Formal Charge

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Elijah E 1C
Posts: 15
Joined: Fri Apr 06, 2018 11:02 am

Formal Charge

Postby Elijah E 1C » Sun May 20, 2018 9:52 pm

What is the best way to remember how to calculate formal charge since the equation will not be given to us?

Posts: 39
Joined: Fri Apr 06, 2018 11:04 am

Re: Formal Charge

Postby tmehrazar » Sun May 20, 2018 9:57 pm

what works for me is just doing valence electrons - nonbonding electrons - bonding electrons/2
i just try to remember the total you have is the valence, then you remove the lone electrons you used, then the bonding electrons divided by 2 because they're shared

Caitlyn Ponce 1L
Posts: 30
Joined: Fri Apr 06, 2018 11:04 am
Been upvoted: 1 time

Re: Formal Charge

Postby Caitlyn Ponce 1L » Sun May 20, 2018 10:12 pm

I just count the number of valence electrons the element has and subtract that with the number of lone electrons (dots) and bonds (lines) associated with it.

Joshua Yang 1H
Posts: 22
Joined: Mon Jan 08, 2018 8:19 am

Re: Formal Charge

Postby Joshua Yang 1H » Sun May 20, 2018 10:21 pm

# of valence electrons - (number of dots + number of lines) = Formal charge

Cindy Nguyen 1L
Posts: 48
Joined: Fri Apr 06, 2018 11:04 am

Re: Formal Charge

Postby Cindy Nguyen 1L » Mon May 21, 2018 12:39 am

Other than just memorizing it, practice makes you know it and then calculate them faster.

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