Question

When the Lewis structure for HCOOCH3 (methyl methanoate) is drawn, how many bonding domains and how many non-bonding domains (lone pairs of electrons) are present?

Answer 1

Answer :  There are 16 number of bonding electrons and 8 number of non-bonding electrons or lone pairs of electrons.

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.

In the Lewis-dot structure the valance electrons are shown by 'dot'.

The given molecule is, $HCOOCH_3$

As we know that carbon has '4' valence electrons, hydrogen has '1' valence electron and oxygen has '6' valence electrons.

Therefore, the total number of valence electrons in $HCOOCH_3$ = 2(4) + 4(1) + 2(6) = 24

According to Lewis-dot structure, there are 16 number of bonding electrons and 8 number of non-bonding electrons or lone pairs of electrons.

Answer 2

In the Lewis structure of methyl methanoate, there are seven bonding domains and four non bonding domains present in the molecule.

A Lewis structure shows the symbol of elements as well as the number of electrons that surround each element. The Lewis structure of a compound shows the symbol of each element in the compound and the shared and unshared electrons present on each atom.

In the Lewis structure of methyl methanoate, there are seven bonding domains and four non bonding domains present in the molecule.

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