1.When 112l (normal conditions) of ammonia is oxidized with oxygen on a platinum catalyst with 80% product yield, nitric oxide (II) was obtained. Determine the mass of the resulting product in grams: a)60; c)90; c)120; e)180; f)200;

2. What volume (normal conditions) 98% sulfuric acid solution with a density of 1.84g/ml should I take to prepare 1044ml of 12% sulfuric acid solution with a density of 1.08g/ml:a)75ml; c)80ml; c)85ml; e)90ml; f)100ml;