Which of the following has a polar covalent bond? CH 3 NH 2 CH 3 CH 3 CH 3 F CH 3 OH

Hello, everyone. In this video, we have to identify the compounds with polar equivalent bonds from this list below. So we have three different or four different compounds that we have here. So what is polarity, polarity and Covalin bonds arises as a result of differences in the electro negativity of the bonded atoms. The difference in electro negativity results in the separation of charge creating a dipole moment. So the compounds that contain bonds with a die pool among the given molecules is going to be let's do is highlight this in red. So we have ch three cl as well as our H and F compound. So the electric negativity difference between our carbon and chlorine as well as our hygiene and flooring makes both of these bonds polar. So we can actually use the electro negativity values that we can either find given to you by a professor found in your textbook or even found online. It would take the electric negativity difference. So that equation is, so we use the equation of delta E N. So what this delta means is the change in we're talking about the change in electro negativity. So that's our lower case E and capital N. So we're taking the absolute value of the electro negativity value of, let's say hydrogen minus that of flooring. Of course, it doesn't really matter what order we do in, we could take the electro negativity of flooring minus the electro negativity of our hydrogen because we are taking the absolute value, we want to see the difference in these values. So we see if we do the calculations for all four of the atoms found in four of our compounds here, then we see that the one with the greatest electro negativity difference is going to be indeed our ch three sail as well as our H and F. So again, these answers are this question is asking us for the compounds that contain a polar Colin bond and that is going to be the ones that we have highlighted. So again, that is CH three C L and H N F. So those two are going to be my final answers for this problem.

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1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

1. A Review of General Chemistry

Electronegativity

Organic Chemistry

1. A Review of General Chemistry

Electronegativity

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2:06 minutes

Problem 50a

Textbook Question

Which of the following has a polar covalent bond?
CH₃NH₂ CH₃CH₃ CH₃F CH₃OH

Verified step by step guidance

Step 1: Understand the concept of polar covalent bonds. A polar covalent bond occurs when two atoms share electrons unequally due to a difference in their electronegativities. The atom with higher electronegativity pulls the shared electrons closer, creating a partial negative charge (δ-) on that atom and a partial positive charge (δ+) on the other atom.

Step 2: Analyze the electronegativity of the atoms in each molecule. For example, fluorine (F) and oxygen (O) are highly electronegative, while carbon (C) and hydrogen (H) have lower electronegativities. Nitrogen (N) is moderately electronegative.

Step 3: Examine each molecule: - CH3NH2: The bond between N and H is polar because N is more electronegative than H. - CH3CH3: All bonds are between C and H or C and C, which are nonpolar due to similar electronegativities. - CH3F: The bond between C and F is polar because F is much more electronegative than C. - CH3OH: The bond between O and H is polar because O is more electronegative than H.

Step 4: Compare the molecules and identify which ones contain polar covalent bonds. Molecules with bonds between atoms of significantly different electronegativities will have polar covalent bonds.

Step 5: Conclude that CH3NH2, CH3F, and CH3OH contain polar covalent bonds, while CH3CH3 does not because it only contains nonpolar bonds.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Polar Covalent Bonds

Polar covalent bonds occur when two atoms share electrons unequally due to a difference in electronegativity. In such bonds, the atom with higher electronegativity attracts the shared electrons more strongly, resulting in a partial negative charge on that atom and a partial positive charge on the other. This creates a dipole moment, making the molecule polar.

Electronegativity

Electronegativity is a measure of an atom's ability to attract and hold onto electrons in a chemical bond. The scale of electronegativity, developed by Linus Pauling, ranges from 0 to 4, with fluorine being the most electronegative element. Understanding electronegativity helps predict the nature of bonds between different atoms, particularly whether they will be ionic, polar covalent, or nonpolar covalent.

Molecular Polarity

Molecular polarity refers to the distribution of electrical charge across a molecule, which is influenced by the presence of polar bonds and the molecule's shape. A molecule is polar if it has a net dipole moment, meaning that the vector sum of all dipole moments does not cancel out. This property affects the molecule's physical characteristics, such as solubility and boiling point.

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Which of the following has a polar covalent bond?CH3NH2 CH3CH3 CH3F CH3OH

Key Concepts

Polar Covalent Bonds

Electronegativity

Molecular Polarity

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Which of the following has a polar covalent bond?
CH₃NH₂ CH₃CH₃ CH₃F CH₃OH