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Experiment 10-Polarity and Solubility Evelyn Dunas 204 Name Date 2/19 Section Pre-Laboratory Assignment 1. Define the terms below. 2 liqurds that do not mix a. Immiscible – b. Hydrocarbon - made up of Strictly carbons + thydrogenis, this | makes it easy to determine therr polarity, since here are no polar bonds all hydrecark 1s are automati.cally nonpolar 2. Select any functional' group (consult Table 3 in Lab 9) and indicate its polarity by úsing electronegativity values, partial charges and the direction of the dipole moment (from &+ → 8-); example: the S-H group: 2.5 2.1 S+ 3. What is the general rule of solubility? Explain briefly what it means! Like dissowes like, with the "lke-ness substances being substances will dissole Other polar and the same with non polar substances. 11 omt fo based on their polarity Polar substances 4. Consider the following molecule: ZHNNH a. Redraw the Lewis structure of this molecule (show the bonds for each of the hydrogen atoms on N; show the C-atom that forms the C=0 bond); add all lone pairs. Using the Pauling electronegativity scale, determine which bonds are polar; show them on the structure using the &+/8- notation. b. Is this molecule polar? (You need to determine the polarity of each part of the molecule and then determine whether they cancel out; if they all cancel out, the molecule would be non- polar; if they do not cancel, the molecule should be polar.) Explain briefly why or why not. 137 Experiment 10-Polarity and Solubility c. What type of intermolecular forces should exist between two of these molecules? dipole-dipole d. Will this molecule be soluble in water, H2O? Explain briefly why or why not. ton ob h does tol ebrod a wode) sipelom abbio o urud aiyfertwsybelt ood 0-3 ar 201ol Jedi ince oda worde M no mer wode nlog eus abnod alew oain bepx 138

Experiment 10-Polarity and Solubility Evelyn Dunas 204 Name Date 2/19 Section Pre-Laboratory Assignment 1. Define the terms below. 2 liqurds that do not mix a. Immiscible – b. Hydrocarbon - made up of Strictly carbons + thydrogenis, this | makes it easy to determine therr polarity, since here are no polar bonds all hydrecark 1s are automati.cally nonpolar 2. Select any functional' group (consult Table 3 in Lab 9) and indicate its polarity by úsing electronegativity values, partial charges and the direction of the dipole moment (from &+ → 8-); example: the S-H group: 2.5 2.1 S+ 3. What is the general rule of solubility? Explain briefly what it means! Like dissowes like, with the "lke-ness substances being substances will dissole Other polar and the same with non polar substances. 11 omt fo based on their polarity Polar substances 4. Consider the following molecule: ZHNNH a. Redraw the Lewis structure of this molecule (show the bonds for each of the hydrogen atoms on N; show the C-atom that forms the C=0 bond); add all lone pairs. Using the Pauling electronegativity scale, determine which bonds are polar; show them on the structure using the &+/8- notation. b. Is this molecule polar? (You need to determine the polarity of each part of the molecule and then determine whether they cancel out; if they all cancel out, the molecule would be non- polar; if they do not cancel, the molecule should be polar.) Explain briefly why or why not. 137 Experiment 10-Polarity and Solubility c. What type of intermolecular forces should exist between two of these molecules? dipole-dipole d. Will this molecule be soluble in water, H2O? Explain briefly why or why not. ton ob h does tol ebrod a wode) sipelom abbio o urud aiyfertwsybelt ood 0-3 ar 201ol Jedi ince oda worde M no mer wode nlog eus abnod alew oain bepx 138

Chemistry by OpenStax (2015-05-04)
Chemistry by OpenStax (2015-05-04)
1st Edition
ISBN:9781938168390
Author:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Publisher:Klaus Theopold, Richard H Langley, Paul Flowers, William R. Robinson, Mark Blaser
Chapter11: Solutions And Colloids
Section: Chapter Questions
Problem 27E: What is the microscopic explanation for the macroscopic behaviour illustrated in Figure 11.15?
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Experiment 10-Polarity and Solubility Evelyn Dunas 204 Name Date 2/19 Section Pre-Laboratory Assignment 1. Define the terms below. 2 liqurds that do not mix a. Immiscible – b. Hydrocarbon - made up of Strictly carbons + thydrogenis, this | makes it easy to determine therr polarity, since here are no polar bonds all hydrecark 1s are automati.cally nonpolar 2. Select any functional' group (consult Table 3 in Lab 9) and indicate its polarity by úsing electronegativity values, partial charges and the direction of the dipole moment (from &+ → 8-); example: the S-H group: 2.5 2.1 S+ 3. What is the general rule of solubility? Explain briefly what it means! Like dissowes like, with the "lke-ness substances being substances will dissole Other polar and the same with non polar substances. 11 omt fo based on their polarity Polar substances 4. Consider the following molecule: ZHNNH a. Redraw the Lewis structure of this molecule (show the bonds for each of the hydrogen atoms on N; show the C-atom that forms the C=0 bond); add all lone pairs. Using the Pauling electronegativity scale, determine which bonds are polar; show them on the structure using the &+/8- notation. b. Is this molecule polar? (You need to determine the polarity of each part of the molecule and then determine whether they cancel out; if they all cancel out, the molecule would be non- polar; if they do not cancel, the molecule should be polar.) Explain briefly why or why not. 137
Transcribed Image Text:Experiment 10-Polarity and Solubility Evelyn Dunas 204 Name Date 2/19 Section Pre-Laboratory Assignment 1. Define the terms below. 2 liqurds that do not mix a. Immiscible – b. Hydrocarbon - made up of Strictly carbons + thydrogenis, this | makes it easy to determine therr polarity, since here are no polar bonds all hydrecark 1s are automati.cally nonpolar 2. Select any functional' group (consult Table 3 in Lab 9) and indicate its polarity by úsing electronegativity values, partial charges and the direction of the dipole moment (from &+ → 8-); example: the S-H group: 2.5 2.1 S+ 3. What is the general rule of solubility? Explain briefly what it means! Like dissowes like, with the "lke-ness substances being substances will dissole Other polar and the same with non polar substances. 11 omt fo based on their polarity Polar substances 4. Consider the following molecule: ZHNNH a. Redraw the Lewis structure of this molecule (show the bonds for each of the hydrogen atoms on N; show the C-atom that forms the C=0 bond); add all lone pairs. Using the Pauling electronegativity scale, determine which bonds are polar; show them on the structure using the &+/8- notation. b. Is this molecule polar? (You need to determine the polarity of each part of the molecule and then determine whether they cancel out; if they all cancel out, the molecule would be non- polar; if they do not cancel, the molecule should be polar.) Explain briefly why or why not. 137
Experiment 10-Polarity and Solubility c. What type of intermolecular forces should exist between two of these molecules? dipole-dipole d. Will this molecule be soluble in water, H2O? Explain briefly why or why not. ton ob h does tol ebrod a wode) sipelom abbio o urud aiyfertwsybelt ood 0-3 ar 201ol Jedi ince oda worde M no mer wode nlog eus abnod alew oain bepx 138
Transcribed Image Text:Experiment 10-Polarity and Solubility c. What type of intermolecular forces should exist between two of these molecules? dipole-dipole d. Will this molecule be soluble in water, H2O? Explain briefly why or why not. ton ob h does tol ebrod a wode) sipelom abbio o urud aiyfertwsybelt ood 0-3 ar 201ol Jedi ince oda worde M no mer wode nlog eus abnod alew oain bepx 138
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