The shape around each central atom in H 3 PO 4 molecule is to be determined. Also, the deviation from the ideal angle is to be explained. Concept introduction: The following steps are used to determine the molecular shape of the given molecule. Step 1: Write the Lewis structure of the given formula and place the atoms. Step 2: Count all electron groups including bonding and non-bonding pairs around the central atom and use it to assign one of the five electron-group arrangement. Step 3: Write the ideal bond angle related to the electron-group arrangement and the effect of any deviation can be predicted by using VSEPR. Step 4: Count the bonding and non-bonding electron groups and draw the molecular shape accordingly.

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Chapter 10, Problem 10.43P

(a)

Interpretation Introduction

Interpretation:

The shape around each central atom in H3PO4 molecule is to be determined. Also, the deviation from the ideal angle is to be explained.

Concept introduction:

The following steps are used to determine the molecular shape of the given molecule.

Step 1: Write the Lewis structure of the given formula and place the atoms.

Step 2: Count all electron groups including bonding and non-bonding pairs around the central atom and use it to assign one of the five electron-group arrangement.

Step 3: Write the ideal bond angle related to the electron-group arrangement and the effect of any deviation can be predicted by using VSEPR.

Step 4: Count the bonding and non-bonding electron groups and draw the molecular shape accordingly.

(b)

Interpretation Introduction

Interpretation:

The shape around each central atom in a CH3OCH2CH3 molecule is to be determined. Also, a deviation from the ideal bond angle is to be explained.

Concept introduction:

The following steps are used to determine the molecular shape of the given molecule.

Step 1: Write the Lewis structure of the given formula and place the atoms.

Step 2: Count all electron groups including bonding and non-bonding pairs around the central atom and use it to assign one of the five electron-group arrangement.

Step 3: Write the ideal bond angle related to the electron-group arrangement and the effect of any deviation can be predicted by using VSEPR.

Step 4: Count the bonding and non-bonding electron groups and draw the molecular shape accordingly.

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