Match each aqueous salt solution with its correct description. Premise Response Drag and drop to match 1 KCI -A Acidic 2 Na2S03 -B Basic 3 NH4Br -CAcidic 4 LiCH3 CO2 - D Neutral -E Basic F Basic -G Neutral - H Basic
Solution
(1) KCl is neutral beacuse it is formed through a neutralisation reaction..
HCl + KOH ---> KCl +H 2 O
(2) Na 2 SO 3 solution is a basic
Na 2 SO 3 ----> 2Na+ + SO 3 2-
SO 3 2- + H 2 O -----> HSO 3 - + OH -
Since OH- is formed, the pH would be greater than 7 and thus the solution is basic.
(3) NH4Br is formed by weak base, NH3 and strong acid, HBr. So the requlting solution is acidic
(4) LiCH 3 CO 2 is basic
CH3COOH + LiOH ---> LiCH 3 CO 2
CH 3 CO 2 - + H2O ---> CH3COOH + OH-
.
Match aqueous salt solutions to their descriptions
1. Match each aqueous salt solution with its correct description. Premise Response Drag and drop
to match 1 KCI -A Acidic 2 Na2S03 -B Basic 3 NH4Br -CAcidic 4 LiCH3 CO2 - D Neutral -E
Basic F Basic -G Neutral - H Basic
Solution
(1) KCl is neutral beacuse it is formed through a neutralisation reaction..
HCl + KOH ---> KCl +H 2 O
(2) Na 2 SO 3 solution is a basic
Na 2 SO 3 ----> 2Na+ + SO 3
2-
SO 3
2-
+ H 2 O -----> HSO 3
-
+ OH -
Since OH- is formed, the pH would be greater than 7 and thus the solution is basic.
(3) NH4Br is formed by weak base, NH3 and strong acid, HBr. So the requlting solution is acidic
(4) LiCH 3 CO 2 is basic
CH3COOH + LiOH ---> LiCH 3 CO 2
CH 3 CO 2 - + H2O ---> CH3COOH + OH-
