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AlekseyPX
2 years ago
14

Draw a lewis structure for hccl3. Show all unshared pairs and the formal charges

Chemistry
1 answer:
klasskru [66]2 years ago
6 0

Explanation :

Lewis-dot structure : It shows the bonding between the atoms of a molecule and it also shows the unpaired electrons present in the molecule.

The given molecule is, HCCl_3

Carbon has '4' valence electrons, hydrogen has '1' valence electron and chlorine has '7' valence electrons.

Therefore, the total number of valence electrons in HCCl_3 = 1(1) + 1(4) + 3(7) = 26

According to electron-dot structure, there are 8 number of bonding electrons and 18 number of non-bonding electrons.

The electron-dot structure of HCCl_3 is shown below.

Now we have to calculate the formal charges on carbon, hydrogen and chlorine.

Formula for formal charge :

\text{Formal charge}=\text{Valence electrons}-\text{Non-bonding electrons}-\frac{\text{Bonding electrons}}{2}

\text{Formal charge on carbon}=4-0-\frac{8}{2}=0

\text{Formal charge on hydrogen}=1-0-\frac{2}{2}=0

\text{Formal charge on chlorine}=7-0-\frac{2}{2}=0

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