Chemistry - Redox Reactions Question with Solution | TestHub

A solution of ${\mathrm{Na}}_2{\mathrm{S}}_2{\mathrm{O}}_3$ is standardized iodometrically against 0.167 g of ${\mathrm{KBrO}}_3$ where ${\mathrm{BrO}}_3{}^{-}$ changes to ${\mathrm{Br}}^{-}$. This process requires 45 mL of the ${\mathrm{Na}}_2{\mathrm{S}}_2{\mathrm{O}}_3$ solution. What is the strength of the ${\mathrm{Na}}_2{\mathrm{S}}_2{\mathrm{O}}_3$ ? [Mw. of ${\mathbf{KBrO}}_3=167]$