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InSb is a semiconductor whose band gap is 16.4 kJ/mol at room temperature. Explain what is the wavelength of the radiation corresponding to this band gap?
For a substance such as carbon dioxide or water, calculate and graph the phase boundaries in the solid vapor, solid liquid, and liquid vapor regions
A current of 5.64 A is pass through a Ni(NO3)2 solution. How long (in hours) would this current have to be applied to plate out 8.80 g of nickel
Stock solution A is prepared by dissolving 165.1 mg of ferrous ammonium sulfate in water and diluting to volume in a 500-mL volumetric flask. Calculate the concentration of iron, in ppm, in stock solution A.
How many (a) kilometers, (b) Meters (c) centimeters, ad (d) millimeters are there in 0.800 miles calcuted to the correct numbers of significant figures
An aerosol can has a gas pressure of 144 kPa at 293 K. Calculate the pressure when the can is heated to 425 K.
How might the yield of product be affected by adding twice as much water as is specified, while keeping the quantities of the other reagents the same
a vessel of volume 22.44 dm3 contains 2.0 mol h2 and 1.0 mole of n2 at 273.15 k initially. all the h2 reacted with
Calculate E°cell and indicate whether the overall reaction shown is spontaneous or nonspontaneous.
two liquids form a solution and release a quantity of heat. how does the pressure above the solution compare to that
The means of the reported resultsare 68.5% C and 4.88% H. At the 95% confidence level, is there any indication of systematic error in either analysis
Given that the solubility of a compound X is 0.60 g/100 mL in ether and 0.12 g/100 mL in water. (a) What is the amount of X in mg that is extracted from a solution containing 60 mg of X in 60 mL of water
After that 1.00mL of a 10.9mM Lithium standard was added to 9.00mL of serum as well as this spiked serum gave an intensity reading of 893 units. Explain what is the original concentration of Li in the serum
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