15. Which is the correct Lewis structure for acetic acid (CH;CO2H)? н:0: н-с-с-0: H-ö: н-с-С-о н :0: H-c-ö-C-H H:o: н-с-с-б-н нн H H II II IV А) І B) II С) II D) IV 16. In which of the following ions does carbon have a formal charge? [(CH3)4N]* [CH;CO2]F [CH;OH2]* I II III A) I B) II C) II D) None of the above

15. Which is the correct Lewis structure for acetic acid (CH;CO2H)? н:0: н-с-с-0: H-ö: н-с-С-о н :0: H-c-ö-C-H H:o: н-с-с-б-н нн H H II II IV А) І B) II С) II D) IV 16. In which of the following ions does carbon have a formal charge? [(CH3)4N]* [CH;CO2]F [CH;OH2]* I II III A) I B) II C) II D) None of the above

Introduction to General, Organic and Biochemistry

11th Edition

ISBN:9781285869759

Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres

Chapter10: Organic Chemistry

Section: Chapter Questions

Problem 10.19P: 10-19 Write Lewis structures for these ions. (a) HCOf(b) CO32- Bicarbonate ionCarbonate ion (c)...

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10-24 Use the VSEPR model to predict the bond angles and geometry about each highlighted atom. (Hint-. Remember to take into account the presence of unshared pairs of electrons.) H H I I H-C-C-O-H I I H H H-C=C-C1 H H
10-22 Suppose you forget to take into account the presence of the unshared pair of electrons on nitrogen in the molecule NH3. What would you then predict for the H—N—H bond angles and the geometry (bond angles and shape) of ammonia?
Urea, (NH.,)2CO, is used in plastics and in fertil izers. It is also the primary nitrogen-containing substance excreted by humans. O I I H H Urea Complete the Lewis structure of urea, showing all valence electrons. Predict the bond angle about each C and N. Which is the most polar bond in the molecule? (d, Is urea polar or nonpolar?
Draw a Lewis structure for each of the following molecules: (a) chlorodifluoromethane, CHClF2 (b) propanoic acid, C2 H5CO2H (basic structure pictured below) (c) acetonitrile, CH3CH (the framework is H3C-C-N) (d) allene, H3CCCH2
LYRICA (pregabalin) is an oral pharmaceutical primarily indicated for the management of fibromyalgia and neuropathic pain. At a pH of 11, LYRICA has an overall charge of –1, with most atoms neutral and only one oxygen showing a –1 formal charge. The structure for LYRICA at pH 11 is shown below. Add all the missing lone pairs to the given structure of LYRICA.
The curved arrow notation introduced in Section 1.6B is a powerfulmethod used by organic chemists to show the movement of electronsnot only in resonance structures, but also in chemical reactions.Because each curved arrow shows the movement of two electrons,following the curved arrows illustrates what bonds are broken andformed in a reaction. Consider the following three-step process. (a) Addcurved arrows in Step [1] to show the movement of electrons. (b) Use thecurved arrows drawn in Step [2] to identify the structure of X. X isconverted in Step [3] to phenol and HCl.
10-43 Phosphorus is immediately below nitrogen in Group 5A of the Periodic Table. Predict the C—P—C bond angles in trimethylphosphine, (CHaJaP.
10-19 Write Lewis structures for these ions. (a) HCOf(b) CO32- Bicarbonate ionCarbonate ion (c) ch3coo-(d)Cr Acetate ionChloride ion
10-21 Explain how to use the valence-shell electron-pair repulsion (VSEPR) model to predict bond angles and geometry about atoms of carbon, oxygen, and nitrogen.
How does the valence bond description of a carboncarbon double bond account for cis trans isomers?
For acetaldehyde (ch3cho) write the lewis structure. Write the hybridization and geometry of each carbon. Draw iy 3D dtructure and write the bond angles (approximately)
List the bond lenghts between the carbon and the oxygen atoms for the carboxylic acid and carboxylate ion and rank from shortest to longest. carboxylic acid carboxylate ion c-o c=o provide an explanation for the differences in the bond lengths and the orientation of the dipole moment between the acid and ion.

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