Quantum Numbers

Question 1
Give an appropriate set of quantum numbers (n,l,m_l,m_s) for an electron in the following orbitals:

1. 2s [Solution]
2. 2p_x [Solution]
3. 3p_z [Solution]
4. 3d_xz [Solution]
5. 4d_z2 [Solution]
6. 5d_x2-_y2 [Solution]

Slater's Rules

Question 1
Determine the effective nuclear charge (Z*) for a valence electron in the following atoms or ions:

1. As⁺ [Solution]
2. S [Solution]
3. Cr [Solution]
4. Pd²⁺ [Solution]
5. Cu⁺ [Solution]

Oxidation-Reduction (RedOx) Reaction

Question 1
Balance the following reaction (acidic conditions):

1. BrO₃^– + N₂H₄ → Br^– + N₂ [Solution]
2. UO²⁺ + NO₃^– → UO₂²⁺ + NO [Solution]
3. P₄ + NO₃^– → H₂PO₄^– + NO [Solution]
4. S₂O₃^2– + MnO₄^– → SO₄^2– + Mn²⁺ [Solution]
5. Ag⁺ + H₂CO → Ag + HCO₂H [Solution]

Question 2
Balance the following reaction (basic conditions):

1. ClO^– + CrO₂^– → Cl^– + CrO₄^2– [Solution]
2. Fe(OH)₂ + CrO₄^2– → Fe₂O₃ + Cr(OH)₄^– [Solution]
3. CH₃CH₂OH + MnO₄^– → CH₃COO^– + MnO₂ [Solution]
4. ClO₂ → ClO₃^– + Cl^– [Solution]
5. [Fe(CN)₆]^3– + N₂H₄ → [Fe(CN)₆]^4– + N₂ [Solution]

Frost (Oxidation State) Diagrams

Question 1
Predict the products from the following RedOx reactions using a Frost Diagram:

1. Ni²⁺ + Cu²⁺ [Solution]
2. VO²⁺ + Cr²⁺ [Solution]
3. CoO₂ + Cr³⁺ [Solution]
4. Ti³⁺ + H₃O⁺ [Solution]
5. H₂O + I₂ [Solution]