Calculate the volume occupied by 5.0 g of acetylene gas at 50°C and 740 mm  pressure.

Wt. of  acetylene   C2H2=5.0g;mol .wt. of C2H2=(2×12)+(2×1)=26gmol−.n= wt.  mol. wt =5.0g26gmol−=526mol;P=740mm×1atm760mm=7476atmT=50+273=323K;R=0.0821LatmK−mol−;V=?PV=nRT(Ideal gas equation)∴ V=nRTP=5×0.0821×323×7674V= 5.238