1. QUESTION:
How many atoms in the acetic acid molecule (CH3COOH) are capable of hydrogen bonding interaction with water molecules? A. 1, B. 2, C. 3, D. 4
QUESTION:
How many atoms in the acetic acid molecule (CH3COOH) are capable of hydrogen bonding interaction with water molecules? A. 1, B. 2, C. 3, D. 4
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2. Hydrogen bonded to a highly electronegative atom is strongly attracted to lone pair of a highly electronegative atom in the a neighboring molecule. X X X X
Hydrogen bonding occurs when you have a hydrogen atom that is bonded to a highly electronegative atom such as Fluorine, Oxygen,
or nitrogen.
These three hydrogen atoms
CLICK CLICK CLICK are bonded to carbon. These are not capable of hydrogen bonding interaction
This one
HIGHLIGHT H bonded to O
is capable of hydrogen bonding because it is bonded to oxygen.
Because electrons are highly polarized towards the oxygen, this hydrogen atom
is almost bare and will be very attractive to the lone pair of an oxygen
atom in a nearby water molecule.
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As for the carbon atoms are not electronegative enough to be capable of hydrogen bonding.
Oxygen atoms, on the other hand, like these two
HIGHLIGHT two oxygen atoms
have lone pairs that would be attracted to
hydrogen atoms in a water molecule
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Therefore, three of the atoms in acetic acid are capable of hydrogen bonding.
The two oxygen atoms, and the hydrogen atom that is bonded to oxygen. X

3. QUESTION:
How many atoms in the acetic acid molecule (CH3COOH) are capable of hydrogen bonding interaction with water molecules? A. 1, B. 2, C. 3, D. 4
The correct answer is 3.
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4. Video ID: © 2008, Project VALUE (Video Assessment Library for Undergraduate Education), Department of Physical Sciences Nicholls State University Author: Glenn V. Lo Narrator: Funded by Louisiana Board of Regents Contract No. LA-DL-SELECT-13-07/08