test 2 #7a

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annikaying
Posts: 94
Joined: Sat Sep 14, 2019 12:16 am

test 2 #7a

Postby annikaying » Fri Dec 06, 2019 10:29 am

On test two for number 7a why was the answer 14 hydrogen bonding sites?

Joseph Saba
Posts: 154
Joined: Thu Jul 11, 2019 12:16 am

Re: test 2 #7a

Postby Joseph Saba » Fri Dec 06, 2019 11:09 am

i believe it was 11 hydrogen bonding sites if I remember correctly. Count up the number of lone pairs and the number of hydrogens that are bonded to NOF to and add them together to get the number of hbonding sites

Sartaj Bal 1J
Posts: 101
Joined: Thu Jul 25, 2019 12:17 am

Re: test 2 #7a

Postby Sartaj Bal 1J » Fri Dec 06, 2019 11:45 am

I believe it was 14 binding sites because each oxygen has 2 lone pairs which accounts for 6 sites, and then there are four hydrogens and four nitrogens with a lone pair. Thus accounts for H bonding because the H is attached to an electronegative atom (O, F, N) and the electronegative atoms mentioned above each have lone pairs.

Jasmine Vallarta 2L
Posts: 102
Joined: Sat Aug 17, 2019 12:18 am

Re: test 2 #7a

Postby Jasmine Vallarta 2L » Fri Dec 06, 2019 12:06 pm

It's the number of lone pairs present in the molecule

Justin Quan 4I
Posts: 104
Joined: Sat Sep 14, 2019 12:17 am

Re: test 2 #7a

Postby Justin Quan 4I » Fri Dec 06, 2019 12:15 pm

To add on, the total number of hydrogen bonding sites is equal to the number of lone pairs on electronegative atoms like N, O, F, plus the number of positively charged hydrogen atoms


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