Question

Determine whether each salt will form a solution that is acidic, basic, or neutral.

1. K2NO2

2. Fel3

3. Na2CO3

4. CaS

Answer 1

If the neutralization reaction takes place between strong acid and strong base, a salt and unionized water is formed. The resulting solution is neutral. If acid is strong and the base is weak the resulting solution will be acidic. If acid is weak and the base is strong, the resulting solution will be basic. KNO, is a salt formed from the reaction of strong base KOH and weak acid HNO,. Hence the solution is Basic. Fel, is a salt formed from the reaction of weak base Fe(OH), and strong acid Hl. Hence the solution is Acidic. Na,coz is a salt formed from the reaction of strong base NaOH and weak acid H, CO. Hence the solution is Basic. Cas is a salt formed from the reaction of strong base Ca(OH)2 and weak acid H,S. Hence the solution is Basic.