What we are give: Concentration of base (CB) = 3.4 ×

Then convert all volume in ml to L.
Volume of base (VB) 25.0ml = 0.025L
Volume of acid (VA) 16.6ml = 0.0166L
Now that we have everything we use the formula CAVA=CBVB.
Make 'CA' the subject then solve.
CA=
Freezing something makes it solid and melting something makes it a liquid
Hmmmm that’s a question you just have to take the time to think about the more you think about it the more u will get it u can take as much time as u need
Answer:-
atoms of Cu are equals to 4.45 moles.
Solution:- It is a atoms to moles unit conversion for which we divide the given number of atoms by Avogadro number.

We have been given with
atoms and asked to convert them to moles.
The set up for this unit conversion problem would be as:

= 4.45 moles
So, there would be 4.45 moles of Cu in
atoms of Cu.