Ch.10 - Molecular Shapes & Valence Bond TheoryWorksheetSee all chapters
All Chapters
Ch.1 - Intro to General Chemistry
Ch.2 - Atoms & Elements
Ch.3 - Chemical Reactions
BONUS: Lab Techniques and Procedures
BONUS: Mathematical Operations and Functions
Ch.4 - Chemical Quantities & Aqueous Reactions
Ch.5 - Gases
Ch.6 - Thermochemistry
Ch.7 - Quantum Mechanics
Ch.8 - Periodic Properties of the Elements
Ch.9 - Bonding & Molecular Structure
Ch.10 - Molecular Shapes & Valence Bond Theory
Ch.11 - Liquids, Solids & Intermolecular Forces
Ch.12 - Solutions
Ch.13 - Chemical Kinetics
Ch.14 - Chemical Equilibrium
Ch.15 - Acid and Base Equilibrium
Ch.16 - Aqueous Equilibrium
Ch. 17 - Chemical Thermodynamics
Ch.18 - Electrochemistry
Ch.19 - Nuclear Chemistry
Ch.20 - Organic Chemistry
Ch.22 - Chemistry of the Nonmetals
Ch.23 - Transition Metals and Coordination Compounds

Solution: A. What is the value of the bond angles in SiH 4? Enter the bond angle of the molecule. B. What is the value of the smallest bond angle in CIF 4-? Enter the smallest bond angle of the molecule.C. What

Problem

A. What is the value of the bond angles in SiH 4? Enter the bond angle of the molecule. 

B. What is the value of the smallest bond angle in CIF 4-? Enter the smallest bond angle of the molecule.

C. What is the value of the bond angles in BF 3? Enter the bond angle of the molecule.

D. What is the value of the bond angle in ICl 2-? Enter the bond angle of the molecule. 


Solution

We are tasked with determining the bond angle of the given compounds. For this purpose, we shall employ the same approach that we use in identifying the molecular geometry of a compound. We will refer to the VSEPR table shown below.



We can answer this problem by answering following these key steps: 

Step 1: Determine the central atom in this molecule. 

Step 2: Calculate the total number of valence electrons present.

Step 3: Draw the Lewis structure for the molecule. 

Step 4: Determine the shape of the molecule/arrangement of all the electron pairs in a way that minimizes repulsions. 


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