Chapter 10, Problem 60AP

Crystal structure represents the manner in which atoms or ions are arrayed in space. It is defined in terms of the unit celI (1) and the atom (2) within the unit cell. (1) = direction, (2) = sizes. (1) = plane, (2) = positions. (1) = geometry, (2) = positions. (1) = geometry, (2) = sizes.

A 5.30 g sample of solid MgSO, · 7H,0 was heated such that the water turned to steam and was driven off. Assuming ideal behavior, what volume would that steam occupy at 1.00 atm and 100.0 °C? V =

At room temperature, the edge length of the cubic unit cell in elemental silicon is 5.431 Å, and the density of silicon at the same temperature is 2.328 g cm-3 . Each cubic unit cell contains eight silicon atoms. Using only these facts, perform the following operations.(a) Calculate the volume (in cubic centimeters) of one unit cell.(b) Calculate the mass (in grams) of silicon present in a unit cell.(c) Calculate the mass (in grams) of an atom of silicon.(d) The mass of an atom of silicon is 28.0855 u. Estimate Avogadro’s number to four significant figures.

1.Indium has a tetragonal unit cell for which the a and c lattice parameters are 0.459 and 0.495 nm, respectively. (a) If the atomic packing factor and atomic radius are 0.693 and 0.1625 nm, respectively, determine the number of atoms in each unit cell. (b) The atomic weight of indium is 114.82 g/mol; compute its theoretical density.

A 7.40 g sample of solid Ni(CN), ·4H,0 was heated such that the water turned to steam and was driven off. Assuming ideal behavior, what volume would that steam occupy at 1.00 bar and 100 °C? It may be useful to consult the periodic table. volume: L

A metal crystallizes in the face-cente red cubic crystal structure with a unit cell edge of 4.08 x 10 -8 cm. The density of the metal is 19.3 g/cc. (a) What is the mass, in grams, of a single atom of this element? (b) What is the atomic weight of the element (g/mol). (c) What is the radius, in cm, of an atom of the element?

What is the vapor pressure of SiCl4 in mmHg at 27.5∘C? The vapor pressure of SiCl4 is 100 mmHg at 5.4∘C, and ΔHvap = 30.2 kJ/mol.

In terms of shape, how does water appear on a molecular level at lower temperature? O tridimensional network O honeycomb tetrahedral cell O simple cubic shape

A metal crystallizes in the face-centered cubic crystal structure with a unit cell edge of 3.52 x 10 -8 cm.The density of the metal is 8.90 g/cc. (a) What is the mass, in grams, of a single atom of this element? (b) What is the atomic weight of the element (g/mol). (c) What is the radius, in cm, of an atom of the element?