Solution of \( 12 \, \text{g} \) of non-electrolyte (A) prepared by dissolving it in \( 1000 \, \text{mL} \) of water exerts then same osmotic pressure as that of \( 0.05 \, \mathrm{M} \) glucose solution at the same temperature. The empirical formula of A is \( \mathrm{CH_2O} \). The molecular mass of A is _____ \( \text{g} \). (nearest integer)
