In a clinical laboratory a sample of urine containing 0 18 g

Last updated: 7/4/2023

In a clinical laboratory a sample of urine containing 0 18 g of urea NH CONH2 was treated with an excess of nitrous acid The reaction of urea with nitrous acid is as follows NH CONH2 2HNO2 CO2 2N2 3H O The gases formed were passed through an aqueous sodium hydroxide solution and the final volume after passing through aqueous sodium hydroxide was measured at STP What is the mass of the measured volume of the gas A 0 120 g B 0 168 g