Answered: Calculate the density of aluminum,…

Calculate the density of aluminum, given that it has an fcc crystal structure,an atomic radius of 0.143 nm, and an atomic mass of 26.98 g/mole.

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter20: Chemistry Of Selected Transition Elements And Coordination Compounds

Section: Chapter Questions

Problem 91QRT

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Concept explainers

Crystal Lattices and Unit Cell

Consider a crystal. The regular and repeating pattern of constituent particles is the most distinguishing feature of crystalline solids. A crystal lattice is formed when these particles are replaced with representative points. The three-dimensional arrangement of constituent particles is known as a crystal lattice. Unit cell is that the smallest portion of a space lattice which when repeated in several directions, generate the whole lattice. Unit cell is a building block of a lattice. It is the smallest unit of cell.

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Calculate the density of aluminum, given that it has an fcc crystal structure,
an atomic radius of 0.143 nm, and an atomic mass of 26.98 g/mole.

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Silicon has a face-centred cubic structure with two atoms per lattice point, just like diamond. At 25°C, a = 543.1 pm. What is the density of silicon? What is the Si-Si bond length?
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Geosciences are very versatile. This fact rests on the finding that the number of silicate minerals that make up this planet is huge. a) By means of a reaction sequence based on Lewis structures show the step-by-step formation of a tricyclosilicate starting from silicic acid, Si(OH)4! b) Explain based on your answer from Part a) why this already offers the chance to hundreds of different minerals!
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Apatite is a main mineral source for the production of phosphorus. Calculate the atomic and mass percent of P in the mineral apatite.
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