Inorganic Chemistry
Questions & Answers
QUESTION 3: In question 2 you worked with octahedral complex anions of [VCl₂(O₂CCO₂)₂]³ in this question you are asked to consider trigonal prismatic [VCl₂(0₂CCO2)2]³ complex anions. a) Draw 2 distinguishable isomers of the [VCl₂(O₂CCO2)2]³ complex with trigonal prismatic geometry and determine their point groups. You must use dashes and wedges correctly. Indicate all atoms including the ligand atoms. i. Isomer 3 (trigonal prismatic): 3-dimensional structure: Point group:
3. Which would you expect to have a higher boiling point. A molecule with a large molecular dipole or a molecule with no molecular dipole. Explain your choice
(5pts)Complete the table with the positive ion , negative ion, and the name for the compounds. Use the subscript(Xa) and superscript (X2) buttons as needed.
a) The visible region of the electronic absorption spectrum for compound 1 contains no d-d bands. In contrast, the visible region of the electron absorption spectrum for compound 2contains two d-d bands. i.What is the oxidation state of titanium in compound 1 andcompound 2? ii. Identify the number of d electrons for the metal ions inthese two compounds? iii. Explain the differences in the number d-d bands observed in the electron absorption spectra of compounds 1 and 2.Your answer should include a relevant energy level diagram. iv. Compound 1 is stable over a wide range of pH (from pH 5to 12). Would you expect compound 2 to be stable over such a wide range of pH? Explain your answer. Hint:consider the hard-soft character of Ti in both compounds. b) Compound 3, an amino acid, exists in the form shown belowat pH 2. The pK values for 3 are 2.3 (-COOH) and 9.6 (-NH3+). i. Draw the form of compound 3 at pH 11 ii. What is the charge of the complex formed between threemolecules of compound 3 and one Zn ion at pH 11. ii Draw, by hand, the two geometric isomers of the complexion formed between three molecules of 3 and one Zn2+ ionat pH 11. Your answer should include the complete structure of the ligand when it is complexed to Zn*. Paste the scanned image, or photograph, of the complex ions you have drawn into your answer. iv. Would you expect the equivalent complexes formed between Cu2+ and 3 to be more less thermodynamically stable than the Zn2+ complexes? Explain your answer.(2 marks
Complete the table with the positive ion, negative ion, and the formula for the compounds. Use the subscript(X2) and superscript (X) buttons as needed.
Click the reset button.Keep the "bent" arrangement of atoms and set the electronegativities of A and C to high and B to middle. Click to show the bond dipoles,molecular dipoles and partial charges. Draw the bond dipoles on the bonds in the diagram Show the overall molecular dipole in the diagram Draw the partial charge symbols on the diagram.
2. Consider an N₂ molecule in its first excited electronic state, that is, when an electron in the highest occupied molecular orbital is promoted to the lowest unoccupied molecular orbital. (a) Identify the molecular orbitals involved and sketch a diagram for the transition. (b) Compare the bond order and bond length of N₂ with N₂, where the asterisk denotes the excited molecule. (c) Is N₂ diamagnetic or paramagnetic? (d) When N₂ loses its excess energy and converts to the ground state, it emits a photon of wavelength 470 nm, which makes up part of the auroras lights. Calculate the energy difference in kJ/mol between these levels.
Click the keep the box for bond dipole checked and check the boxes to show the partial charges and the bond character Keep the electronegativity of A at low and increase and decrease the electronegativity of atom B. Observe the arrow, partial charge and bond character. Fill in the following observation As the electronegativity of atom B increases the... arrow partial charges bond character
QUESTION 1: You have prepared for the first time ever the XeCl3FO₂ molecule. Naturally the molecule can only be prepared at very low temperatures and tends to undergo instantaneous decomposition into its elements at elevated temperatures. a) You are storing 2 grams of XeCl3FO₂ in a sealed flask at 111 Kelvin. You decompose XeCI-FO₂ into its elements by raising the temperature in sealed flask to 20°C. (i) Write down the decomposition reaction. (ii) Calculate the minimum volume of this flask (in units of liters) in order to keep the pressure at 20°C below 3 bar.
