Question

как получить NO из KNO2 ?и потом еще из NO получить KNO3?

Answer 1

1)3KNO2 + Cr2O3 + KNO3 = 2K2CrO4 + 4NO

 Условия :400—500°C

2) NO2 + K = KNO2

Условия :при комнатной температуре

Уравняем эту реакцию с помощью электронного баланса. Для этого запишем окислитель в начальной степени окисления справа, а в конечной — слева.

NO2 = NO2−

Не забываем отмечать как лучший ответ и говорить спасибки

Answer 2

Obtaining KNO2 from KNO3

To obtain KNO2 from KNO3, you can follow the following steps:

1. Reaction with Sulfur Dioxide: KNO3 can be converted to KNO2 by reacting it with sulfur dioxide. The reaction can be represented as follows: ``` 2 KNO3 + SO2 -> 2 KNO2 + SO3 ``` This reaction involves the reduction of nitrate ions to nitrite ions by sulfur dioxide.

Obtaining KNO3 from NO

To obtain KNO3 from NO, you can use the following method:

1. Reaction with Oxygen: NO can be oxidized to NO2, and then the NO2 can be further reacted to form KNO3. The reactions can be represented as follows: ``` 2 NO + O2 -> 2 NO2 2 NO2 + 2 H2O + O2 -> 2 HNO3 HNO3 + KOH -> KNO3 + H2O ``` These reactions involve the oxidation of NO to NO2 and the subsequent formation of nitric acid (HNO3), which can then react with KOH to form KNO3.

It's important to note that these chemical processes should be conducted with proper safety measures and under the guidance of a qualified chemist or professional.