Review $1$

Because of increasing evidence of damage to the ozone layer, chlorofluorocarbon $($CFC$)$ production was banned in $1996.$ However, many older cars still have air conditioners that use CFC$-12(C{F}_{2}C{l}_2).$ These air conditioners are recharged from stockpiled supplies of CFC$-12.$ Suppose that $100$ million automobiles each contain $1\mathrm{.}1kg$ of CFC$-12$ and leak $27\%$ of their CFC$-12$ into the atmosphere per year.

Part A

How much chlorine, in kg$,$ is added to the atmosphere each year due to these air conditioners?

Express your answer using two significant figures.

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