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Define intramolecular forces and contrast these with intermolecular forces (make sure you provide examples). stream As a result, the dispersion forces are considerably stronger in I. IMF Worksheet. Covalent bond strength: 50-200 kJ/mole Intermolecular force: 1-12 kJ/mole . A dipole is the result of unequal sharing of electrons in a molecule resulting in the creation of partial charges within the molecule. We will consider the following types of intermolecular forces: London dispersion, dipole-dipole, and hydrogen bonding.London dispersion forces and dipole-dipole forces are collectively known as van der Waals forces.Molecules can have any mix of these three kinds of intermolecular forces, but all substances at least have London dispersion forces. How do intermolecular forces affect these properties (i.e., as intermolecular forces increase, what happens to … Iago Daumas. PDF. or. What is the strongest intermolecular force present for each of the following molecules? Rank the following in order of increasing strength of intermolecular forces in the pure substances, and indicate which ones are most likely to exist as gases at 25 C and 1atm: KI, Ne, CH4, CO, … Complete each of the sentences with the appropriate word or words. • Intermolecular Force (IMF): between molecules. 6. The state (solid, liquid or gas) of a … (4b) o Indicate the type of molecules involved (polar or non-polar) o Indicate the relative strength of each o Give an example of a molecule that experiences each type (from the video). Liquids and Intermolecular Forces Topics Changes of State Energy Changes Attractive Forces (dipole-dipole, induced dipole, hydrogen bonding) Liquid State Liquid-Vapor Equilibrium (equilibrium, vapor pressure, boiling pt.) 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For each of the statements, indicate if it describes London Forces (LF) , Dipole Forces (DD) or Hydrogen Bonding (HB) _____ occurs in all molecules _____ is the strongest force _____ occurs in polar molecules With stronger intermolecular forces or lower kinetic energy, those forces may draw molecules closer together, resulting in a condensed phase. intermolecular forces. Explain why much more energy is released for the formation of the magnesium oxide lattice compared to sodium chloride. b. CO Dipole-dipole forces The C … 3 _____ b)H. 2 CO _____ c)HF _____ 2)Explain how dipole-dipole forces cause molecules to be attracted to one another. Stronger intermolecular forces between molecules make it more difficult for those molecules to be pulled apart. The stronger the intermolecular forces in a liquid, the _____ boiling point. These are the strongest of the intermolecular forces. a)PF. Dipole-dipole forces . yuM�*�SWx�ж�|��H��~{O��G�;��"j�^ʜv�\, Materials and Equipment . Rank the following in order of increasing strength of intermolecular forces in the pure substances, and indicate which ones are most likely to exist as gases at 25 C and 1atm: KI, Ne, CH4, CO, … Download Free PDF. ��1i��$� և2�:#�l�U�; V�,= 2I�a#ƙ):�GGgAEF��L�^E� aDI-#c��d1B�G=B-÷y]M�q�(�aR蘥��J ��D��-b��Hx9�\�0U�P��l(v��] ВhF,3�g=�3ѐ��@��Ay��wǒ�-d1 [ɰ��=��Mt?|��ǋ�g�jrD��>�&0r�y? Download PDF Package. Liquids and Intermolecular Forces Topics Changes of State Energy Changes Attractive Forces (dipole-dipole, induced dipole, hydrogen bonding) Liquid State Liquid-Vapor Equilibrium (equilibrium, vapor pressure, boiling pt.) 12.1 Intermolecular Forces •Intermolecular forces are the attractive forces holding particles together in the condensed (liquid and solid) phases of matter •Result from coulombic attractions –Dependent on the magnitude of the charge –Dependent on distance between charges •Weaker than forces of ionic bonding •Involve partial charges Phone 928-773-8100. Footer Link One | Footer Link Two | Footer Link Three | Site Map. �t�+b��N�x��8n�j�D�y��~ �� PK ! �� N _rels/.rels �(� ��JA��a�}7� The stronger the intermolecular forces in a liquid, the _____ boiling point. You may find it useful to draw Lewis structures to find your answer. 2. molecule occupy a larger volume and are more polarizable compared to the electrons in the F. 2. molecule. The forces that hold molecules together in the liquid and solid states are called intermolecular forces. A) 10 mL of water at 298 KB)50 mL of water at 293 K … Intermolecular forces (IMF) can be ranked qualitatively using Coulomb’s Law: Worksheet – Intermolecular Forces Chemical bonds are intramolecular forces, which hold atoms together as molecules. These are the strongest of the intermolecular forces. �b�~ �0 word/document.xml�Z�o�6��S$q��ij�.�#[1�i�)��L�IY��;��Y�xG��G~��-�hJ�fR��Q�� 2db��~{p m�1��>�P�,�� !to Examples of intermolecular forces are London dispersion forces (LDF), dipole-dipole forces (DDF), and hydrogen bridging forces (HBF). Worksheet on Intermolecular Forces 1 Intermolecular_force_worksheet.odt. PK ! Intermolecular forces and how they affect physical properties of compounds . Ionic bonds result when one or more electrons from one … Free PDF. �2�W��=Dz�m%ܶ��l�9�o[�M�6��ЙI�l�]��~��v/@��d&�@�B��P�w��I�A,CB��*FŇ�E��孞��/~2��woC�)� Intermolecular Forces Review: Chemical compounds are combinations of atoms held together by chemical bonds or intra-molecular forces. f��ˉ�ao�.b*lI�r�j)�,l0�%��b� Research and explain a quantitative Therefore, stronger intermolecular forces result in higher boiling points. 14. Chemistry 20: Intermolecular Forces Worksheet 1. Larger molecules are more polarizable than smaller molecules since Based on the types of bonds formed, compare sodium chloride’s lattice energy of -787 kJ/mol with magnesium oxide’s lattice energy of -3916 kJ/mol. CC� %�B��~-�Z�ژٱ�B��7�:�L��W��S %��L��T��b6��ϑ�Z2�TB��C�9aYO5�Hfj {n~H��]m&S8��)��l��?U�8?��mhAO��{�D|��^��v�|��kxc�k��3q��r@�dt�ӦH�$+��f�r�tC�ʷ��oDh�z��U��y\ !d� ?U� 2. compared to F. 2. 2. Research and explain a quantitative Most substances can exist in either the gas, liquid or solid phase under suitable conditions of temperature and pressure. The different types of intermolecular attractions are: dispersion (London) forces, dipole-induced dipole interactions, ion-induced dipole interactions, dipole-dipole interactions, and hydrogen bonding. 6�i��D�_��, � ��|u�Z^t٢yǯ;!Y,}{�C��/h> �� PK ! �3a � word/_rels/document.xml.rels �(� ��N�0��H�C�;uR� T��+�p�͏H�Ȼ��YZ%M�2w,�|��|um�k�H��hL��k�tu/"$m PDF. NAME:_____ SECTION:_____ INTERMOLECULAR FORCES WORKSHEET ION-ION INTERACTIONS AND LATTICE ENERGY 1. �ZJ�b�^^��ė�nz��Š5Q� %�5t��'�u�&]%{�� AP Chemistry: Intermolecular Forces, Liquids, and Solids Lecture Outline 11.1 A Molecular Comparison of Liquids and Solids Physical properties of liquids and solids are due to intermolecular forces. In general, which attractions are stronger: intermolecular or intramolecular? PDF. Intermolecular Forces • List the substances BaCl 2, H 2, CO, HF, and Ne in order of increasing boiling points. Recall what a dipole means. The polar molecule induces a temporary dipole in the nonpolar molecule. Liquid-Solid Equilibrium (Freezing pt.) 2. molecule occupy a larger volume and are more polarizable compared to the electrons in the F. 2. molecule. They do not occur in ionic substances. Define surface tension and viscosity. Intermolecular Forces Worksheet Name _____ Period _____ 1. Electrostatics and Moments of Fixed Charge Distributions Chemical bonds (e.g., covalent bonding) are intramolecular forces which … Intermolecular Forces Worksheet.pdf, 52.12 KB; (Last Modified on November 2, 2015) Address 400 W Elm Ave, Flagstaff, AZ 86001. Do the problems on your own BEFORE looking at the answers. g. CH 3-O-CH 3 Dipole-dipole forces %PDF-1.3 The polar molecule induces a temporary dipole in the nonpolar molecule. 2. is solid because the electrons in the I. These chemical bonds are of two basic types – ionic and covalent. For each student or group: ♦ Data collection system Worksheet on Intermolecular Forces 1 Intermolecular_force_worksheet.odt. How are boiling points affected by intermolecular forces? They are responsible for many of the physical properties of substances, including their melting and boiling points. 4 0 obj _7!~��a�Fy�� PK ! A … 1)Using your knowledge of molecular structure, identify the main intermolecular force in the following compounds. Intermolecular Forces But these weak interactions control many critical properties: boiling and melting points, For each of the statements, indicate if it describes London Forces (LF) , Dipole Forces (DD) or Hydrogen Bonding (HB) _____ occurs in all molecules _____ is the strongest force _____ occurs in polar molecules 1) hydrogen (H 2) London dispersion forces 2) carbon monoxide (CO) London dispersion forces 3) silicon tetrafluoride (SiF 4) London dispersion forces 4) nitrogen tribromide (NBr 3) dipole-dipole forces 5) water (H 2 O) hydrogen bonding 6) acetone (CH 2 are nonpolar, so the only intermolecular attractive forces are London dispersion forces. I. 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