1.
2. Freon-12 which has the formula CCl2F2 is used as a refrigerant in air conditioners and as a propellant in aerosol cans. Given a 5.56 mg sample of Freon-12:
a. Calculate the number of molecules of Freon -12 in that sample
b. How many mg of chlorine are in the sample?
a) "2.20\u00d710 ^{19}" Molecules
b) 0.00260 grams of Cl
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