write the conjugate base for the following:
A.) HCN=
B.) HPO4^2- =
C.) NH4+ =
D.) HC2H3O2=
Take a H^+ off each.
HCN ==> H^ + CN^-
To find the conjugate base of an acid, you need to remove a proton (H+) from the acid. This can be done by replacing the proton with its corresponding negative ion. Here are the conjugate bases for the given acids:
A.) HCN:
To find the conjugate base of HCN, you remove the proton (H+) and replace it with a negative charge. The resulting conjugate base is CN- (cyanide ion).
B.) HPO4^2-:
It's important to note that HPO4^2- is already an anion (negatively charged), so its conjugate base form will be the same compound, HPO4^2-. However, it would be considered an acid in this case.
C.) NH4+:
To find the conjugate base of NH4+, you remove a proton (H+) from the ammonium ion, resulting in NH3 (ammonia). The conjugate base of NH4+ is NH3.
D.) HC2H3O2:
To find the conjugate base of HC2H3O2, you need to remove a proton (H+) and replace it with a negative charge. The resulting conjugate base is C2H3O2- (acetate ion).