5 public questions tagged with this topic.
[Co(NH₃)4Cl₂]+ has 2 isomers (cis, trans). [Co(NH₃)2(H₂O)2Cl₂]+ (Ma₂b2c2) has 3 (all cis, cis-trans-cis, all trans).
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Isomerism - Geometrical Isomerism in Coordination Compounds
In [Co(en)2Cl₂]NO₃, [Co(en)2Cl₂]+ balances NO₃−. Each en is neutral, each Cl− is −1. Thus, x + 0 + 2(−1) = +1, so x = +3.
Ref: NCERT Class 12 Chemistry > Chapter 5: Coordination Compounds > Topic: Colour and Magnetic Properties and Stability and Importance
E°cell = 0.00 - (-0.28) = 0.28 V . Ecell = 0.28 - (0.059/2) log (0.02/0.01²) = 0.28 - 0.07375 = 0.20625 V .
Ref: NCERT Class 12 Chemistry > Chapter 2: Electrochemistry > Topic: Nernst Equation and Gibbs Energy and Equilibrium Constant
E°cell = 1.07 - (-0.28) = 1.35 V . Ecell = 1.35 - (0.059/2) log ([Co²⁺][Br⁻]²/1) = 1.35 - 0.0295 log (0.01 × 0.0025) = 1.35 + 0.073 = 1.423 V .
Ref: NCERT Class 12 Chemistry > Chapter 2: Electrochemistry > Topic: Nernst Equation and Gibbs Energy and Equilibrium Constant
E°cell = E°cathode - E°anode = 0.80 - (-0.28) = 1.08 V .
Ref: NCERT Class 12 Chemistry > Chapter 2: Electrochemistry > Topic: Electrochemical Cells - Galvanic Cells and Electrode Potential
