One brand of dental bleach is an aqueous solution containing $37\mathrm{.}0\%$ sodium perborate $(Na{H}_{2}B{O}_4)$ by mass.

Part A

What is the molarity of this solution? $($Assume a density of $1\mathrm{.}30gm{L}^{-1}.)$

Express your answer in moles per litre to three significant figures.