# How to calculate formal charge in Nitrite Ion?

• Indranil
In summary, the chemical formula for Nitrite Ion is NO2-, formal charge in chemistry is a way to determine the distribution of electrons in a molecule or ion, and to calculate formal charge in Nitrite Ion, you need to follow certain steps. The formal charge of Nitrite Ion is -1 and it is important to calculate it in order to determine the most stable Lewis structure and understand the distribution of electrons and overall charge, which can help predict reactivity and chemical properties.
Indranil
1. The problem statement, all variables, and given/known data
How to calculate formal charge in Nitrite Ion

## Homework Equations

How to calculate formal charge in Nitrite Ion

## The Attempt at a Solution

I have counted the total violence electrons 5 + 6 (2) + 1 = 18

#### Attachments

• NO2.jpg
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Hmm... interesting concept..."violence electrons". Wonder what the pacifist electrons think?

mjc123 said:
Hmm... interesting concept..."violence electrons". Wonder what the pacifist electrons think?
Sorry it should be ''Valence electrons''

## 1. What is the chemical formula for Nitrite Ion?

The chemical formula for Nitrite Ion is NO2-

## 2. What is formal charge in chemistry?

Formal charge is a way to determine the distribution of electrons in a molecule or ion. It is calculated by comparing the number of valence electrons in an atom with the number of electrons it is currently bonded to.

## 3. How do you calculate formal charge in Nitrite Ion?

To calculate the formal charge in Nitrite Ion, you need to follow these steps:

1. Count the total number of valence electrons in the Nitrite Ion (5 for Nitrogen and 12 for Oxygen, since there are 2 Oxygen atoms).
2. Identify the atoms with lone pairs of electrons (in this case, both Oxygen atoms have lone pairs).
3. Allocate the electrons in each bond to the more electronegative atom (Oxygen).
4. Calculate the formal charge for each atom using the formula: Formal charge = (number of valence electrons) - (number of lone pair electrons) - (number of bonds).
5. Add up the formal charges for all atoms in the molecule to get the overall formal charge for Nitrite Ion.

## 4. What is the formal charge of Nitrite Ion?

The formal charge of Nitrite Ion is -1.

## 5. Why is it important to calculate formal charge in Nitrite Ion?

Calculating the formal charge in Nitrite Ion allows us to determine the most stable Lewis structure for the molecule. It also helps us understand the distribution of electrons and the overall charge of the ion, which is important in predicting its reactivity and chemical properties.

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