In a clinical lab,a sample of urine containing 0.120 g of urea NH2CONH2 (mol. wt 60) was treated with excess of nitrous acid.The urea reacted according to the following equation.
NH2CONH2 + 2HNO2 = CO2 + 2N2 + 3H2O
The gas formed was passed through aqueous sodium hydroxide and final volume is measured at STP.What was this volume?