Because of increasing evidence of damage to the ozone layer, chlorofluorocarbon

Question

Because of increasing evidence of damage to the ozone layer, chlorofluorocarbon (CFC) production was banned in 1996. However, there are about 100 million auto air conditioners that still use CFC-12 (CF2Cl2). These air conditioners are recharged from stockpiled supplies of CFC-12. If each of the 100 million automobiles contains 1.1 kg of CFC-12 and leaks 25% of its CFC-12 into the atmosphere per year, how much Cl in kilograms is added to the atmosphere each year due to auto air conditioners? (Assume two significant figures in your calculations.)

Explanation / Answer

cfc-12(cl2f2)

108 gms of cfc-12 contains 70 gms of cl.

25% of 1.1 kg is 0.275 kg = 275 gms

so total cl released = (275/108)*70 =178.24 gms

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