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What is maximum light wavelength (nm) to be absorbed for creating electron-hole pairs in semiconducting material cadmium telluride (CdTe)? CdTe has a band gap of 1.44 eV.
what is the boiling point of a solution containing 2.33 grams of C8H10N4O2 , dissolved in 15 grams of benzene?
Newton's third law of motion can be stated like this: "For every action, there is an equal and opposite reaction." How are Le Chatelier's Principle and Newton's third law similar? How are they different?
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?
A 50.00 ml sample of water was treated as above and the I2 titrated with 0.01136 M Na2S2O3, of which 8.11 ml were required to reach the end point. Determine the concentration of the dissolved O2 in M (moles/L) and ppm (mg/L).
Environmental magazine about the success of global initiatives in solving environmental concerns, using the Montreal Protocol and ozone depletion as a focus.
Please consider the reaction of 0.22M 2-iodopropane with tetramethylammonium fluoride (TMAF) in DMSO to give propylene. The reaction rate in the presence of 0.1M TMAF is 0.002 M/s, but it is 0.0058 M/s in the presence of 1.2M TMAF.
A student weighed 0.0961 g of calcium carbonate (FW: 100.08 g/mol) into a 100-mL volumetric flask, dissolved the powder using nitric acid, and diluted to the mark with 0.2% nitric acid.
What was the wavelength of the second photon emitted?
sample of H20 with a mass of 46.0 grams has a temperature of -58.0 degrees Ceslius. How many joules of energy are necessary to heat the steam from 100.0 degrees celsius to 114.0 degrees
What mass of sucrose should be combined with 461 g of water to make a solution with an osmotic pressure of 8.85 atm at 310 K? (Assume the density of the solution to be equal to the density of the solvent.)
A cube of metal has a mass of 0.321 kg and measures 3.05 cm on a side. Calculate the density and identify the metal.
sulfate pentahydrate are made into a solution with 512.441 g of water. What is the molality of the copper sulfate solution?
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