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QUESTION 1 The gas-phase dipole moment of the hydroxyl radical, •OH, is 1.66 D, and the bond length for this species is 97.1 pm. Use this information to calculate the percent ionic character of the O-H bond. 1- Charge in esu: 2- Charge in e- 3- Percent ionic character of the O-H bond:
Platinum(II) forms many complexes, amond them those with the following ligands. Give the formula and charge of the complex with two ammonia molecules and one oxolate ion(C2O4^2-).
A student determined the Kf (f as lower subscript) of t-butyl alcohol using tap water instead of distilled or deionized water. Describe the problems that might have been encountered. How would these problems affect the magnitude of Kf?
Assume the caffeine solution is 15 mg of caffeine per mL. A student used 5 mL of caffeine solution in both part A and part B. Crude yields was 68 mg from the dichloromethane extract and 47mg from the MTBE extract.
Use Coulomb's law to calculate the ionization energy in kj/mol of an atom composed of a proton and an electron separated by 138.00 pm
At this point in the titration the system reches equilibrium and therefore Qsp for silver chromate is equal to Ksp of silver chromate and Qsp for silver chloride is equal to Ksp for AgCl. 1. Cal the equilibrium concentration for the chromate ion [C..
A sample of white gold is 18.0 grams gold, 3.0 grams silver, 2.0 grams cobalt, and 1.0 gram platinum by mass. What is the percent of platinum in the sample
Ultraviolet light with a wavelength of 200nm is incident upon gold surface in a vacuum chamber. What is teh wavelength of the most energetic electrons that are ejected from the surface?
The value of delta H for the decomposition of gaseous sulfur trioxide to its component elements, 2SO3 (g) ---> 2S (s, rhombic) + 3O2 (g) is _____ kj/mol.
you are a manufacturer of antacids. you could use either mg (oh)2 or al(oh)3 in your formulation. you can buy either of these for $2.00 per pound.
If, in a separate experiment, one-four as much enzyme and twice as much substrate had been combined, how long would it take for the same amount (24 ?mol) of product to be formed
A cylinder with a moveable piston contains 0.90 mol of gas and has a volume of 342 mL. What will its volume be if an additional 0.22 of gas is added to the cylinder?
Indicate whether the solubility of carbon dioxide gas in water increases or decreases for each of the following. 1.) The temperature of the solution increases
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