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1.Give the MO designations for O2, O21-, O22-, O21+, and O22+. (b) Give the bond order in each case. (c) Match these species with the following observed bond lengths: 1.04 Å; 1.12 Å; 1.21 Å; 1.33 Å; and 1.49 Å.
2.Use Lewis formulas to depict the resonance structures of the following species from the valence bond point of view, and then sketch MOs for the delocalized systems. (a) NO31-, nitrate ion; (b) HCO31-, hydrogen carbonate ion (H is bonded to O); (c) NO21-, nitrite ion. Note: The valence bond point of view refers to the resonance structures while the MOs refer to the resonance hybrid.
Why was the titration performed by the addition of permanganate solution to oxalate solution and not the other way around? Why was the experiment performed at an elevated temperature?
Hydrobromic acid reacts with potassium carbonate to form potassium bromide,carbon dioxide , and water. Barney the incompetent lab tech accidently knocked a flask containing 255ml of 0.500 M hydrobromic acid onto the floor, and now he has to clean ..
Acetylenic fatty acids are found in many tropical plants. Compound C, C18H30O2, is one such compound; it absorbs 3 equivalents of H2 when treated with H2 over a Pd/C catalyst. Ozonolysis of compound C produces the following products:
Consider the following cell: Pt|H2(g, 0.670 atm)|H (aq, ? M)||Ag (aq, 1.00 M)|Ag(s) If the measured cell potential is 1.15 V at 25 °C and the standard reduction potential of the Ag /Ag half-reaction couple is 0.80 V, calculate the hydrogen ion con..
The equilibrium concentration of I2 is 0.0900M. What is the equilibrium constant, Kc , for the reaction at this temperature?
Consider the titration of 50.0 mL of 0.217 M hydrazoic acid (HN3) (Ka = 2.6 x 10-5) with 0.183 M NaOH. determine the pH of the solution before any NaOH is added ?
Determine the molality and molarity of a solution made by dissolving 445 g of NaBr in 2600 ml of water ?
Calculate work (in kJ) when 422 g iron (III) oxide (MM = 159.7 g/mol) reacts with excess carbon to produce carbon dioxide gas at 445 K:
Outline two different methods that could be used to prepare 2-methyl-2-butanol using a Grignard synthesis. Which method is the best? Explain
If you have 240.0 mL of water at 25.00 °C and add 100.0 mL of water at 95.00 °C, what is the final temperature of the mixture.
In chemical reactions the total number of moles of products must be the same as the total number of moles of reactants.
What mass of hydrogen can be produced from 2.90 g of aluminum and 14.0 g of HCl in the above unbalanced reaction?
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