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Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074

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BuyFindarrow_forward

Chemistry & Chemical Reactivity

10th Edition
John C. Kotz + 3 others
ISBN: 9781337399074
Textbook Problem

Draw the electron dot structure for the sulfite ion, SO32−. In aqueous solution, the ion interacts with H+. Predict whether a H+ ion will attach to the S atom or the O atom of SO32−.

Interpretation Introduction

Interpretation: The electron dot structure for SO32- has to be drawn and also predict whether a H+ will attach to the SorO atom of SO32-

Concept Introduction:

Electron-dot structure: It is a diagram in which dots are placed around the chemical symbol of an element to show its valence electrons. It is also called as lewis dot diagrams.

Formal charge: It is the electrostatic charge that would reside on an atom in a molecule or polyatomic ion if all bonding electron are shared equally between pairs of atoms.

Formal charge of an atom can be determined by the given formula.

Formalcharge(FC)=(no.ofvalenceelectroninatom)12(no.ofbondingelectrons)(no.ofnon-bondingelectrons)

Explanation

Given the compound is SO32-

The total number of valence electrons is found to be 24+2=26

The 20 electrons getting after reducing two electrons for each bond from the total valence electron are distributed on atoms to complete the octet.

Thus the electron dot structure of the compound is given below:

It is possible to predict whether a H+ will attach to the SorO atom of SO32- by calculating the formal charge for sulphur and oxygen.

Formalcharge(FC)=(no.ofvalenceelectroninatom)12(no.ofbondingelectrons)(no

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