Was ist an Stickoxiden gefährlich?

Inhaltsverzeichnis:

1. Was ist an Stickoxiden gefährlich?
2. Wo kommt Salpetrige Säure vor?
3. What is the resonance structure for NO2?
4. Why is this resonance structure not possible?
5. How many Lewis structures can be drawn for NO2?
6. What is the charge of N in NO2?

Was ist an Stickoxiden gefährlich?

Was ist so schädlich an Stickoxiden und welche Gesundheitsfolgen haben sie? Stickoxide sind die Vorläufersubstanzen von Feinstaub und von Ozon. Sie sind deshalb indirekt mitverantwortlich für eine großräumige Belastung durch Feinstaub und führen, zusammen mit Kohlenwasserstoffen, zur Bildung von Ozon.

Wo kommt Salpetrige Säure vor?

Natürlich kommt Salpetersäure in freier Form nicht vor (saurer Regen). Dagegen spielen die Salze der Salpetersäure (Nitrate) eine bedeutende Rolle im Stickstoffkreislauf und als Stickstoffdünger (Salpeter). Bosch (C.), Cavendish (H.), neuartige Waldschäden, Ostwald (W.).

What is the resonance structure for NO2?

• There are two major resonance structures for NO2. You must first draw the Lewis structure for NO2. You find that you can draw two Lewis structures. However, there are two even better Lewis structures. The N atom has an unpaired electron and a positive charge.

Why is this resonance structure not possible?

• Firstly, neither of the resonance structures that you drew for your test are possible because they both violate the octet rule. For the structure on the left, the leftmost N is in control of only 6 electrons, and will not exist in this form. The structure on the right is not possible because central N is participating in 5 bonds, which N cannot do.

How many Lewis structures can be drawn for NO2?

• Explanation: You must first draw the Lewis structure for NO2. You find that you can draw two Lewis structures. However, there are two even better Lewis structures. The N atom has an unpaired electron and a positive charge. Every atom has a formal charge of zero. These are the two major resonance contributors to NO2.

What is the charge of N in NO2?

• The N atom has an unpaired electron and a positive charge. Every atom has a formal charge of zero. These are the two major resonance contributors to NO2.