Question

高一化学：将一充满NO和NO2混合气体的50ml的试管倒立于水中,充分反应后剩余体积为30ml.求,（1）原混合气体中N

Answer 1

3NO2 + H2O = 2HNO3 + NO

3 1

设原混合气体中NO为xml NO2为y ml

x+y=50

x/3 + y=30

x=30ml

y=20ml

4NO + 3O2 + 2H2O = 4HNO3

4 3

30 Z

Z=22.5ml