Calculate fraction of atom sites that are vacant for lead
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What is the molar concentration of Cl- in a solution prepared by mixing 25.0 ml of 0.025 M NaCl with 35.0 mLof 0.05 m BaCl2 ? What is the pCl for the mixture?
Potassium reacts with oxygen to make potassium oxide,K2O. What is the maximum mass (g) of K2O(s)that could be prepared from 8.24 g of K(s) and 2.64 g ofO2(g)?
The force in the cable is F= (3200 t^2) N, where t is in seconds. (Incline is a 17-8-15 triangle) If the car has an initial velocity v1= 2m/s at s= 0 and t= 0, determine the distance it moves up the plane when t= 3s.
Air flowing over the car's wing exerts a downward-pointing force (called the downforce) of 3200 N on the car. (a) What is the coefficient of static friction between the track and the car's tires?
Calculate the fraction of atom sites that are vacant for lead at its melting temperature of 327°C (600 K). Assume an energy for vacancy formation of 0.55 eV/atom.
Calculate the energy for vacancy formation in silver,given that the equilibrium number of vacancies at 800°C (1073K) is 3.6 x 10^23 m-3. The atomic weight and density (at800°C) for silver are, respectively, 107.9 g/mol and 9.5g/cm3
Why is the initial inlet line pressure below atmospheric pressure in both the cavitation and air entrainment tests? Explain the reason the pressure drops in the pump inlet line as the cavitation test value is closed.
Calculate the fraction of lattice sites that are Schottky defects for cesium chloride at its melting temperature(645oC). Assume an energy for defect formation of 1.86eV.
A radio telescope consists of two antennas separated by a distance of 250.0 m. Both antennas are tuned to a particular frequency, such as 55.0 MHz.
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