Help of 3F.11

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WUng_1D
Posts: 50
Joined: Sat Aug 24, 2019 12:16 am

Help of 3F.11

Postby WUng_1D » Mon Nov 11, 2019 4:55 pm

Which of the following molecules are likely to form hydrogen bonds: (a) PH3; (b) HBr; (c) C2H4; (d) HNO2?

How can I tell which molecules are more likely to form hydrogen bonds.

SarahSteffen_LEC4
Posts: 67
Joined: Sat Aug 24, 2019 12:17 am

Re: Help of 3F.11

Postby SarahSteffen_LEC4 » Mon Nov 11, 2019 5:04 pm

An important thing to note is that hydrogen bonds form when an H bonds to either an N, O, or F and there must be lone pairs available for the H to bond to. Thus, this can only be true for d (HNO2).

Lauren Tanaka 1A
Posts: 109
Joined: Sat Aug 17, 2019 12:18 am

Re: Help of 3F.11

Postby Lauren Tanaka 1A » Tue Nov 12, 2019 5:44 pm

It might be helpful to draw the Lewis Structures of each molecule. From there you can see which molecules have a hydrogen bonded to N, O, or F atoms. This indicates that there is a hydrogen bond in that particular molecule.

dtolentino1E
Posts: 101
Joined: Thu Jul 11, 2019 12:17 am

Re: Help of 3F.11

Postby dtolentino1E » Tue Nov 12, 2019 5:48 pm

i know i remember by the acronym FON (the elements fluorine, oxygen, and nitrogen)

805097738
Posts: 180
Joined: Wed Sep 18, 2019 12:20 am

Re: Help of 3F.11

Postby 805097738 » Tue Nov 12, 2019 7:13 pm

I use the saying hydrogen bonds are FON (like fun) to remember that they occur with these atoms. this eliminates a b and c

Charysa Santos 4G
Posts: 107
Joined: Wed Sep 18, 2019 12:21 am

Re: Help of 3F.11

Postby Charysa Santos 4G » Tue Nov 12, 2019 7:16 pm

In order for a molecule to form hydrogen bonds, at least one hydrogen atom in the molecule must be bonded to either a oxygen, nitrogen, or fluorine atom.


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