Calculating Dozens



Calculating DozensTo get credit for this homework, you MUST show all your work using dimensional analysis.1 doz. Basketballs (Bb) = 2.21 x 103 g1 doz. Soccer balls (Sb) = 1.44 x 103 g1 doz. Tennis balls (Tb) = 5.76 x 102 g1 doz. Ping-Pong balls (Pb) = 2.94 x 101 g?What is the mass of 2.3 doz. soccer balls?What is the mass of 2.3 doz. ping pong balls? Compare their masses. The same? Different? Why?What is the mass of 7.6 doz. basketballs?What is the mass of 7.6 doz. tennis balls? Compare their masses. The same? Different? Why?A penny is 1.55 mm thick. Use the following conversions to find out how high a stack of 6.022x1023 pennies would be.1 penny = 1.55 mm1000 mm = 1 m1000 m = 1 km1 mile = 1.609 kmThe average distance to the moon is 238,855 miles. Compare this number to the one you calculated in #7How many years would it take you to spend $6.02x1023 if you spend $1 dollar per minute (Hint: use this as one of your conversion factors 1 min$1) Go online and look up “mole analogy” or “avogadro’s number analogy” and try to find at least one fun analogy to help your classmates understand how big the number 6.022x1023 is. One of my favorites is “Water flows over Niagara Falls at about 650,000 kL (172,500,000 gallons) per minute. At this rate it would take 134,000 years for one mole of water drops (6.02 x 1023?drops) to flow over Niagara Falls.” ................
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