Question

Which of the following salts will form a basic solution? Can you show me how to determine if the salt will form a basic solution.
A)   NaBr
B)   LiNO2
C)   NH4Cl
D)   NaI
E)   Al(ClO4)

Answer 1

If a strong base and weak acid react with each other to form a basic salt, When this salt is dissolved it forms a basic solution.

A) NaBr = NaOH + HBr

Both the acid and base are strong so it forms a neutral salt

B) LiNO₂ = LiOH + HNO₂

_{Strong Base and} weak acid react to form a basic salt. This will form a basic solution

C) NH₄Cl = NH₄OH + HCl

Strong acid and weak base which gives acidic salt which forms acidic solution

D) NaI = NaOH + HI

Strong acid and strong base gives neutral salt

E) Al(ClO₄)₃ = Al(OH)₃ + 3HClO₄

Weak base and Strong acid give acidic salt