Asked by Nurah
Boron trifluoride (BF3) has properties ordinarily associated with acids. According to what acid base theory or theories is it considered an acid?
Is it an Arrhenius, Brønstead, Or Lewis Definition? Or is it all?
Thank you very much.
Is it an Arrhenius, Brønstead, Or Lewis Definition? Or is it all?
Thank you very much.
Answers
Answered by
DrBob222
BF3. Can you draw the lewis dot structure for this. Look on the web and google Lewis dot structure BF3.It's close to this.
F:B:F
:F:
wotj extra dots around the F atoms. Note the BF3 does not obey the rule of eight; i.e., it only six electrons around B in BF3. Therefore, two electrons may add at this point.
Which acid/base theory describes the behavior as "an addition of electrons"?
Hint: Arrhenius says acid provides H^+ in solution.
Bronsted-Lowry acid is a proton donor.
BF3 ACCEPTS a pair of electrons from a donor.
F:B:F
:F:
wotj extra dots around the F atoms. Note the BF3 does not obey the rule of eight; i.e., it only six electrons around B in BF3. Therefore, two electrons may add at this point.
Which acid/base theory describes the behavior as "an addition of electrons"?
Hint: Arrhenius says acid provides H^+ in solution.
Bronsted-Lowry acid is a proton donor.
BF3 ACCEPTS a pair of electrons from a donor.
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