There are lots of Chevrolet models. You will have to be more specific.
2,689-2,912 lbs. Look here for more info: http://auto.howstuffworks.com/chevrolet-celebrity5.htm
about 5500 lbs
Look on the inside of the door there is a small sticker that will have the truck weight!
it takes 2.4 lbs or 1.1kg
To answer your question I would need to know the year of your Celebrity as well as which one of the four transmissions it has.