Property of materials find the density
Property of Materials Find the density for germanium (Ge) semiconductor atoms give that its lattice constant a-5.66Å (Angstrom) and atomic weight is 72.59 g/mole.
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A large flask with a volume of 936 mL is evacuated and found to have a mass of 134.66g. It is then filled to a pressure of 0.967atm at 31 degrees C with a gas of unknown molar mass and then reweighed to give a new mass of 153.81g. What is the mola
A gaseous mixture of O2 and Kr has a density of 1.102 g/L at 420 torr and 300. K. What is the mole percent O2 in the mixture?
What total volume of gas measured at 29°C and 774 torr, is produced when 1.05 g of NaHCO3(s) is completely converted to Na2CO3(s)?
A wastewater contains 8.1 mg/L phosphate ions and is treated with an 18 mg/L alum solution. Calculate the mass of inorganic sludge (aluminum precipitates) produced in one day in a plant treating 22,000 m3 of wastewater.
If a 2.6 reaction vessel initially contains 725 of cyclopropane at 485 , how long will it take for the partial pressure of cylclopropane to drop to below 105 ?
What is the first step in drawing the Lewis structure for a molecule or ion
Tablets of KI were distributed to people living around Chernobyl one week after the nuclear reactor explosion occurred, to help flush radioactive 131I isotope out of their bodies. 131I has a half-life of 8 days.
Using the time independent one dimensional Schrodinger equation, find the expression of the allowed energy levels for an electron in infinite potential well of width Δz= L (i.e. solve the differential equation and apply B.C. to obtain En
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