This power point work describe about polar and nonn polar compounds and how to find it very easily and it also explain dipole moment and its calculation...this includes some workout problems
Organic compounds are almost 60% of all compounds. because of carbons tendency to form a compound as it has more than1 electron(4electrons) to form covallent compounds. SO a wide range of everything we eat is formed from carbon and hydrogen, which is the second important element to form organic compounds.
Polar and nonpolar bonds and polar molecules970245
polar and nonpolar bonds are explained with example and practice work is also given diplole action is explained. polar and non-polar molecules explained.
Organic compounds are almost 60% of all compounds. because of carbons tendency to form a compound as it has more than1 electron(4electrons) to form covallent compounds. SO a wide range of everything we eat is formed from carbon and hydrogen, which is the second important element to form organic compounds.
Polar and nonpolar bonds and polar molecules970245
polar and nonpolar bonds are explained with example and practice work is also given diplole action is explained. polar and non-polar molecules explained.
Palestine last event orientationfvgnh .pptxRaedMohamed3
An EFL lesson about the current events in Palestine. It is intended to be for intermediate students who wish to increase their listening skills through a short lesson in power point.
Model Attribute Check Company Auto PropertyCeline George
In Odoo, the multi-company feature allows you to manage multiple companies within a single Odoo database instance. Each company can have its own configurations while still sharing common resources such as products, customers, and suppliers.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Ethnobotany and Ethnopharmacology:
Ethnobotany in herbal drug evaluation,
Impact of Ethnobotany in traditional medicine,
New development in herbals,
Bio-prospecting tools for drug discovery,
Role of Ethnopharmacology in drug evaluation,
Reverse Pharmacology.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
The French Revolution, which began in 1789, was a period of radical social and political upheaval in France. It marked the decline of absolute monarchies, the rise of secular and democratic republics, and the eventual rise of Napoleon Bonaparte. This revolutionary period is crucial in understanding the transition from feudalism to modernity in Europe.
For more information, visit-www.vavaclasses.com
Instructions for Submissions thorugh G- Classroom.pptxJheel Barad
This presentation provides a briefing on how to upload submissions and documents in Google Classroom. It was prepared as part of an orientation for new Sainik School in-service teacher trainees. As a training officer, my goal is to ensure that you are comfortable and proficient with this essential tool for managing assignments and fostering student engagement.
Unit 8 - Information and Communication Technology (Paper I).pdfThiyagu K
This slides describes the basic concepts of ICT, basics of Email, Emerging Technology and Digital Initiatives in Education. This presentations aligns with the UGC Paper I syllabus.
The Art Pastor's Guide to Sabbath | Steve ThomasonSteve Thomason
What is the purpose of the Sabbath Law in the Torah. It is interesting to compare how the context of the law shifts from Exodus to Deuteronomy. Who gets to rest, and why?
Polar and non polar compounds and dipole moment - PPT
1. POLAR AND NON POLAR
MOLECULES
P.JEEVANANTHAM
3rd - BSc chemistry
Department of chemistry
NGM College
Pollachi.
2. What is Polar molecule?
A Polar Covalent Bond is unequal sharing of electrons between
two atoms
Polar bonds are form when there is a different between the
electronegativity values of the atoms participating in a bond
Electron density is distributed asymmetrically throughout the molecule
EXAMPLES : NH3 H2S
4. What is Non Polar molecule?
A Polar covalent is EQUAL sharing of electrons between
two atoms
Polar bonds are form when there is a similar the electronegativity
values of the atoms participating in a bond.
Electron density is distributed symmetrically within the molecule
EXAMPLE :
H2 Cl2 BF3
6. Classification of Bonds
You can determine the type of bond between two atoms by calculating
the difference in electronegativity values between the elements
The bigger the electronegativity difference the more polar the bond.
7. Practice
What type of bond is HCl ? (H = 2.1, Cl = 3.1)
Difference = 3.1 – 2.1 = 1.0
Therefore it is polar covalent bond.
Your Turn To Practice
N(3.0) and H(2.1) = 0.9 (polar)
Al(1.5) and Cl(3.0) = 1.5 (polar)
Mg(1.2) and O(3.5) = 2.3 (ionic)
H(2.1) and F(4.0) = 1.9 (polar)
H(2.1) and H(2.1) = 0 (non polar)
Ca(1.0) and Cl(3.0) = 2 (ionic)
8.
9. Summary
In a polar bond, one atom is more electronegative than the
other.
In a nonpolar bond, both atoms have similar
electronegativity's.
An asymmetric molecule with polar bonds is a polar
molecule.
An asymmetric molecule with nonpolar bonds is a
nonpolar molecule.
A symmetric molecule, regardless of the polarity of the
bonds, is always a nonpolar molecule.
10. Polar = A,B,E
Non polar = C,D
Questn 1
Example:
Identify each of the following compounds as
either a polar molecule or a nonpolar
molecule.
A. NH3
B. CHCl3
C. CO2
D. BF3
E. CO
12. The product of magnitude of negative or positive charge(q) and the
distance between the centres of the positive and negative charges is
called dipole moment.
It is usually donated by µ.
A dipole moment is a quantity that describes two opposite charges
separated by a distance
OR
If a molecule has a dipole moment,then we call it “polar”.
Dipole moment is a vector quantity i.e. it has magnitude as well as
direction.
13.
14. DRAW DIPOLE MOMENT
Dipole moment is a vector quantity and is represented by a small arrow
with tail at the positive center and head pointing towards a negative center.
For example,
the dipole moment of HCl molecule is 1.03 D and the dipole of HCl may be
represented as:
15. FORMULA
A quantitative measures of the polarity of a bond its dipole moment. μ which
is the product of the charge Q and the r is distance between the charges
Q is charge of electron = 1.60217662 × 10-19 coulombs
r is a distance
µ = Q × r
1 D = 3.335 × 10-30 C m (SI units)
17. m = 1.62 D
The individual bond dipoles do not
cancel in dichloromethane; it has
a dipole moment.
18. Greater the electronegativity difference between the bonded atom, greater if the dipole
moment.
Dipole moment of hydrogen halides are in the order :
H-F > H-Cl > H-Br > H-I
19. APPLICATION
1)In determining the polarity of bonds :
Greater is the magnitude of dipole moment,higher will be the polarity of the bond.
This is applicable to molecules containing only one polar bond.
In case of non-polar molecules like H2 , O2, N2 etc, the dipole moment is found to be zero .
This is because there is no charge separation in these molecules.
2)In determining the symmetry of the molecules
If any molecule possesses two or more polar bonds ,it will not be symmetrical if it possesses
some molecular dipole moment.
Water µ= 1.84 D
H2S µ = 0.95 D
NH3 µ=1.47 D
20. If a molecule contains a number of similar atoms linked to the central atom and the
overall dipole moment of the molecule is found to be zero ,this will imply that the
molecule is symmetrical.
For Ex: BF3 , CH4 , CCl4
4) To distinguish between cis and trans isomer
Cis isomer usually has higher dipole moment than trans isomer
5)To distinguish between Ortho, meta and para isomers
The dipole moment of para isomer is zero and that of ortho is greater than that of
meta.
21. SUMMARY
Molecular dipole depends on the geometry of the molecule
When the molecule does not possess a net dipole moment, the
molecule is nonpolar.
When the molecule possesses a net dipole moment, the molecule is
polar.