graduated cylinder and adds copper shots incrementally. She records the total mass and volume for each addition: **Data Collected:** | Volume (ml) | Total Mass (g) | Water Mass (g) | Aluminum Mass (g) | |-------------|----------------|----------------|-------------------| | 0.0 | 25.314 | | | | 5.00 | 30.204 | | | | 5.85 | 32.134 | | | | 6.65 | 34.506 | | | | 9.45 | 41.614 | | | **Instructions:** 1. Use Excel to plot the data and find the best-fit line. 2. Make sure the line equation starts at zero, because at zero volume, mass is also zero. 3. Determine the density of the copper shots from the graph. 4. Present the graph for verification and signature. **Additional Task:** Calculate the percent error in the experiment if the exact density of aluminum is \(2.70 \, \text{g/cm}^3\). This exercise involves important steps in graphing and analyzing experimental data to find density, demonstrating real-world applications of linear equations and error analysis.
Transcribed Image Text:A student conducts an experiment to determine the density of copper. She uses 20.0 ml of deionized water (density \(d = 1.00 \, \text{g/cm}^3\)) in an empty graduated cylinder and adds copper shots incrementally. She records the total mass and volume for each addition: **Data Collected:** | Volume (ml) | Total Mass (g) | Water Mass (g) | Aluminum Mass (g) | |-------------|----------------|----------------|-------------------| | 0.0 | 25.314 | | | | 5.00 | 30.204 | | | | 5.85 | 32.134 | | | | 6.65 | 34.506 | | | | 9.45 | 41.614 | | | **Instructions:** 1. Use Excel to plot the data and find the best-fit line. 2. Make sure the line equation starts at zero, because at zero volume, mass is also zero. 3. Determine the density of the copper shots from the graph. 4. Present the graph for verification and signature. **Additional Task:** Calculate the percent error in the experiment if the exact density of aluminum is \(2.70 \, \text{g/cm}^3\). This exercise involves important steps in graphing and analyzing experimental data to find density, demonstrating real-world applications of linear equations and error analysis.
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