1000g is your answer. What volume does that 1000g of water take up? We're talking "In reality" here. Does it differ depending on it's state🤔. Reality, can not be quantified. I don't care what you or Mr Dilger say, reality can't be quantified.
Ok. Then you just do not care. This does no change to reality. What is real does not depend on our opinions neighter if we care.
Define reality? I care a great deal about it but please, don't try to quantity it.
I define reality the physical things in our universe and all thoughts, which are electrical and therefore physical as well. I am aware, that our senses are already a modellation of the reality, which makes it impossible to experience all parts of it. Every single person is only able to experience a small bit of it. Definition: https://en.m.wikipedia.org/wiki/Reality I think wikipedia helps a lot to give a more objectif definition of words. Since it is a development of a bigger group of people around the world.
I've just read your bio, you claim to be interested in philosophy, so you, better than most, must know, it's impossible. Jesus🙄🫡.