
question number 2&3 please 2. Identify the strongest type of intermolecular forces in acetone, ethanol, water...
2. Identify the strongest type of intermolecular forces in acetone, ethanol, water and hexane. (Structures listed on page 15.) Experiment 2 Intermolecular Forces There are three general types of intermolecular forces. All substances exhibit London Dispersion Forces (LDF), and they are generally the weakest of the three types. These London forces are due to the attractions between small, temporary dipoles that arise from the constant, random movement of the electrons in a substance. As molar mass increases, the size of...
which liquid has the strongest intermolecular forces? explain please methanol,ethanol,1-propanol,1-butane,n-hexane,n-heptane,n-octane,acetone,2-propanol
3. Considering intermolecular forces, which of the following liquids has the highest vapour pressure: acetone, methanol, water, ethyl ether, or ethanol? Explain your reasoning.
3. Considering intermolecular forces, which of the following liquids has the highest vapour pressure: acetone, methanol, water, ethyl ether, or ethanol? Explain your reasoning.
2.Consider Table 13.3 (Page 18 of 7/9Slides)and determine which solvents (among water, acetone, methanol, ethanol, hexane, toluene, and carbon tetrachloride) would dissolve the following solutes. In each case, specify the type of solvent-solute intermolecular forces:[3] a.Acetic acid (CH3COOH) b.Sodium nitrate (NaNO3) c.Olive oil Table 13. Common Polar Solvents Common Nonpolar Solvents Water (H2 O) Hexane (C6H14) Acetone (CH3COCH3) Diethyl ether (CH3CH2OCH2CH3) Methanol (CH3OH) Toluene (C7H8) Ethanol (CH3CH2OH) Carbon tetrachloride (CCl4)
Liquid Molar Mass (g/mol) Polarity (P, NP) Strongest type of Intermolecular Force Molecular structure Methanol Polar hydrogen bonds Ethanol Ipolar 1-Propanol polar 11-Butanol Ipolar n-Hexane Inon- polar n-Heptane Inon- I polar n-octane non- polar Acetone Polar 2- propanol polar 1. Which liquid tested has the strongest intermolecular forces? Justify your answer. (pt) Table 2 (15pes total) Minimum AT Initial Liquid temperature (°C) Methanol 17.8°C Ethanol 20+C |- Propanol 19.5°C 1-Butanol 19.8°C In-Hexane 18.4°C n-Heptane 20.7°C In-octane 19.4°C | Acetone 20.1.0...
INTERMOLECULAR FORCES INTRODUCTION LEARNING OBJECTIVES To relate the effecet of intermolecular forces on relative melting points and vapour pressures of some organic substances THEORY Weak attractive forces that occur between individual molecules in substances are called intermolecular forces. These include London dispersion forces, dipole-dipole forces and hydrogen-bonding forces. Collectively, the three types of intermolecular forces are referred to as Van der Waals forces. These attractive forces are much weaker than the chemical bonds between atoms in a molecule. Note that...
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1. Indicate which is the strongest intermolecular force between each of the two molecules below: a. H2S and H2O b. C4H10 (butane) and (CH3)2CO (acetone) 2. Considering properties of liquids: a. Surface tension is proportional to the magnitude of intermolecular forces and/or attractive forces among the molecules in the liquid. With this perspective in mind, which in the following pair of liquids would have the highest surface tension: H2O or CHCl3 (chloroform) b....
7). a). Is the acetone molecule non-polar or polar? Circle. Non-polar Polar b). Sketch pictures of the intermolecular forces that would occur between the molecules of acetone and the molecules of 2- propanone if you have a mixture of the two liquids. What would be the main type of IMF that is responsible for the attraction? (Give a name for the IMF). c). The pentane molecule and the 2-pentanone molecule both have five carbon atoms on their structures. Why 2-pentanone...
Heat of Vaporization and Intermolecular Forces Pre-Lab Section Number Date: PRE-LAB QUESTIONS Show all work for full credit. 1. For the following liquids: methanol, 2-propanol, n-hexane, acetone, and water, (a) write the molecular formula; (b) draw a Lewis structure for each compound; and (c) calculate the molecular weight of each compound. (Copy your work into your lab notebook for use during and after your lab experiment.) 9 | Heat of Vaporization and Intermolecular Forces: Pre-Lab