Calculate the concentration of NaOH solution in g/mL, which has the same normality as that of a solution of `HCl` of concentration 0.04 g/mL.

Explanation

Equivalents of HCl/mL`=(0.04)/(36.5)` (eq.wt. of HCl`=36.5`)
`=0.001095` eq.
`:.` normality of HCl = eq. of `HCl//100mL=1.095N`
`:.` normality of NaOH `=1.095N`
`:.g//1000mL` of `NaOH` =normality `xx` eq.wt
(eq.wt of NaOH `=40`)
`=1.095xx40=43.8`
`:.` concentration of NaOH solution in g/mL `=0.0438g//mL`