Theses figures are for a 1998 to 2002 model. 1.5 lbs or .68kg. Basically two standard 12oz cans. If system has been opened you need to add oil.
The Freon capacity for a 1997 Pontiac Trans Sport with dual AC is 46 ounces of R134a refrigerant. The capacity for the same vehicle with single AC is 32 ounces.
R134a
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1.52 lbs of r134a freon...
28 ounces of R134a freon...............
r134a is 26 oz or 1.63lbs
A 1998 Ford does not contain Freon. It contains R134a. It holds 30 ounces of R134a and 9 ounces of oil if it is completely empty.