Chem I: Determining Acidic, Basic or Neutral Salt

1. Nov 2, 2009

markelmarcel

1. The problem statement, all variables and given/known data

Predict if the following salts are acidic, basic, neutral or undetermined.

2. Relevant equations

a. NaOCl

b. NH4I

c. Sr(ClO3)2

d. KCN

3. The attempt at a solution

A. NaClO = Na+ and ClO-
So, if Na+ gives up a proton, that would turn it into Na... and make ClO into HClO... and HClO is a strong acid.

B. NH4I = NH4+ and I-
So if NH4+ gives up a proton it turns into NH3 and HI... which is a strong acid.

C. Sr(ClO3)2 = Sr2+ and ClO3-
So if Sr gives away a proton it's left with Sr+ and ClO3 becomes neutral??

D. KCN = K+ and CN-
K can give up a proton and be K and make CN- have no charge... CN? Neutral?

I know that C is netural but I don't know why and I'm pretty sure I'm right on the two acids, but the last one I think is supposed to be basic, but I don't know how....

2. Nov 2, 2009

symbolipoint

You must be wrong about NaClO; One would imagine an anion with more oxygens could be for an acidic protonated form, but the ClO-1 is not from a strong acid. (Hypochlorite).

KCN ?
K+ from strong base, and CN- from weak acid.

3. Nov 2, 2009

markelmarcel

See... I don't understand how this works. Haha. I got one at least! My prof went through all this a little too fast for me. Any online resources to help me better understand this? (I like to be active with learning, not a whiner who just wants the answers)

4. Nov 2, 2009

symbolipoint

Originally Posted by symbolipoint: