Steps to determine polarity of a molecule 1- Draw the correct Lewis structure 2- Determine shape of the molecule and the angle 3- Determine polarity of different bonds in the molecule 4- Look at overall molecular geometry to determine polarity of the molecule Rules for determining polarity of a molecule: 1. When there are no polar bonds in a molecule, the molecule is nonpolar. Examples: a. Cl2 b. CH4

Steps to determine polarity of a molecule 1- Draw the correct Lewis structure 2- Determine shape of the molecule and the angle 3- Determine polarity of different bonds in the molecule 4- Look at overall molecular geometry to determine polarity of the molecule Rules for determining polarity of a molecule: 1. When there are no polar bonds in a molecule, the molecule is nonpolar. Examples: a. Cl2 b. CH4

Chemistry & Chemical Reactivity

10th Edition

ISBN:9781337399074

Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Publisher:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel

Chapter8: Bonding And Molecular Structure

Section: Chapter Questions

Problem 41PS: Which of the following molecules is(are) polar? For each polar molecule indicate the direction of...

See similar textbooks

Similar questions

Which statement about VSEPR theory is not correct? Select one: a. The molecular shape or geometry is determined by the positions of the lone pairs in the molecule. b. The steric number has five values from 2 to 6. c. The steric number of a central atom is the sum of the number of bonds around the atom plus the number of electrons in lone pairs pairs d. The electron-pair geometry is determined by the positions of the bonds and lone pairs in a molecule. e. In VSEPR theory, the shape or geometry of a molecule is determined by electron-electron repulsion.
1.1 Define electronegativity and explain why electronegativity increases with atomic number within a period of the Periodic Table. 1.2 Describe the type of bonding that exists in F2 (g) molecule. How does this type of bonding differ from that found in the HF (g) molecule? 1.3 Define hydrogen bonding using examples. 1.4 PH3 and NH3 moleculea are the same shape but the molecules are non-polar and polar respectively. Explain why this is so. 1.5 Give an example of molecule that has a coordinate covalent bond. 1.6 Draw a Lewis structure for each of the following molecules of ions: a) HF3 b) CIO3-
A. Fluoromethane B. Methanol C. Chloromethane D. Water 1. Which molecule has the highest dipole moment? 2. Which molecule has the greatest bond angle relative to the electronegative atom? 3. Which molecule has the most optimal bond angle? 4. Which molecule is the most polar? 5. Which molecule contains the most electronegative atom?
Determine whether each molecule is polar or nonpolar: CF4, CH4, NH3. EN values: C: 2.6; H: 2.2; F: 4.0; N: 3.0.Start with Lewis structure then draw the shape of the molecule →determine the polarity of the bond(s) →provide the orientation of the dipoles to determine polarity of the molecule
You come across a bottle in the stock room labeled CHCl3 a.Draw the Lewis dot structure of the molecule b.Identify the molecular geometry of the molecule c.dentify if the molecule is polar or non-polar. d.Do you expect this molecule to interact more with water (H2O) or methane (CH4)?Explain why.
Determine whether each molecule is polar or nonpolar: CF4, CH4, NH3. EN values: C: 2.6; H: 2.2; F: 4.0; N: 3.0.Start with Lewis structure then draw the shape of the molecule →determine the polarity of the bond(s) →provide the orientation of the dipoles to determine polarity of the molecule the only one need is EN
Define the difference between a polar and non-polar covalent bond. How do you determine if a molecule is polar or non-polar? Explain how a lone pair affects the bond angles of a substance
For the following molecules, NF3 a. Give the total number of valence electrons in the moleculeb. Draw the lewis structurec. Name the molecule using the proper naming system for covalent molecules.d. Identify the electron geometry and the molecular geometry (shape)e. Give the electronic configurations for carbon, chlorine and fluorine. Identify anysimilarities.f. Find another molecule that has the same molecular geometry (the shape) as NF3
1) What is the type of molecule? a. AX2E3 b. AX3E2 c. AX5 d. AX2E2 2) What is the molecular geometry of GL2-? a. Linear b. Trigonal Bypyramidal c. Bent or v-shaped d. Seesaw 3) What is the approx bond angle formed by L-G-L bond if the correct molecular geometry is followed? a. 180° b. 120° c. 109.5° d. 90° 4) Considering that L is more electronegative than G, and the en difference is 0.2, is the molecular polar? 5) What is the formal charge of G? 6) What is the formal charge of the labeled atom? (refer to the blue arrow)
1) Why is it important to understand the molecular geometry or shape of molecules and ions in chemistry? H2Se CCl4 CH2Cl2 HCN NH3Cl+ NH2- CH3COCH3 CH3COOH 2) Among the eight molecules and ions studied in this experiment, (a) which molecule(s) or ion(s) are polar, and which ones are non-polar? (b) What is the difference between polar and non-polar molecules or ions? (c) What two factors dictate the polarity of the molecule or ion?
Have each member of your group select one of the molecules shown below and complete steps a–d. Each member should then present his or her results to the rest of the group, explaining the reasoning used to determine the answers. CS2 NCl3 CF4 CH2F2a. Draw the Lewis dot structure.b. Determine the molecular geometry and draw it accurately.c. Indicate the polarity of any polar bonds within the structure.d. Classify the molecule as polar or nonpolar.
A. What is the electron-pair geometry for C in CCl4? _______There are _____ lone pair(s) around the central atom, so the geometry of CCl4 is _________.B. What is the electron-pair geometry for P in POCl3? ________There are ______ lone pair(s) around the central atom, so the geometry of POCl3 is ________.