[Chondrally (OP)]

A Mol of water, H2O is 18 ml by definition.
The old Avogadros number is approximately 6.023x10^23 particles/Mol
18ml/6.023x10^23(particles/mol)= 2.98854x10^(-23) ml per water molecule
Is this consistent with the average volume of a water molecule and not in Ice but liquid water
particle physics at Cern in France and Switzerland have estimates of the smallest volume that can actually be measured and at the lowest levels this number is quite blurry due to the uncertainty principle.  what is the smallest length that can be measured with any accuracy, and i am talking about in spacetime,  not in light.
What would the new avogadros number be? 
It seems to me that 10^(-23) ml actually does not exist, and is way too small to even be measured.  Sources i have checked at Cern in the past suggest about between 10^(-7) to 10^(-9)  ml would be at the limit of reality.  Is this true?  And this throws a lot of uncertainty on the new avogadros number and it might only be known with 50% error.

[Kryptid]

Don't repost topics. You already speak about this here: https://www.thenakedscientists.com/forum/index.php?topic=79483.0

Sources i have checked at Cern in the past suggest about between 10^(-7) to 10^(-9)  ml would be at the limit of reality.  Is this true?

No. I explained why in your other topic.

[Bored chemist]

Sources i have checked at Cern in the past suggest about between 10^(-7) to 10^(-9)  ml would be at the limit of reality.  Is this true? 

What a remarkably ill informed idea.

10^-9 ml is really quite big.
1 ml is pretty close to 1 cubic centimetre.
So 10^-9 ml is  a cube about 1/1000 of a cm on each side.
that's 10 microns on each side
About the size of a white blood cell.

Or big enough to hold something like half a million coronaviruses.

 

And this throws a lot of uncertainty on the new avogadros number and it might only be known with 50% error.

The error margin on the value of Avogadro's number is exactly zero.
It is correct by definition.
I already explained this to you.

[Bored chemist]

A Mol of water, H2O is 18 ml by definition.

No it isn't
A mole of water is N_A (  exactly 6.02214076×10²³) molecules of water by definition.