The density of KBr is 2.75 g/ em3. The length of the edge of the unit cel is 654 pm. Is KBr SK, FCC, BOC?

Answered: Image /qna-images/answer/83d1f900-d2ed-44ab-88e3-55386390e53e.jpg

Answered: SC, FOC, BOC?

Chemistry: Matter and Change

1st Edition

ISBN:9780078746376

Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Publisher:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom

Chapter7: Ionic Compounds And Metals

Section: Chapter Questions

Problem 96A

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Similar questions

The radius of a rhodium atom is 134 pm. How many rhodium atoms would have to be laid side by side to span a distance of 2.58 mm?
In making computer chips, a 4.00-kg cylindrical ingot ofultrapure n-type doped silicon that is 5.20 inches in diameter issliced into wafers 1.12X10⁻⁴m thick.(a) Assuming no waste, how many wafers can be made?(b) What is the mass of a wafer (dof Si =2.34 g/cm³; Vof acylinder =πr²h)?(c) A key step in making p-n junctions for the chip is chemicalremoval of the oxide layer on the wafer through treatment withgaseous HF. Write a balanced equation for this reaction.(d) If 0.750% of the Si atoms are removed during the treatmentin part (c), how many moles of HF are required per wafer, as-suming 100% reaction yield?
The radius of a aluminum atom is 143 pm. How many aluminum atoms would have to be laid side by side to span a distance of 4.38 mm?
Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 79.66 g/mol and the atomic radius in atomic radius is 0.104 nm, calculate its theoretical density in g/cm3. NA = 6.022 x 1023 atoms/mo.
Some hypothetical metal has simple cubic crystal structure. If its atomic weight is 61.25 g/mol and the atomic radius in atomic radius is 0.174 nm, calculate its theoretical density in g/cm3. NA = 6.022 x 1023 atoms/mol.
Lithium metal has an atomic radius of 152 pm. The molar mass of lithium is 6.94 g/mol and Avogadro`s constant NA is 6.023 x 1023 /mol. What is the density of lithium metal in g/cm3?
The most common oxide of vanadium, V205, is used as a catalyst in manufacturing sulfuric acid H2 SO4. The density of vanadium is 6.00 3 g/cm. Express this in SI units ( 3 kg /m³). Density 3 kg/m³
3. Chromium forms a body centered cubic crystal. If the length of an edge is 2.884 angstroms, calculate the density (g/cm) and the radius of a chromium atom in angstroms.
In making computer chips, a 4.00-kg cylindrical ingot of ultrapure n-type doped silicon that is 5.20 inches in diameter is sliced into wafers 1.12x10-4 m thick. (a) Assuming no waste, how many wafers can be made? (b) What is the mass of a wafer (d of Si = 2.34 g/cm3; V of a cylinder = πr2h)? (c) A key step in making π-n junctions for the chip is chemical removal of the oxide layer on the wafer through treatment with gaseous HF. Write a balanced equation for this reaction. (d) If 0.750% of the Si atoms are removed during the treatment in part (c), how many moles of HF are required per wafer, assuming 100% reaction yield?
The radius of a tungsten atom is 137 pm. How many tungsten atoms would have to be laid side by side to span a distance of 1.99 mm?
A hypothetical metal has a theoretical density of 12.38 g/cm3. This metal adopts a cubic crystal structure with an edge length of 0.387 nm and atomic radius of 0.137 nm. Find the atomic weight of this metal in g/mol. NA = 6.022 x 1023 atoms/mol.
The radius of a lead atom is 175 pm. How many lead atoms would have to be laid side by side to span a distance of 3.22 mm?

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