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4. Consider the tabulated data collected by a student for an unknown metal sample. Use this data to calculate the density of the metal (in g/cm³). Show your work clearly. Density of a compound is given by: Mass of compound (in g) Density = Mass of Empty Beaker Mass of Beaker and Metal sample Initial volume of water in cylinder Final volume of water and Metal sample 44.656 g 124.400 g 12.7 mL 21.6 mL Volume of compound (in cm^3 or mL) 79.744 g

4. Consider the tabulated data collected by a student for an unknown metal sample. Use this data to calculate the density of the metal (in g/cm³). Show your work clearly. Density of a compound is given by: Mass of compound (in g) Density = Mass of Empty Beaker Mass of Beaker and Metal sample Initial volume of water in cylinder Final volume of water and Metal sample 44.656 g 124.400 g 12.7 mL 21.6 mL Volume of compound (in cm^3 or mL) 79.744 g

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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With respect to the rules of sig figs explained in the first image, is 8.96 g/cm3 the correct answer or would it need to be two sig figs instead?

4. Consider the tabulated data collected by a student for an unknown metal sample. Use this data to calculate the density of the metal (in g/cm³). Show your work clearly. Density of a compound is given by: Mass of compound (in g) Density = Mass of Empty Beaker Mass of Beaker and Metal sample Initial volume of water in cylinder Final volume of water and Metal sample 44.656 g 124.400 g 12.7 mL 21.6 mL Volume of compound (in cm^3 or mL) 79.744 g 8.9 cm^3 Density of metal sample= Mass of sample = Mass of beaker & metal sample - mass of empty beaker 124.400 g -44.656 g = 79.744 g Volume of sample = Final volume of metal & water sample - initial volume of water in cylinder 21.6 mL 12.7 mL = 8.9 mL or cm^3 = 8.96 g/cm^3
Transcribed Image Text:4. Consider the tabulated data collected by a student for an unknown metal sample. Use this data to calculate the density of the metal (in g/cm³). Show your work clearly. Density of a compound is given by: Mass of compound (in g) Density = Mass of Empty Beaker Mass of Beaker and Metal sample Initial volume of water in cylinder Final volume of water and Metal sample 44.656 g 124.400 g 12.7 mL 21.6 mL Volume of compound (in cm^3 or mL) 79.744 g 8.9 cm^3 Density of metal sample= Mass of sample = Mass of beaker & metal sample - mass of empty beaker 124.400 g -44.656 g = 79.744 g Volume of sample = Final volume of metal & water sample - initial volume of water in cylinder 21.6 mL 12.7 mL = 8.9 mL or cm^3 = 8.96 g/cm^3
Since measurements are often used in calculations to obtain other values of interest, it is important to consider the number of significant figures that should be recorded for the results of such calculations. If multiplying or dividing measured values, the result should be reported with the lowest number of significant figures used in the calculation. If adding or subtracting measured values, the result should be reported with the lowest number of decimal places used in the calculation.
Transcribed Image Text:Since measurements are often used in calculations to obtain other values of interest, it is important to consider the number of significant figures that should be recorded for the results of such calculations. If multiplying or dividing measured values, the result should be reported with the lowest number of significant figures used in the calculation. If adding or subtracting measured values, the result should be reported with the lowest number of decimal places used in the calculation.
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