Describe a procedure you could use to determine the density of a penny.
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Step 1: To determine the density of a penny, we need to know its mass and volume. Show more…
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An experiment is performed to determine if pennies are made of pure copper. The mass of 10 pennies was measured on a balance and found to be $24.656 \mathrm{~g}$. The volume was found by dropping the 10 pennies into a graduated cylinder initially containing $10.0 \mathrm{~mL}$ of water. The volume after the pennies were added was $12.90 \mathrm{~mL}$. Calculate the density of the pennies. If the density of pure copper at the same temperature is $8.96 \mathrm{~g} / \mathrm{cm}^{3}$, are the pennies made of pure copper?
Adi S.
Table C: Density and Volume of 10 pennies by water displacement. Mass of 10 pennies (g): 25.068 g Initial volume of water in graduated cylinder (mL): 30.0 mL Final volume of water in graduated cylinder with pennies (mL): 33.9 mL Volume of 10 pennies (mL): Density of 10 pennies: Density of a penny = (Density of 10 pennies / 10) Show your work for the calculation of the Volume of 10 pennies, the density of 10 pennies, and the density of a penny below. Q5. Reflect on calculating volume by measuring the dimensions of a penny. Which measurement do you trust more: the measurement of a single penny's diameter or the average diameter of 10 pennies? Why?
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