Naoh should be added to 45.0 ml of hcl to completely neutralize the acid

Well, you need to add 45.0⋅mL of your standard NaOH solution precisely

Explanation:

And first we represent the reaction by an equation:

HCl(aq)+NaOH(aq)→NaCl(aq)+H2O(l)

And thus there is 1:1 stoichiometry.

We use the relationship Molarity=Moles of soluteVolume of solution.

Hno3(aq) → h+(aq) + no3−(aq). picture ii best represents the strong acid hno3. strong acids are strong electrolytes

Ithink that the use of creativity in the sciences entails that one produce something out of nothing or from another thing. with this, i think that the he wrote down his results as four parts of the atomic theory is the manifestation of the  creativity of john dalton.