# 氮氧化合物的十类计算 - PowerPoint PPT Presentation

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（一）“NO2+NO+H2O”型

A. 5:3 B. 2:3 C. 3:2 D. 3:5

3 2

X

X=

V（NO）:V（NO2）= : =2:3

（二）“NO2+NO+H2O”型

V（NO2）/V（O2）>4:1时，剩余气体为NO。

V（NO2）/V（O2）<4:1时，剩余气体为O2。

NO2、O2恰好反应

（1）当0<x≤8时 NO2完全反应

4NO2 ~ O2

4 1 y=10 – x - x=10 - x

x x

（2）当8<x<10时 NO2过量剩余NO

4NO2 ~ O2 3NO2+H2O=2HNO3+NO

4（10-x） 10-x x-4（10-x）

y=

（三）“NO+O2+H2O”型

A. a B. a C. a D. a

4NO ~ 3O2

a a

V（O2）= a+ =

4NO ~ 3O2

V（O2）=

（四）“NO+NO2+O2+H2O”型

A. 3（n-m）mL B. （m+n/3）mL

C. （n-m）/3 mL D. （4n-m）/12 mL

（五）“CO2+NO+Na2O2”型

A. 若a<b，则c<（a+b）/2 B. 若a<b，则C>（a+b）/2

C. 若a>b，则C=（a+b）/2 D. 若a=b，则c=（a+b）/2

（六）“NH3+NO2+O2+稀HNO3 （或稀H2SO4）”型

4NO2+O2+2H2O = 4HNO3

A. 28.1 B. 27.7 C. 28.8 D. 29.9

（七）隐含“2NO2=N2O4”型

（八）“NO+NO2+NaOH溶液”型

2NO2+2NaOH NaNO3+NaNO2+H2O

A. 1 mol O2和4 mol NO2

B. 1 mol NO和4 mol NO2

C. 1 mol O2和4 mol NO

D. 4 mol NO和1 mol NO2

（九）“NO2+空气”型

（十）其它类型