What is the ionic formula for sodium hydroxide?
NaOH and H2O form a solution of Na+(aq) and OH-(aq) ions
(the solvent water, aq, is written as subscripted (aq) )
To make 1 Normal solution you need to know the equivalent of
NaOH, which is calculated by dividing Molecular weight by 1, that
is 40 divided by 1= 40.
So the equivalent weight of NaOH is 40. To make 1 N solution,
dissolve 40.00 g of sodium hydroxide in water to make volume of 1
liter.