A sample of  ${\mathrm{NaClO}}_3$ is converted by heat to $\mathrm{NaCl}$ with a loss of 0.16 g of oxygen. The residue is dissolved in water and precipitated as $\mathrm{AgCl}$ (molar mass of $\mathrm{AgCl}:143.5\mathrm{g}{\mathrm{mol}}^{-1}$) obtained will be