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Cadmium telluride is an important material for solar cells.
(a) What is the band gap of CdTe?
(b) What wavelength of light would a photon of this energy correspond to?
(c) Draw a vertical line at this wavelength in the figure shown with Exercise 12.69, which shows the light output of the sun as a function of wavelength.
(d) With respect to silicon, does CdTe absorb a larger or smaller portion of the solar spectrum?
What is the mass percentage of iron in a sample if titration of 1.2284g of the sample requires 57.91 mL of .1018M of Ce(NH4)2(NO3)6 for complete reaction?
a student carried out the experiment but did not follow the directions exacly as written. What effect would the following actions have on the experiment ?
Given a column of air with a pressure of 1.57 x 10^5 Pa and an area of 1.12 m^2 and given that the acceleration due to gravity is 9.8 m/s^2, what is the mass of this column
Calculate the mass of ferrous ammonium sulfate you would need to add to a 100.00 mL volumetric flask to make a solution that is 59 ppm in Fe. Then, stock solution A is prepared by dissolving 183.5 mg of ferrous ammonium sulfate in water and diluti..
0.498g sample of sodium carbonate requires 23.5 mL of a sulfuric acid solution o reach the end point for the reaction.
A quantity of n2 occupies a volume of 1.0L at 310K and 1.4 atm. The gas expands to a volume of 3.3L as the result of a change in both temperature and pressure. Find the density of the gas at these new conditions.
Question- Average wind speed of 4m/s, contaminant emissions of 0.01 kg/s and an effective stack height of 20m. Find the ground level concentration 200 m directly downwind from the stack.
A single strand of natural silk may be as long as 4.03 x 10^3 m. Convert this length into miles.
A particular element M has a heat capacity of 0.36 JgK and it forms an oxide that contains 2.9 grams of M per gram of oxygen What is the molar mass of the metal
The Ksp of AgCl is 1.6 x 10-10. What is the solubility of AgCl in 0.010 M AgNO3? Give your answer using scientific notation and to 2 significant figures
Chemical changes be be both useful and destructive to humanitys purposes. Cite a few examples of each kind of change from your own experience. Also give evidence from observation that each is indeed a chemical change and not a phsycial change
the heat of vaporization of isopropyl alcohol c3h7oh is 42.1 kjmol. how many grams of water at 0oc could be frozen to
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