Barium oxide (BaO) crystallizes in a structure in w are in a face-centered cubic lattice and the Ba²+ i octahedral holes. What is the number of Ba²+ ions 2 4 V = a³ = (4.47x10-8 cm)³ = 8.93x10-23 cm³ = 4.72x10¯²²g x 6.022x10²³ 5.28 g cm formul m 3 8

Q: The lattice constant of a face-centered-cubic structure is 4.75 Å. Determine the vol- ume density of…

A: Since you have posted multiple questions, we will solve first one for you. To get remaining…

Q: Use the References to access important values if needed for this question. The substance cesium is…

A:

Q: 2- Below information is given for nickel. Atomic weight of Ni: 58.7 g/mol Melting temperature: 1455…

A: A phase diagram shows the range of existence of phases in materials with more than one component.…

Q: A hypothetical element, Ny, forms a face-centered cubic lattice with an atomic radius of 165 pm.…

A: Consider the given information is as follows; Molar mass of Ny (M) = 112.024 g/mol    Face-centered…

Q: 31. The data table below represents the properties determined by the analysis of substances A, B, C,…

A: Note: You have uploaded 2 questions simultaneously, but i can solve only first one (as per…

Q: -9 Silicon used in computer chips must have an impurity level below 10 (that is, fewer than one…

A: No. of boron atoms = 1.8*1013Edge length(a) = 543 pm = 5.43*10-8 cmNo. of Si atoms in a cubic unit…

Q: A (made-up) metal has a face-centered cubic crystal structure. Its density is 20.5 g/cm 3. Its molar…

A: Given, Structure: FCC (Face centred cubic lattice) Density (d) = 20.5 g/cm3 Molar mass of metal =…

Q: The molar mass of a metal element is 296 g/mol and the density of its solid is 4.05 g/cm3. This…

A: the density of the crystal can be calculated from the mass contained in unit cell and volume

Q: y are there no more than crystal systems ? What are quasicrystals

A:

Q: Which statement is true? Statement 1: Sublimation refers to the phase transition in which matter…

A: Given statements are : Statement 1: Sublimation refers to the phase transition in which matter…

Q: The ionic compound, Csl, forms a body centered cubic structure where the anions occupy the corners…

A:

Q: The properties of several unknown solids were measured. Solid Melting point A >1000 °C B 850 °C C…

A: Molecular solids  It is the solid which is held by van der Waals forces. These solids are soft,…

Q: Question 2 a) Faris received a task on indicating which one is diamond or cubic zirconia. They both…

A: Given: We have to differentiate between diamonds and cubic zirconia. Also we have to calculate the…

Q: A certain solid metallic element has a density 7.87 g/cm and a molar mass of 55.85 g/mol. It…

A: Given: The density of the metallic element = 7.87 g/cm3 The molar mass of the metal = 55.85 g/mol…

Q: 2. Lead has a face centered cubic lattice with all atoms at the lattice points and a unit cell edge…

A: The crystal lattice formed from the repetition of cube shaped unit cells in three dimensions is…

Q: Which of the following might be best described by the following set of properties? 1. white solid…

A: The nature of constituent atoms of a molecule, type of bonding between them and charge on atoms…

Q: ridium forms a face-centered cubic lattice, and an iridium atom has a radius of is 1.357 x 10-8 cm.…

A:

Q: tyIron has an atomic weight of 55.85 g/mol and a density of 7.86 g/cm3. It crystallizes in a cubic…

A:

Q: >Explain why the viscosity of liquid sulfur increases with increasing temperature initially, but…

A: The liquid S viscosity increases as temperature increases initially but on further temperature it…

Q: Pb, is used in solders and as radiation shield. It adopts the face centered cubic unit structure…

A:

Q: 11- An unidentified metal crystallizes in a body-centered cubic lattice with an edge length of 351…

A: The density of the unit cell is given by, Density = (M)(Z)(a3)(NA) where M is the molar mass, Z is…

Q: Platinum nanoparticles of diameter ∼2 nm are important catalysts in carbon monoxide oxidation to…

A: Given: Diameter of the nanoparticles=2 nm Edge length=3.924A° To find: The number of platinum atoms

Q: Silver crystallizes in the face-centered cubic (FCC) lattice. The density of the metal is 10500…

A: we have to calculate the radius of silver atom

Q: What is the planar density in atoms/nm2 in plane (200)? Plane (200)

A: The correct option is C : 12.19 atoms/nm2

Q: Linear and Planar Densities Example 7 Calculate the planar atomic density on the (110) plane of the…

A:

Q: Metallic chromium has a body- centered cubic structure (all atoms at the lattice points) and a…

A: For BCC,  a= 4r3 were,  a = edge length r = radius   Total volume  of cube = a3 Total volume of BCC…

Q: adwa Some hypothetical metal has a simple cubic crystal structure. If its atomic weight is 61.25…

A: r = 0.174nm For simple cubic crystal , a= 2r      Therefore a = 2×0.174                    = 0.348nm…

Q: Q2// To calculate the surface density of atoms on a particular plane in a crystal. Consider the…

A:

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.