What is the composition of pb and sn in atom percent
For an alloy that consists of 28.9 wt% Pb and 71.1 wt% Sn, what is the composition (a) of Pb (in atom percent), and (b) of Sn (in atom percent)? The atomic weights for Pb and Sn are 207.2 and 118.69 g/mol, respectively.
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Germanium forms a substitutional solid solution with silicon. Compute the weight percent of germanium that must be added to silicon to yield an alloy that contains 2.43 × 1021 Ge atoms per cubic centimeter.
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On April 2, Nancy Hansel uses her J. C. Penney Company credit card to purchase merchandise from a J.C. Penney store for $1,500. On May 1, Hansel is billed for the $1,500 amount due.
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What is the concentration in kilograms of silicon per cubic meter of alloy? Assume that the densities for iron and silicon are, respectively, 7.87 and 2.33 g/cm3.
Two circular disks spaced 0.50mm apart form a parallel-plate capacitor. Transferring 1.80x10^9 electrons from one disk to the other causes the electric field strength to be 2.50x10^5 N/C. What are the diameters of the disks?
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Molybdenum forms a substitutional solid solution with tungsten. Calculate the concentration (in weight percent) of molybdenum that must be added to tungsten to yield an alloy that contains 1.16 x 1022 Mo atoms per cubic centimeter.
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