What's More Activity 1. Strength of IMFA and Physical Properties of Covalent Compounds For each pair of molecules, identify the one with the higher boiling point (BP), melting point (MP), viscosity (V), surface tension (ST) and vapor pressure (VP). Briefly explain your choice. BP MP V. ST VP CI-C-C CI Methane, CH. carbon tetrachloride, CCl H. H. Dihydrogen sulfide, H-S water, H-O H. H- H. H. H. Methanol, CH,OH ethanol. CH.CH-OH HO H C C OH H C C-C-H H. Acetic acid, CH.COOH H. acetone. CHOCH Adapted from Punzalan and Monserat (2016)

What's More Activity 1. Strength of IMFA and Physical Properties of Covalent Compounds For each pair of molecules, identify the one with the higher boiling point (BP), melting point (MP), viscosity (V), surface tension (ST) and vapor pressure (VP). Briefly explain your choice. BP MP V. ST VP CI-C-C CI Methane, CH. carbon tetrachloride, CCl H. H. Dihydrogen sulfide, H-S water, H-O H. H- H. H. H. Methanol, CH,OH ethanol. CH.CH-OH HO H C C OH H C C-C-H H. Acetic acid, CH.COOH H. acetone. CHOCH Adapted from Punzalan and Monserat (2016)

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter10: Liquids And Solids

Section: Chapter Questions

Problem 146CP: Rationalize the differences in physical properties in terms of intermolecular forces for the...

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teaching and le: X O New Tab 8 https://east.cengagenow.com ilrn/takeAssignment/takeCovalentActivity.do?locator=assignment-take O Other Bookmarks (References) Use the References to access important values if needed for this question. What type(s) of intermolecular forces are expected between CH3CH2CH3 molecules? 丰 Indicate with a Y (yes) or an N (no) which apply. dipole forces induced dipole (London dispersion) forces hydrogen bonding Try Another Version 2 item attempts semaining Submit Answer 3:23 PM 5/5/202 SONY WEB) One Touch Web Access Without Booting Up
Solubility- hexachlorobenzene Q1)Using the Lewis structures of the molecule and water, identify and label areas of intermolecular attraction. ▪More than one water molecule should be shown ▪Label the type of IM forces present b)Using the Lewis structures of the molecule and a nonpolar solvent (e.g., hexane), identify and label areas of intermolecular attraction. c)explain the solubility (or lack thereof) of your molecule in water. When available, use solubility data (at the same temperature) to support your explanation. d)explain the solubility (or lack thereof) of your molecule in nonpolar solvents. When available, use solubility data (at the same temperature) to support your explanation. e)when dissolved in water, qualitatively discuss whether the molecule is a strong electrolyte, weak electrolyte, or nonelectrolyte. Please answer very soon will give rating surely All questions answers needed
Consider NH3 and H2S and rank them by the following properties: • Boiling point: NH3 (> or or or or < or =) H2S
Both NH3, NCI3, and NF3 are all polar. Here is a data table with some additional information: Boiling Molecular Melting Point (°C) Name Point Geometry (°C) Nitrogen trihydride (ammonia) Trigonal -77.7 -33.3 Pyramidal Nitrogen trichloride Trigonal -40.0 71.0 Pyramidal Nitrogen trifluoride Trigonal -207 -129 Pyramidal Considering intermolecular forces, for what reason would nitrogen trichloride have such a high boiling point? It can participate in H-bonding The small mass means it takes less energy to break the IMF The molecular geometry makes it the most polar of the compounds Unlike the other substances, it is polar. The larger mass and larger electron cloud means stronger LDF
2. Defend or refute: If two different compoundshave identical melting points, melting point analysis can be used to determine if thetwo compoundsare identical or different.
TRUE or FALSE 1. Molecules with temporary dipole moment tend to align with opposite polarities in the solid phase for maximum attractive interaction. 2. The boiling points of compounds containing elements in the same periodic group is inversely proportional to the element's molar mass. 3. When adhesion is greater than cohesion, a convex appearance of the liquid in a tube is evident. I also need an explanation for each number as to why it is true or false, thanks!
Rationalize the differences in physical properties in terms of intermolecular forces for the following organic compounds. Compare the first three substances with each other, compare the last three with each other, and then compare all six. Can you account for any anomalies? bp (C) mp (C) Hvap (kJ/mol) Benzene, C6H6 80 6 33.9 Naphthalene, C10H8 218 80 51.5 Carbon tetrachloride 76 -23 31.8 Acetone, CH3COCH3 56 -95 3.18 Acetic acid, CH3CO2H 118 17 39.7 Benzoic acid, C6H5CO2H 249 122 68.2
Which should have the higher melting point, MgO or NaCl? (a) MgO (b) Nacl
1. How do Butane and Butanol two molecules differ in boiling point, viscosity and water solubility?Explain why? 2. What are the molecular shape of SF 6 , BrF 5 and XeF 43. “Helium gas plays a vital role as a component of breathing gas” Explain with real lifeexample.4. What is color? Discuss based on electronic movements in an atom.
Rank the compounds below from lowest to highest viscosity based on their structures. (Hint: hydrogen bonds formed between molecules with N-H groups are weaker than those formed between molecules with O-H groups.) 1-butanamine, CH3CH2CH2CH2NH2 1-hexanamine, CH3CH2CH2CH2CH2CH2NH2 methanamine, CH3NH2 1-propanamine, CH3CH2CH2NH2
Use the References to access important values if needed for this question. One or more of the monomers below are needed to make the polymer Cl - CHCH2CHCH,CHCH2- Choose which one(s). O H H. O NH2 (CH2)6-NH2 H. H. он OH H H. -CHa O O
7. Electronegativity All about ammonia (NH3). Sb (antimony, atomic #51,) is in same Periodic Table column as N. The boiling point of SÜH3 (stibine, -17 °C) is slightly higher than NH3 (-33 °C). H 2.1 N 3.0 Sb 2.1 7a. What kinds of intermolecular interactions would occur in NH3 (1)? What kinds of intermolecular interactions would occur in SbH3 (1)? Is it surprising or expected that stibine would have a higher boiling point than ammonia? What could account for this higher boiling point?

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