How to Identify Lewis Acids and Bases and Their Conjugate Base Formulas?

In summary, the formula for conjugate bases can be determined by gaining electrons. The Lewis acid and Lewis base can be identified based on their ability to accept or donate electrons. A strong acid has a weak conjugate base and a strong base has a weak conjugate acid. Lewis acids and bases interact through dative bonding, with the Lewis base donating both electrons in the bond. The concept of conjugate acids and bases is further explained in J.D.Lee's book and can be found in the provided link.
  • #1
BH20
78
0
Whats the formula for this conjugate bases? how do I get them?

a) HSO3tothe(-)
b) NH3
c) HCL

and how is the lewis acid and lewis base identified?

thanks
 
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  • #2
Read J.D.Lee, elementary questions, pal.
Viloating the Rules I guess, but I will answer.
So Acid are something with donatable H+, which means accepting e-!
That is exactly Lewis Acid, anything that accepts e- is an Acid.
Anything that donates e- is Base!

http://web.chem.ucla.edu/~harding/tutorials/acids_and_bases/conj_acids.html

That is all...
 
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  • #3
Lewis ACID: Any compound in need of electrons.
Lewis BASE: Any compound that can donate electrons.

Conjugate Concept:
------------------

Suppose you need the conjugate acid of NH3 (Ammonia) which is a base, NH4+ , by gain of electron.

Also A STRONG ACID HAS A WEAK CONJUGATE BASE AND A STRONG BASE HAS A WEAK CONJUGATE ACID.
 
  • #4
lewis acid/bases interact through dative bonding (the lewis base donates both of the electrons thus it will be the one with the lone pair).
 

1. What is a conjugate base?

A conjugate base is the species that remains after a Bronsted-Lowry acid has donated a proton.

2. How are formulas for conjugate bases determined?

The formula for a conjugate base is determined by removing a hydrogen ion (proton) from the corresponding acid and adjusting the charge accordingly.

3. How do I know if a substance is a conjugate base?

A substance is a conjugate base if it has one less hydrogen atom and one more negative charge than the corresponding acid.

4. What is the relationship between a conjugate base and its acid?

A conjugate base and its acid are related by the transfer of a proton. The acid donates a proton to become its conjugate base, and the conjugate base can then accept a proton to become its acid.

5. Can a substance be both an acid and a conjugate base?

Yes, a substance can act as both an acid and a conjugate base. This is known as amphiprotic behavior and is observed in molecules with both acidic and basic functional groups.

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