Soft drinks are commonly sold in aluminum containers. part (a) To an order of ma

Question

Soft drinks are commonly sold in aluminum containers.

part (a) To an order of magnitude, how many such containers are thrown away or recycled each year by U.S. consumers? (Assume an average of 1 can per person each week and a population of 300 million.)

a. 108 cans/yr

b. 1010 cans/yr  

c. 1012 cans/yr

d. 1014 cans/yr

e. 1015 cans/yr

part (b) How many tons of aluminum does this represent? (Assume an average weight of 0.5 oz of aluminum per can.)

a. 101 ton/yr

b. 103 ton/yr   

c. 105 ton/yr

d. 107 ton/yr

e. 109 ton/yr

Explanation / Answer

a)

no of weeks = 53

N = 1*53*300e6 = 1.6*10^10 cans / yr

option B

b) M = 1.59*10^10*0.5 = 2.25*10^5 ton/yr

option c

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