To give an accurate answer, you have to give us an idea of how the truck is configured.. a 780 with standard 12k steer and 40k drive axles is going to differ greatly in weight than a heavy haul truck with, say, a 20k steer and 50k drive axles. The motor is going to affect weight, as well. The lightest motor will be the Volvo VE D 12, and the heaviest will be the Volvo VE D 16. In between those motors, there were several other motors available in various years - 12.7 litre 60 Series Detroit, Cummins M11, N14, and ISX, Caterpillar 3306, 3406, C12, C13, C15, and possibly the C16, etc...
15,000 to 18,000 lbs., depending on options.
Curb weight for a 780 is typically between 18,000 - 19,000 lbs.
~17,500 - 19,000 lbs, depending on specifics.
Somewhere in the vicinity of 17,000 - 18,000 lbs.
Assuming you're referring to a Volvo VNL 780 truck, with the double bunk sleeper, 12'6".
You'd have to contact Volvo customer service for this. IIRC, there were a couple different options for the 730 and 780.
You'd be in the 18,000 lb. range.
20,000 pounds give or take some depending on fuel
96 inches.
with a fridge
Try seaking seal
Volvo dealership. Have fun with that... if you've never taken off a Volvo starter, you could be in for a lot of excitement.