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Answer: Determine the number of electron groups around the central atom for each

Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro ISBN: 9780321910295 34

Solution for problem 61P Chapter 10

Introductory Chemistry | 5th Edition

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Introductory Chemistry | 5th Edition | ISBN: 9780321910295 | Authors: Nivaldo J Tro

Introductory Chemistry | 5th Edition

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Problem 61P

PROBLEM 61P

Determine the number of electron groups around the central atom for each molecule.

(a) OF2

(b) NF3

(c) CS2

(d) CH4

Step-by-Step Solution:
Step 1 of 3

Solution 61P

The number of electron groups around the central atom for each molecule.

(a) OF2

All have 4 electron groups, all have sp3 hybrid orbitals, and tetrahedral ORBITAL geometry.

OF2: 2 bonded pairs, 2 unshared pairs. bent molecular geometry

(b) NF3

NF3: 3 bonded pairs, 1 unshared pair. pyramidal molecular geometry

(c) CS2

Explanation:

The best place to start when trying to figure out a molecule's geometry is its Lewis structure.

Carbon disulfide, CS2, will have a total of 16 valence electrons, 4 from the carbon atom and 6 from each of the two sulfur atoms.

The central carbon atom will form double bonds with the two sulfur atoms. These bonds will account for 8 of the 16 valence electrons of the molecule.

The remaining 8 valence electrons will be placed as lone pairs, two on each sulfur atom.

Now, molecular geometry is determined by the hybridization of the central atom. In this case, the carbon atom is surrounded by two regions of electron density, one for each double bond it forms with the sulfur atoms.

This means that its steric number will be equal to 2. The carbon atom will thus be sp hybridized. It will use one s and one p orbitals to form the hybrids, and the remaining p-orbitals to form pi bonds with the two sulfur atoms.

The molecular geometry will thus be linear, the basic AX2 model.

(d) CH4

CH4: 4 bonded pairs. tetrahedral molecular geometry

Step 2 of 3

Chapter 10, Problem 61P is Solved
Step 3 of 3

Textbook: Introductory Chemistry
Edition: 5
Author: Nivaldo J Tro
ISBN: 9780321910295

Since the solution to 61P from 10 chapter was answered, more than 376 students have viewed the full step-by-step answer. The answer to “Determine the number of electron groups around the central atom for each molecule.(a) OF2(b) NF3(c) CS2(d) CH4” is broken down into a number of easy to follow steps, and 17 words. The full step-by-step solution to problem: 61P from chapter: 10 was answered by , our top Chemistry solution expert on 05/06/17, 06:45PM. This textbook survival guide was created for the textbook: Introductory Chemistry, edition: 5. Introductory Chemistry was written by and is associated to the ISBN: 9780321910295. This full solution covers the following key subjects: around, atom, central, determine, electron. This expansive textbook survival guide covers 19 chapters, and 2046 solutions.

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Answer: Determine the number of electron groups around the central atom for each