A buffer solution is prepared by mixing 0.1 M ammonia and 1.0 M ammonium chloride. At 298 K, the pKb of NH4OH is 5.0. The pH of the buffer is
10.0
9.0
6.0
8.0
Water is well known amphoprotic solvent. In which chemical reaction water is behaving as a base?
H2SO4 + H2O → H3O+ + HSO
H2O + H2O → H3O+ + OH-
H2O + NH → NH3 + OH-
H2O + NH3 → NH + OH-
The standard emf of a cell, involving one electron change is found to be 0.591 V at 25°C. The equilibrium constant of the reaction is (F = 96500 C mol-1)
1.0 × 101
1.0 × 105
1.0 × 1010
1.0 × 1030