Chem 105 Online Density of Metal Stacked Metal Coins 1. Obtain the mass of 5 coins of the same denomination. Note if you are using pennies, nickels, dimes, or quarters. 24.84 2. Measure the diameter of the stack of the coins in cm. Use this measurement to determine the radius of the coin stack. 3. Measure the height of the stacked coins in cm. 4. Using the formulas in the data collection page, determine the volume of the coins. 5. Using the mass and the volume of the coins, determine the density of the coins. 6. Using the accepted value for the metal coin density, determine the percent error. 1.6cm 1. Diameter of the cylinder of coins (Nickels) 2. Radius of the cylinder 0.8cm 3. Calculated area of base of cylinder (area = ²) 4. Height of the cylinder 5. 6. 7. 8. Percent error to 3 sf Calculated volume of the cylinder (volume = area base x height) Mass of stacked coins Calculated density of stacked coins 0.6cm 24.84 Ch PO
Chem 105 Online Density of Metal Stacked Metal Coins 1. Obtain the mass of 5 coins of the same denomination. Note if you are using pennies, nickels, dimes, or quarters. 24.84 2. Measure the diameter of the stack of the coins in cm. Use this measurement to determine the radius of the coin stack. 3. Measure the height of the stacked coins in cm. 4. Using the formulas in the data collection page, determine the volume of the coins. 5. Using the mass and the volume of the coins, determine the density of the coins. 6. Using the accepted value for the metal coin density, determine the percent error. 1.6cm 1. Diameter of the cylinder of coins (Nickels) 2. Radius of the cylinder 0.8cm 3. Calculated area of base of cylinder (area = ²) 4. Height of the cylinder 5. 6. 7. 8. Percent error to 3 sf Calculated volume of the cylinder (volume = area base x height) Mass of stacked coins Calculated density of stacked coins 0.6cm 24.84 Ch PO
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 113CP: On October 21, 1982, the Bureau of the Mint changed the composition of pennies (see Exercise 120)....
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