Can you help me with this assignment, please? Can you draw molecules below in the correct geometry. Use vectors to determine if the molecule is polar or nonpolar. Lastly determine if the molecule is more soluble in hexane (CH4) or water (H20). You will need to determine the polarity of hexane and water to determine solubility. Molecules CH4 CH2Br2 NH3 Br2 HCI

Can you help me with this assignment, please? Can you draw molecules below in the correct geometry. Use vectors to determine if the molecule is polar or nonpolar. Lastly determine if the molecule is more soluble in hexane (CH4) or water (H20). You will need to determine the polarity of hexane and water to determine solubility. Molecules CH4 CH2Br2 NH3 Br2 HCI

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter7: Molecular Structures

Section: Chapter Questions

Problem 49QRT: Use molecular structures and noncovalent interactions to explain why dimethyl ether, (CH3)2O, is...

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Part A Which of the following likely to be more soluble in hexane, C6H14? Explain your answer in each case. Match the items in the left column to the appropriate blanks in the sentences on the right. hydrogen bonding dispersion forces acetic acid ionic bonds octanoic acid benzene glycerol CaCl₂ CC14 is more soluble, because Among CCl4 and CaCl2, are less likely to be overcome by solute-solvent interactions. Among benzene (C6H6) and glycerol (CH₂(OH) CH(OH)CH₂ OH), soluble, because interaction. in in Among octanoic acid (CH3 (CH₂)6 COOH) and acetic acid (CH3 COOH), more soluble, because it has similar to those in hexane. Reset is more is less likely to be overcome by solute-solvent will be Help
For each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water. compound hydrogen-bonding force Between Between molecules of formula or Lewis the compound and molecules of water? name molecules of the structure compound? H :0: yes yes acetic acid н —с —с-о —н | no no H H yes yes methanimine H – c=N– H no no yes yes hydrogen bromide H Br no no
3. Draw the Lewis-dot structure for C4H10 below. Remember the Lewis-dot structure is the same as the Expanded structure. A. What is the main intermolecular force acting on this molecule? B. Is this molecule polar or nonpolar? Provide a brief explanation (2-3 sentences) for your answer.
How can we complete questions 1-4?
1. Predict whether iodine (1₂) is more soluble in liquid ammonia (NH3) or in carbon disulfide (CS₂). To do this, draw the Lewis dot structure of each compound listed. Include bond dipoles and overall molecular dipoles if present.
4. Draw the Lewis-dot structure for the organic molecule, CH3-O-CH3, below. A. State all the attractive forces acting on this molecule. (Note: attractive force = secondary force = intermolecular force; they all mean the same thing). B. What is the main intermolecular force for this molecule? C. Is this molecule polar or nonpolar? Provide a brief explanation (2-3 sentences) for your answer.
Consider the molecule of chloroform. Its tetrahedral structure is shown. H | CI CCI CI Is this molecule polar? If yes, consider which side of the molecule has partial negative charge and which - partial positive. Then, indicate the direction of the dipole moment relative to the molecule as shown. Non-polar, zero dipole moment. Polar. The dipole vector points along one of the C-Cl bonds. Polar. The dipole vector points along the vertical axis. parallel to the C-H bond. Polar. The dipole vector points along the horizontal axis. Polar. The dipole vector is perpendicular to the plane of the figure.
For each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water. compound hydrogen-bonding force Between Between molecules of formula or Lewis molecules of the the compound and molecules of water? name structure compound? H | O yes yes N-chloromethylamine H - C -N- | O no no H O yes yes fluoromethane CH,F no no H H yes yes methylamine Н — с — N — н no no H ? O O O O :ö: H-z:
For each compound in the table below, decide whether there would be any hydrogen-bonding force between molecules of the compound, or between molecules of the compound and molecules of water. name formic acid compound dibromomethane acetic acid formula or Lewis structure :0: || H-C-O-H CH₂Br₂ H :0: | || H-C-C-O-H H Between molecules of the compound? 00 00 yes no yes no yes hydrogen-bonding force no Between molecules of the compound and molecules of water? 00 00 yes no yes no yes no X
2. Explain why ethanol, CH,CH,OH, has a vapor pressure of 45.0 mmHg at 20°C whereas desflurane, C3H2F%0, has a vapor pressure of 669 mmHg at 20°C. Desflurane's Lewis dot structure is pictured below: F F—с—с —0 —с —н F F
Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on. chemical symbol, substance chemical formula boiling point or Lewis structure Ar (Choose one) A В Cr (Choose one) v H H. H. H - C - C - ) - C H (Choose one) | H H H. H H - C -H D :N - O - H (Choose one) ♥ Н—С — Н ? :0 : :
compound hydrogen-bonding force Between Between molecules of formula or Lewis molecules of the the compound and molecules of water? name structure compound? H H | Н — С | | yes yes N-chloromethylamine - no no H. yes yes hydrogen iodide HI no no :0: || н —с —с-о — н H yes yes acetic acid no no H O O