Distance from the Earth to the moon: 384,401 km



Name __________________________________________ Date _______________________ Period ______

Getting Used to the Mole

1 mole = 6.02 x 1023 “objects”

Task #1: Find out how many trips one mole of coke cans (6.02x1023 coke cans) lined end to end will span the distance from the Earth to the moon.

Given: The distance from Earth to moon is approximately 385,000 kilometers (km)

1) Predict: How many trips do you think one mole of coke cans will span from Earth to moon?_________

2) What are the units in your answer going to be? ____________

3) Measure the height of the coke can in centimeters (cm):_________

4) What is the conversion fraction that represents the number of coke cans in one mole?

5) What is the conversion fraction that represents the number of cm per coke can?

6) What is the conversion fraction that represents the number of cm in one meter (m)?

7) What is the conversion fraction that represents the number of m in one km?

8) What is the conversion fraction that represents the number of km in one trip to the moon?

9) Starting with one mole of coke cans, use conversion fractions to convert to trips to the moon. Show work and units!

10) State your results in a complete sentence (How many trips to the moon will one mole of coke cans span?) Compare the answer to your original prediction.

Task 2: Find out how many moles of a random object it will take to reach Pluto.

Given: The shortest distance from Earth to Pluto is 4,280,000,000 km.

1) What random object is at your table? __________

2) Predict: How many moles of this object do you think it will take to get to Pluto? ________

3) What are the units in your answer going to be?_________________

4) Measure the longest edge of the object in centimeters (cm): ___________

5) What is the conversion fraction that represents the number of cm in your object?

6) What is the conversion fraction that represents the number of objects in one mole?

7) Starting with the distance from Earth to Pluto, use conversion fractions to convert to moles of your random object. Show all work and units! (Hint: 1000 m = 1 km, 100 cm = 1 m)

8) State your results in a complete sentence. (How many moles of your object will it take to get to Pluto?) Compare this answer to your original prediction:

9) Were your predictions thus far (coke can and object) too small or too big? Why do you think this might be?

Task 3: Find out how many of the Great Egyptian Pyramids could be constructed using one mole of standard red bricks.

Given:

➢ The volume of the Great Pyramid at Giza is 90,000,000 ft3.

➢ The measurements for a standard red brick are 2”x 3” x 8”.

1) Predict: How many Great Pyramids could be created with one mole of red bricks? ___________

2) What are the units in your answer going to be? ____________

3) Calculate the volume of one red brick. Show all work and units!

(Hint: Volume= length x width x height)

4) Write the conversion fraction that represents the number of red bricks in one mole.

5) Write the conversion fraction that represents the number of in3 in one red brick.

6) Write the conversion fraction that represents the number of ft3 in one Great Pyramid.

7) Starting with one mole of red bricks, use conversion fractions to convert to the number of Great Pyramids. (Hint: 1728 in3 = 1 ft3)

8) State your results in a complete sentence. (How many pyramids can be built with one mole of red bricks?) Compare this answer to your original prediction.

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