**1. CH₄** a. Lewis structure b. Drawing of shape (label angles) c. Name of shape ______________________ d. Polar or nonpolar? ____________________ e. Hybridization _________________________**2. NH₃** a. Lewis structure b. Drawing of shape (label angles) c. Name of shape ______________________ d. Polar or nonpolar? ____________________ e. Hybridization _________________________**Explanation**This document outlines a series of tasks for analyzing the molecular structure of methane (CH₄) and ammonia (NH₃). For each molecule, the tasks include identifying the Lewis structure, creating a drawing of the molecular shape with labeled bond angles, naming the molecular shape, determining if the molecule is polar or nonpolar, and specifying the type of hybridization of the central atom.

Answered: a. Lewis structure b. Drawing of shape…

Introduction to Chemical Engineering Thermodynamics

8th Edition

ISBN:9781259696527

Author:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Publisher:J.M. Smith Termodinamica en ingenieria quimica, Hendrick C Van Ness, Michael Abbott, Mark Swihart

Chapter1: Introduction

Section: Chapter Questions

Problem 1.1P

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Question

**1. CH₄**

a. Lewis structure

b. Drawing of shape (label angles)

c. Name of shape ______________________

d. Polar or nonpolar? ____________________

e. Hybridization _________________________

**2. NH₃**

a. Lewis structure

b. Drawing of shape (label angles)

c. Name of shape ______________________

d. Polar or nonpolar? ____________________

e. Hybridization _________________________

**Explanation**

This document outlines a series of tasks for analyzing the molecular structure of methane (CH₄) and ammonia (NH₃). For each molecule, the tasks include identifying the Lewis structure, creating a drawing of the molecular shape with labeled bond angles, naming the molecular shape, determining if the molecule is polar or nonpolar, and specifying the type of hybridization of the central atom.

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Answer

CH₄- It is called methane. It is made up of 1 atom of carbon and 4 atoms of hydrogen. It is group 14 hydride and the alkane and is the main constituent of natural gas.

(A) Lewis Structure - It is the diagram which shows bonding between atoms and lone pairs of the electron within the molecule.

(B) Drawing of shape

The shape of the CH₄ molecule is tetrahedral because it has 4 pairs of lone pairs. The Bond angle between H-C-H is 109.5 degrees.

(C) The name of the shape is tetrahedral because it has 4 pairs of lone pairs.

(D) All the outer atoms are the same, and the dipole moments are in the same direction that is in the direction of carbon atom therefore overall molecule becomes non-polar. CH₄ is Non-Polar.

(E) Hybridisation of CH₄molecule is sp³.

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