You have a mole of ping pong balls and want to ship them to a near-by town. You have packing boxes that measure 24 inches by 24 inches by 18 inches. How many boxes do you need to pack up all the ping pong balls? The radius of a ping pong ball is 20 mm. If you make any approximations or assumptions, please list them.

Q: Tin, element 50 on the periodic table, has 10 stable isotopes. 117^Sn makes up 7.687% of naturally…

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