Question

Determine whether aqueous solutions of the following salts are acidic, basic or neutral. (with explanations)

HNC₅H₅Cl

NaF

KBr

NH₄CN

HN(C₂H₅)₃HSO₄

Answer 1

HNC5H5Cl ----------------- acidic

here is salt of stong acid and weak base. so pH is < 7. so it is acidic

NaF ----------------- basic   

NaOH + HF ----------------> NaF + H2O

here is salt of stong base and weak acid. so pH is > 7. so it is basic

KBr ---------------- neutral

here is salt of stong acid and strong base. so pH is = 7. so it is neutral

NH4CN -------------- neutral

HN(C2H5)3HSO4 ---------------- acidic

here is salt of stong acid and weak base. so pH is < 7. so it is acidic