Question

Another component of acid rain is nitric acid, which forms when NO2, according to the simplified equation also a pollutant, reacts with oxygen and water 4NO2 (g) + 02 (g) + 2H2O(i) → 4HNO3 (aq) The generation of the electricity used in a medium-sized home produces about 18 kg of NO2 per year. Part A Assuming that there is adequate O2 and H Express the mass to two significant figures and include the appropriate units I2O, what mass of HNO3, in kg, can form from this amount of NO2 pollutant? mValue kg Submit Previou Answer

Answer 1

solution:- reaction - UNO₂(g) + O₂(g) + 2H₂O(1 - 4 HNO₃(aq mass of NO₂ = 18 kg = 18,000 g (1000g = 1kg) NO2 in 18kg NO2 calculate No. of moles of molar mass of NO2 = 46 glmol. no, of moles of No₂ = 161000 g 46 g lmol moles of NO2 - - 391.3 According to given reaction:- I u mol NO₂ egg produce u mol of HNO3(aq) so, 391.3 mol NO₂ 19) produce ly x 391.3 mol of HNOJ = 391.3 mol of HNO₃ broduced molar mass of it NO3 = 63.01 g/mol so mass of HNO₃ produced :- no. of moles of HNO3 booduced x molar mass of it NO₂ ) 391.3 mol x 63. ol g/mol (1000g - lleg) so mass of it Noz broduced (in kg) = 25 kg (in 2 sig. I figures) 25kg of HNO3 can form from this amount of No,