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Benzene exhibits primary and secondary UV bands. The band at 185nm appears to correspond to the Homo-Lumo transition described using a Frost circle. What is the transition that represents the forbidden bands at 254 and 204 nm (in simple terms).
It is important to know if a particular molecule is composed of elements with different electronegativities as well as the structure of the particular molecule to explain the physical properties of the molecule.
Calculate the mass percent of a solution that is prepared by adding 64.4 g of NaOH to 485 g of H2O
An aerosol spray can with a volume of 270 ml contains 3.0 g of propane gas as propellant. what is the pressure in atms if the can is 20 degrees celsius?
A solution contains 0.10 M Ca2+ and 0.10 M Mg2+. What pH range would result in only Mg(OH)2 precipitating? Ksp for Ca(OH)2 is 6.5 ´ 10-6 and for Mg(OH)2 is 7.1 ´ 10-12.
an aqueous cacl2 solution has a vapor pressure of 81.1 mmhg at 50 c. the vapor pressure of pure water at this
A 1.245 gram sample of a compound containing barium and oxygen was dissolved in hydrochloric acid to give a solution of barium ion, which was then completely precipitated out with an excess potassium chromate to give 2.012 grams of barium chromate..
The mass of an object is described in what
Given Data: average number of drops/mL = 73.0; overall average diameter of oleic acid film = 38.0 cm. Use this data to calculate following:
As mentioned in the text, Ni3Al is used in the turbines of aircraft engines because of its strength and low density. Nickel metal has a cubic close-packed structure with a face-centered cubic unit cell
What did the student do wrong? If the solution had been prepared correctly to the desired 1.0 M concentration, what volume of this stock should be diluted to prepare 100.0 mL of a 1.0 mM working solution?
Explain a current of 4.54 A is pass through a Pb(NO3)2 solution for 1.50 hours. Explain how much lead is plated out of the solution
Presume 12.0 g of carbon (C) reacts with 73.0g of sulfur (S) to give 76.0 g of the compound carbon disulfide (CS2). In the process, all the carbon gets used up however some elemental sulfur is left over.
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