Principles of Modern Chemistry
8th Edition
ISBN: 9781305079113
Author: David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Question
Chapter 10, Problem 44P
Interpretation Introduction
Interpretation:Whether the temperature is higher or lower than 132 oC when the white tin (1.00 atm cooled below 132 oC) changes to gray tin and some white tin is compressed to a pressure of 2.00 atm should be explained with reason.
Concept introduction:Matter can exist mainly in three states; solid, liquid and gas. These phases can be interconverted into one another with the help of application of pressure and temperature.
The phase diagram is used to represent the phase change due to change in the pressure and temperature.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
adwa Some hypothetical metal has a 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/mo.
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.
A piece of solid lead weighing 45.2 g at a temperature of 317 °C is placed in 452 g of liquid leadat a temperature of 371 °C. After a while, the solid melts and a completely liquid sample remains. Calculate the temperature after thermal equilibrium is reached, assuming no heat loss to the surroundings. The enthalpy of fusion of solid lead is ΔHfus = 4.77 kJ/mol at its melting point of 328 °C, and the molar heat capacities for solid and liquid lead are Csolid = 26.9 J/mol K and Cliquid = 28.6 J/mol K.
Chapter 10 Solutions
Principles of Modern Chemistry
Knowledge Booster
Similar questions
- (b) Using the Crystallographer's formula to determine the density (in g/cm³) of Po: ρ = Σ Ζ * Μ Vell* N You must know that a primitive cubic cell has Z = 1 Since Po is a metal, the value of "i" = 1, since it's the only entity! MM of Po= 208.998 g/mol Vcell (in cm³) = a³ Vcell (3.36 x 10-8 cm)³ = 3.793 x 10-23 cm³ N = 6.022 x 1023 atoms/mol Thus: p = (1 atom/cell) (208.998 g/mol) = 9.16 g/cm³ (3.793 x 10-23 cm³) (6.022 x 1023)arrow_forwardPhase changes occur between different solid forms, as well as from solid to liquid, liquid to gas, and solid to gas. When white tin at 1.00 atm is cooled below 13.2°C, it spontaneously changes (over a period of weeks) to gray tin. The density of gray tin is less than the density of white tin ( 5.75 g cm^-3 vs 7.31 g cm^-3 ). Some white tin is compressed to a pressure of 2.00 atm. At this pressure, should the temperature be higher or lower than 13.2°C for the conversion to gray tin to occur? Explain your reasoning.arrow_forward1) Palladium (electron configuration is [Kr]4d¹) crystallizes in a face-centered cubic unit cell. its density is 12.0 g/cm³. (NA = 6.02 x 10²³) (a) What is the total mass of palladium atoms contained within one unit cell? (b) Calculate the atomic radius (r) of Pd.arrow_forward
- Explain (i) The basis of similarities and differences between metallic and ionic crystals.arrow_forwardC60 fullerenes crystallizes into a cubic close-packed structure known as fullerite, with a lattice constant of a=14.17 Å. Calculate the density of fullerite in units of g/cm³.arrow_forwardA 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?arrow_forward
- From two moles of molten tin whose temperature at a constant pressure of latm has quickly reached 495k. 1771 joules are heated. Determine how many moles of tin have solidified under these conditions (pressure 1atm and temperature 495k)? ΔΗ T0T0 Jlmel Imon =505 K cp 12,5 26 x 1o T JImol 2,2x10 T Jmolarrow_forwardPure gold crystallizes in a face-centered cubic unit cell with an edge length of 4.08 Å. The alloy called 18-karat gold consists of 75% Au, 8.0% Ag, and 17% Cu by mass. What are the subscripts in the empirical formula of 18-karat gold (Au(x)Ag(y)Cu(z)) to two significant digits?arrow_forwardAt 25 °C gallium is a solid with a density of 5.91 g/cm^3. Its melting point, 29.8 °C, is low enough that you can melt it by holding it in your hand. The density of liquid gallium just above the melting point is 6.1 g/cm3. Based on this information, what unusual feature would you expect to find in the phase diagram of gallium?arrow_forward
- A piece of solid aluminum weighing 32.6 g at a temperature of 582 °C is placed in 326 g of liquid aluminum at a temperature of 663 °C. After a while, the solid melts and a completely liquid sample remains. Calculate the temperature after thermal equilibrium is reached, assuming no heat loss to the surroundings. The enthalpy of fusion of solid aluminum is ΔHfus = 10.8 kJ/mol at its melting point of 600 °C, and the molar heat capacities for solid and liquid aluminum are Csolid = 24.3 J/mol K and Cliquid = 29.4 J/mol K.arrow_forwardHW(2 questions) The lattice constant of a face-centered-cubic structure is 4.75 Å. Determine the vol- ume density of atoms. (_ɔ 01 The volume density of atoms for a simple cubic lattice is 3 x 1022 cm-³. Assume that the atoms are hard spheres with each atom touching its nearest neighbor. Determine the lattice constant and the radium of the atom. (Ỵ 19'1 = d 'Y = ©p °suy)arrow_forwardNickel exhibits a cubic crystal structure with a lattice constant (a) value of 0.353 nm. It has an atomic weight of 58.70 g/mol and a density of 8.83 g/cm3. (a) What is the crystal structure of Ni? (b) Determine its atomic radius in nm. Present your answer in three (3) decimal places.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning