The weight of 112 ml of oxygen at STP, on liquefaction would be

22.4L of oxygen at STP weight 32g

$$\begin{gathered} 112\times {10}^{-3}\mathrm{L} \mathrm{of} {\mathrm{O}}_2 \mathrm{at} \mathrm{STP} \mathrm{weighs} 112\times {10}^{-3}\times \frac{32}{22.4} \\ =0.16\mathrm{g} \end{gathered}$$

Weight of 112 ml of O₂ at STP on liquefaction would be 0.16g.