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1. Count out 25 pieces of copper shot and find its mass.

Counting Copper Lab (or Lead, just change all directions to Pb ). 1. Count out 25 pieces of copper shot and find its mass. 2. Divide by 25 to find the mass of one piece of copper shot. 3. Multiply by 200 to estimate the grams that 200 pieces of copper would weigh

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1. Count out 25 pieces of copper shot and find its mass.

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  1. Counting Copper Lab (or Lead, just change all directions to Pb) 1. Count out 25 pieces of copper shot and find its mass. 2. Divide by 25 to find the mass of one piece of copper shot. 3. Multiply by 200 to estimate the grams that 200 pieces of copper would weigh 4. Weigh the number in grams of the amount you got in step #3. Then count the actual number of pieces of copper in that amount of grams 5. Find the absolute difference the actual amount of copper from ideal amount (200) 6. Find your percent error • Follow up tasks: • How much would a mole of copper shot weigh? • 2. Are all the pieces of copper the same size? Is this closer to how atoms actually are? • 3. How many atoms are in one average piece of copper shot? • 4. How would you perform an experiment to find the thickness of a piece of paper? Describe the process, then do it and record the answer. • 5. Pretend you are asked to guess how many jelly beans are in a jar. Without counting the jelly beans, how could you estimate how many jelly beans are in the jar?

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