Nickel has a face-centered cubic cell,and its density is 8.90 g/cm3.What is the radius (in pm)of a nickel atom? (The molar mass of nickel is 58.69 g/mol)

A) 62.3 pm B) 88.1 pm C) 125 pm D) 249 pm E) 535 pm A) 62.3 pm B) 88.1 pm C) 125 pm D) 249 pm E) 535 pm

Strontium oxide has a face centered cubic unit cell of oxide ions with the strontium ions in octahedral holes.If the radius of Sr2+ is 127 pm and the radius of O2- is 135 pm,what is the density of strontium ions oxide? (100 cm = 1 × 1012 pm)

A) 0.209 g/cm3 B) 1.20 g/cm3 C) 2.39 g/cm3 D) 4 g/cm3 E) 4.78 g/cm3 A) 0.209 g/cm3 B) 1.20 g/cm3 C) 2.39 g/cm3 D) 4 g/cm3 E) 4.78 g/cm3

Exam 13: The Solid State

Above a substance's _____ temperature,it is not possible to compress the substance into the liquid phase.If enough pressure is applied the substance will become a supercritical fluid.

(Short Answer)

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Question 41

On the phase diagram below,which point corresponds to conditions where only the gas phase exists?

(Multiple Choice)

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Question 42

Calcium sulfide has a face-centered cubic unit cell with calcium ions in octahedral holes.How many ions of each element are contained in each unit cell?

(Multiple Choice)

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Question 43

A salt with a 1:1 ratio of anions to cations may pack in a face-centered cubic unit cell with the anions at the lattice points and the cations occupying one-half of the _____ holes.Zinc sulfide is an example of this structure.

(Short Answer)

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Question 44

What process occurs when the temperature of a substance at Point A is increased (at constant pressure)until the substance is at Point B?

(Multiple Choice)

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Question 45

Magnesium sulfide (molar mass 56.37 g/mol)has a face-centered cubic unit cell with magnesium ions in octahedral holes.The ionic radii of magnesium ions and sulfide ions are 79 pm and 184 pm,respectively.What is the density of MgS (in g/cm³)?

(Multiple Choice)

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Question 46

If an ionic compound with the formula MX₂ forms a face-centered cubic unit cell with the cations (M²ⁿ⁺)at the lattice points,the anions (Xn^-)will occupy:

(Multiple Choice)

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Question 47

Which of the following elements might be used as a dopant in a silicon host to create a p-type semiconductor?

(Multiple Choice)

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Question 48

A low-melting solid readily dissolves in water to produce a nonconducting solution.The solid is most likely a(n)_____.

(Multiple Choice)

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Question 49

Nickel has a face-centered cubic cell,and its density is 8.90 g/cm³.What is the radius (in pm)of a nickel atom? (The molar mass of nickel is 58.69 g/mol)

(Multiple Choice)

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Question 50

Lithium chloride crystallizes in a face-centered cubic unit cell with chloride ions occupying the lattice points and lithium ions occupying octahedral holes.How many chloride ions surround each lithium ion in LiCl?

(Multiple Choice)

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Question 51

Polonium (atomic mass 209.0 g/mol)crystallizes in a primitive cubic unit cell.If the density of polonium is 9.15 g/cm³,what is the radius of a polonium atom (in pm)?

(Multiple Choice)

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Question 52

What is the length of the diagonal (in atomic radii)along the face of a face-centered cubic unit cell?

(Multiple Choice)

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Question 53

For a metal that crystallizes in a body-centered cubic unit cell,what percentage of the space in the cell is occupied by the metal atoms?

(Multiple Choice)

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Question 54

Cesium bromide crystallizes in a primitive cubic unit cell with bromide ions at the lattice points.The cesium ions occupy cubic holes.How many bromide ions surround each cesium ion in cesium bromide?

(Multiple Choice)

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Question 55

Gold (atomic mass 197 g/mol),with an atomic radius of 144.2 pm,crystallizes in a face-centered cubic lattice.What is the density of gold?

(Multiple Choice)

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Question 56

Elements that have their highest energy electrons in a filled band of molecular orbitals,separated from the lowest empty band by an energy difference much too large for electrons to jump between bands,are called _____.

(Multiple Choice)

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Question 57

Strontium oxide has a face centered cubic unit cell of oxide ions with the strontium ions in octahedral holes.If the radius of Sr²⁺ is 127 pm and the radius of O^2- is 135 pm,what is the density of strontium ions oxide? (100 cm = 1 × 10¹² pm)

(Multiple Choice)

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Question 58

Which process requires the greatest endothermic change in enthalpy for water?

(Multiple Choice)

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Question 59

Iron crystallizes in a body-centered cubic lattice.If the radius of iron is 126 pm,what is the unit cell edge length?

(Multiple Choice)

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Question 60

Showing 41 - 60 of 62

Exam 13: The Solid State

Above a substance's _____ temperature,it is not possible to compress the substance into the liquid phase.If enough pressure is applied the substance will become a supercritical fluid.

On the phase diagram below,which point corresponds to conditions where only the gas phase exists?

Calcium sulfide has a face-centered cubic unit cell with calcium ions in octahedral holes.How many ions of each element are contained in each unit cell?

A salt with a 1:1 ratio of anions to cations may pack in a face-centered cubic unit cell with the anions at the lattice points and the cations occupying one-half of the _____ holes.Zinc sulfide is an example of this structure.

What process occurs when the temperature of a substance at Point A is increased (at constant pressure)until the substance is at Point B?

Magnesium sulfide (molar mass 56.37 g/mol)has a face-centered cubic unit cell with magnesium ions in octahedral holes.The ionic radii of magnesium ions and sulfide ions are 79 pm and 184 pm,respectively.What is the density of MgS (in g/cm3)?

If an ionic compound with the formula MX2 forms a face-centered cubic unit cell with the cations (M2n+)at the lattice points,the anions (Xn-)will occupy:

Which of the following elements might be used as a dopant in a silicon host to create a p-type semiconductor?

A low-melting solid readily dissolves in water to produce a nonconducting solution.The solid is most likely a(n)_____.

Nickel has a face-centered cubic cell,and its density is 8.90 g/cm3.What is the radius (in pm)of a nickel atom? (The molar mass of nickel is 58.69 g/mol)

Lithium chloride crystallizes in a face-centered cubic unit cell with chloride ions occupying the lattice points and lithium ions occupying octahedral holes.How many chloride ions surround each lithium ion in LiCl?

Polonium (atomic mass 209.0 g/mol)crystallizes in a primitive cubic unit cell.If the density of polonium is 9.15 g/cm3,what is the radius of a polonium atom (in pm)?

What is the length of the diagonal (in atomic radii)along the face of a face-centered cubic unit cell?

For a metal that crystallizes in a body-centered cubic unit cell,what percentage of the space in the cell is occupied by the metal atoms?

Cesium bromide crystallizes in a primitive cubic unit cell with bromide ions at the lattice points.The cesium ions occupy cubic holes.How many bromide ions surround each cesium ion in cesium bromide?

Gold (atomic mass 197 g/mol),with an atomic radius of 144.2 pm,crystallizes in a face-centered cubic lattice.What is the density of gold?

Elements that have their highest energy electrons in a filled band of molecular orbitals,separated from the lowest empty band by an energy difference much too large for electrons to jump between bands,are called _____.

Strontium oxide has a face centered cubic unit cell of oxide ions with the strontium ions in octahedral holes.If the radius of Sr2+ is 127 pm and the radius of O2- is 135 pm,what is the density of strontium ions oxide? (100 cm = 1 × 1012 pm)

Which process requires the greatest endothermic change in enthalpy for water?

Iron crystallizes in a body-centered cubic lattice.If the radius of iron is 126 pm,what is the unit cell edge length?

Basic Concepts of Chemistry

Lets Review: The Tools of Quantitative Chemistry

Atoms, molecules, and Ions

Chemical Reactions

Stoichiometry: Quantitative Information About Chemical Reactions

Principles of Chemical Reactivity: Energy and Chemical Reactions

The Structure of Atoms

The Structure of Atoms and Periodic Trends

Bonding and Molecular Structure

Bonding and Molecular Structure Orbital Hybridization and Molecular Orbitals

Gases and Their Properties

Intermolecular Forces and Liquids

Solutions and Their Behavior

Chemical Kinetics: the Rates of Chemical Reactions

Principles of Chemical Reactivity: Equilibria

Principles of Chemical Reactivity: the Chemistry of Acids and Bases

Principles of Chemical Reactivity: Other Aspects of Aqueous Equilibria

Principles of Chemical Reactivity: Entropy and Free Energy

Principles of Chemical Reactivity: Electron Transfer Reactions

Environmental Chemistry: Earths Environment, energy, and Sustainability

The Chemistry of the Main Group Elements

The Chemistry of the Transition Elements

Carbon: Not Just Another Element

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Magnesium sulfide (molar mass 56.37 g/mol)has a face-centered cubic unit cell with magnesium ions in octahedral holes.The ionic radii of magnesium ions and sulfide ions are 79 pm and 184 pm,respectively.What is the density of MgS (in g/cm³)?

If an ionic compound with the formula MX₂ forms a face-centered cubic unit cell with the cations (M²ⁿ⁺)at the lattice points,the anions (Xn^-)will occupy:

Nickel has a face-centered cubic cell,and its density is 8.90 g/cm³.What is the radius (in pm)of a nickel atom? (The molar mass of nickel is 58.69 g/mol)

Polonium (atomic mass 209.0 g/mol)crystallizes in a primitive cubic unit cell.If the density of polonium is 9.15 g/cm³,what is the radius of a polonium atom (in pm)?

Strontium oxide has a face centered cubic unit cell of oxide ions with the strontium ions in octahedral holes.If the radius of Sr²⁺ is 127 pm and the radius of O^2- is 135 pm,what is the density of strontium ions oxide? (100 cm = 1 × 10¹² pm)