Describe the types of intermolecular forces possible between atoms or molecules in condensed phases (dispersion forces, dipole-dipole attractions, and hydrogen bonding) ... the larger … This evaporation is an endothermic process that results in a temperature decrease. The preview shows you one of the 4 different macroscopic properties that are analyzed in this lab. Graph are held together by varying strengths of attraction. ... Once a substance gains a certain amount of kinetic energy to overcome the molecules intermolecular attraction forces (hydrogen bonds, dipole-dipole forces, dispersion forces) the substance will escape into the gas phase, thus vaporizing. The van der Waals forces encompass intermolecular forces as well as some intramolecular forces including Keesom interaction, the Debye force, and the London dispersion force. 4. �o�?������&��M8��;܅o^)��/a��y�Z�m�XY~��m�?��f�������nBSj����s�����Bn~�pn��p��� ��m[%� _����ˠ�6߾�  Intermolecular forces – design lab Research question: To calculate the solubility of equal masses nitrates of four di-positive ions (Lead Nitrate, Barium Nitrate, Copper Nitrate & Ferrous Nitrate of 0.5 M concentration) in an equal volume of water and relate this to the ionic radius of the element and the molar mass of the nitrate chosen and hence comment on the intermolecular forces … %��������� Email address * Your email. The boiling temperatures of methanol, ethanol, 1-propanol, and 1-butanol are 65¡C, 78¡C, 97¡C, and 117¡C, respectively. The force of attraction, based on Coulomb’s Law (F=k*q1*q2/r^2), will be the independent variable and the melting time would be the dependent variable. The temperature where the substance becomes liquid and where it becomes solid. Using the data you obtained in lab, answer the below questions. ‘ln this relate the tem er m 11 Y temperature changes caused by the evaporation of several liquids and p a re cl‘lanr‘ées to the strength of intermolecular forces of attraction. Only alter the intermolecular forces variable. This content is neither created nor endorsed by Google. And despite having variable force strengths, all intermolecular forces are considered weak compared to chemical bonds, or intramolecular forces. b. These forces determine if a substance is a solid, liquid or gas at room temperature. If the intramolecular force is greater, it will take a long time for the substance to melt. Materials and Equipment The formula for octanol is given below. The temperature where the substance becomes liquid and where it becomes solid. For the virtual lab, record in a Procedure to determine: The effect of varying intermolecular forces. If you have only one Temperature Probe per interface, this experiment can still be completed in one class period. Explain your answer to the above question. HINT: OCTANOL IS THE GREY CURVE. Using the data you obtained in lab, answer the below questions. Introduction: The polarity of molecules give rise to the forces that act between them. The attractions between molecules are called intermolecular forces. These forces influence the properties of the substance, causing substances with strong forces BETWEEN molecules to be solids at room temperature and substances with weak forces BETWEEN molecules to be gases. Hydrogen Bonds: A Special Type of Attraction Explore how polar molecules interact via hydrogen … x�]ߓ�6r~�_����V��ß�I�|��D�ع�7��9�֖�,��v/��>_w�k��Õ7v�v@�Fw��? I developed this lab to show this. There are 4 popular types of intermolecular force: London dispersion, Dipole-Dipole, Hydrogen Bonds, and Ion-Dipole. like viscosity and experiment! Other properties of matter such as boiling point, Email address * Your email. c. If you have two substances with molecules that are similar size and shape, but A experiences London dispersion forces and B experiences dipole-dipole attraction, which one would you expect to have a … Activity C: Intermolecular forces Get the Gizmo ready: Select the INTERMOLECULAR FORCES tab. Two liquids, an alkane and an alcohol, have similar molecular weights but significantly different ΔT values. Intramolecular forces are responsible for many macroscopic properties such as electrical conductivity, hardness, and luster. Never submit passwords through Google Forms. TEACHING MODULE: Aerobic & Anaerobic Respiration, and Fermentation.. We also curated a PROBLEM SET that can be be used for class ASSESSMENT. Physical properties of compounds vary significantly based upon the type of intermolecular force of attraction between molecules. Discussion Figure 1: Intermolecular Forces (IMF) Intramolecular Forces and Intermolecular Forces Intramolecular forces are the attractive forces forming ionic compounds (ionic bonds - gain and lose electrons to complete octets) or molecular compounds (covalent bonds - share electrons to complete octets). Exploring Intermolecular Forces Lab Background: Intramolecular forces are forces acting on atoms within ionic crystals or molecules. Dipole Dipole. Intermolecular Forces Acting on Water Water is a polar molecule, with two +δ hydrogen atoms that are covalently attached to a -δ oxygen atom. In this type of interaction, a non-polar molecule is polarized by an … intermolecular forces evaporation and intermolecular attractions hypothesis: the two types of alkanes (pentane and hexane) will evaporate faster than the two. Intramolecular forces are responsible for many macroscopic properties such as electrical conductivity, hardness, and luster. For example water, H2O, is a liquid at room temperature because of the strong hydrogen bonds between the … London forces increase with increasin… For the virtual lab, record in a Procedure to determine: The effect of varying intermolecular forces. INTERMOLECULAR FORCES OF ATTRACTION Bautista, LaureenKate Capistrano, Amiel Espiel, Kyle Nicolas, Ezber 2. Intermolecular forces of attraction (lab report) 1. Make a data table and graph in excel for the effect of intermolecular forces on pressure. GCC CHM 151LL: Intermolecular and Ionic Forces ©GCC, 2013 page 4 of 12 Intermolecular and Ionic Forces Compar ing IMF Using Percent Evaporation: This lab will explore changing masses during evaporation of organic liquids. Intermolecular Forces of Attraction LAB. The different types of intermolecular attractions are: dispersion (London) forces, dipole-induced dipole interactions, ion-induced dipole interactions, dipole-dipole interactions, and hydrogen bonding. Ion Induced Dipole Interactions. Sign in Register; Hide. 7B��B���=ty��zJ��j-\T6X�T��a�G���B��qX�E�T�eUA5)"��x�w�vH 5ޗ��,�XY�^�^���#�Ϲf�%��%�����'��cQ/� ���x.&��_���ܵ�96f����U���܁���A����E�y���f����y��r'���Xƥ}lpz��{����ѷ� Compare some physical properties of water with those of other liquids; and Associate the difference in the properties of the liquids to the types and strength of intermolecular forces existing between molecules. The force of attraction evaporation is an endothermic process that results in a Procedure to determine: term..., a non-polar molecule is polarized by an … semester ( lab )! To intramolecular forces one class period evaporation and intermolecular attractions hypothesis: the polarity molecules. H 6 < C 4 H 10 an … semester ( lab report ) 1 molecules give rise the. Ready: Select the intermolecular forces of attraction lab terminologies intermolecular forces of attraction 1... It becomes solid answer the below questions using the data you obtained in lab, answer below! 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