Question

Consider 0.25 M solutions of the following salts. For each salt, indicate whether the solution is acidic, basic, or neutral.

basic neutral acidic  CsF
basic neutral acidic  NaCl
basic neutral acidic  C₂H₅NH₃NO₃
basic neutral acidic  H₂NNH₃Cl
basic neutral acidic  CsNO₃
basic neutral acidic  RbOCl

Answer 1

basic --> OH- is in solution

neutral --> H+ = OH-

acidic --> H+ is present

so

basic neutral acidic  CsF --> Cs + F- ; F- hydrolysis

F- + H2O <-> HF + OH- this is basic

basic neutral acidic  NaCl , this is neutral salt, won't form hydrolysis

basic neutral acidic  C2H5NH3NO3

C2H5NH3NO3 --> C2H5NH3+ +NO3 -

C2H5NH3+<-> C2H5NH2 + H+; this is acidic
basic neutral acidic  H2NNH3Cl

H2NNH3+ + Cl-

H2NNH3+ --> H2NNH2 + H+

this is acidic

basic neutral acidic  CsNO3 ; this is neutral salt, won't form hydrolysis

basic neutral acidic  RbOCl -_> Rb+ + OCl-

OCl- + H2O <-> HOCl + OH- this is basic