Question 1

What type of spectrum, if any, would be produced if the light radiated by a heated atomic gas were to be dispersed through a prism?

Accepted Answer

A)  a continuous band of color 
B)  a continuous band of color with some dark lines (missing wavelengths) 
C)  only blue light 
D)  only red light 
E)  discrete lines of different colors 
A)  a continuous band of color 
B)  a continuous band of color with some dark lines (missing wavelengths) 
C)  only blue light 
D)  only red light 
E)  discrete lines of different colors

Question 2

A modern compact fluorescent lamp contains 1.4 mg of mercury. If each mercury atom in the lamp were to emit a single photon of wavelength 254 nm, how many joules of energy would be emitted?

Accepted Answer

A)  7.8 × 10-19 J 
B)  3.3 J 
C)  6.6 × 102 J 
D)  3.3 × 103 J 
E)  4.2 × 1018 J 
A)  7.8 × 10-19 J 
B)  3.3 J 
C)  6.6 × 102 J 
D)  3.3 × 103 J 
E)  4.2 × 1018 J

Question 3

Which one of the following sets of quantum numbers can correctly represent a 3p orbital?

Accepted Answer

A)  n = 3 l = 1 ml = 2 
B)  n = 1 l = 3 ml = 3 
C)  n = 3 l = 2 ml = 1 
D)  n = 3 l = 1 ml = -1 
E)  n = 3 l = 0 ml = 1 
A)  n = 3 l = 1 ml = 2 
B)  n = 1 l = 3 ml = 3 
C)  n = 3 l = 2 ml = 1 
D)  n = 3 l = 1 ml = -1 
E)  n = 3 l = 0 ml = 1

Question 4

The shape of an atomic orbital is associated with

Accepted Answer

A)  the principal quantum number (n). 
B)  the angular momentum quantum number (l). 
C)  the magnetic quantum number (ml). 
D)  the spin quantum number (ms). 
E)  the magnetic and spin quantum numbers, together. 
A)  the principal quantum number (n). 
B)  the angular momentum quantum number (l). 
C)  the magnetic quantum number (ml). 
D)  the spin quantum number (ms). 
E)  the magnetic and spin quantum numbers, together.

Question 5

Electromagnetic radiation can be specified by its wavelength ( ), its frequency ( ) or its period (). The period is the time it takes one complete wavelength to pass a point in space. Based on this information, what is the mathematical relationship between and ?

Accepted Answer

A)    = 1/   
B)    =   
C)    =   /   
D)    =   ×   
E)    =   /   
A)    = 1/   
B)    =   
C)    =   /   
D)    =   ×   
E)    =   /

Question 6

For all the allowed vibration(s) (wavelength(s)) of a plucked guitar string, what is the correct relationship between the length of the string, L, and the wavelength,   ?

Accepted Answer

A)  L =   /2 
B)  L =   
C)  L = n   /2 where n is a positive integer 
D)  L = n   where n is a positive integer 
E)  L = 1/   
A)  L =   /2 
B)  L =   
C)  L = n   /2 where n is a positive integer 
D)  L = n   where n is a positive integer 
E)  L = 1/

Question 7

If the energy of a photon is 1.32 × 10-18 J, what is its wavelength in nm?

Accepted Answer

A)  1.50 × 10-7 nm 
B)  150. nm 
C)  1.99 × 1015 nm 
D)  1.99 × 1024 nm 
E)  None of these choices are correct. 
A)  1.50 × 10-7 nm 
B)  150. nm 
C)  1.99 × 1015 nm 
D)  1.99 × 1024 nm 
E)  None of these choices are correct.

Question 8

Continuous spectra are characteristic of molecules in the gas phase.

Accepted Answer

A) True 
 B)False

Question 9

In the Rydberg equation, for a fixed value of n1, the longest wavelength line has n2 =∞.

Accepted Answer

A) True 
 B)False

What type of spectrum, if any, would be produced if the light radiated by a heated atomic gas were to be dispersed through a prism?

A modern compact fluorescent lamp contains 1.4 mg of mercury. If each mercury atom in the lamp were to emit a single photon of wavelength 254 nm, how many joules of energy would be emitted?

Which one of the following sets of quantum numbers can correctly represent a 3p orbital?

The shape of an atomic orbital is associated with

Electromagnetic radiation can be specified by its wavelength ( ), its frequency ( ) or its period (). The period is the time it takes one complete wavelength to pass a point in space. Based on this information, what is the mathematical relationship between and ?

For all the allowed vibration(s) (wavelength(s)) of a plucked guitar string, what is the correct relationship between the length of the string, L, and the wavelength, ?

If the energy of a photon is 1.32 × 10^-18 J, what is its wavelength in nm?

Continuous spectra are characteristic of molecules in the gas phase.

In the Rydberg equation, for a fixed value of n1, the longest wavelength line has n2 =∞.

Keys to Studying Chemistry Definitions, Units, and Problem Solving

The Components of Matter

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry Energy Flow and Chemical Change

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces Liquids, Solids, and Phase Changes

The Properties of Mixtures Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics Rates and Mechanisms of Chemical Reactions

Equilibrium the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics Entropy, Free Energy, and Reaction Direction

Electrochemistry Chemical Change and Electrical Work

The Elements in Nature and Industry

Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

Exam 7: Quantum Theory and Atomic Structure

What type of spectrum, if any, would be produced if the light radiated by a heated atomic gas were to be dispersed through a prism?

A modern compact fluorescent lamp contains 1.4 mg of mercury. If each mercury atom in the lamp were to emit a single photon of wavelength 254 nm, how many joules of energy would be emitted?

Which one of the following sets of quantum numbers can correctly represent a 3p orbital?

The shape of an atomic orbital is associated with

Electromagnetic radiation can be specified by its wavelength ( ), its frequency ( ) or its period (). The period is the time it takes one complete wavelength to pass a point in space. Based on this information, what is the mathematical relationship between and ?

For all the allowed vibration(s) (wavelength(s)) of a plucked guitar string, what is the correct relationship between the length of the string, L, and the wavelength, ?

If the energy of a photon is 1.32 × 10-18 J, what is its wavelength in nm?

Continuous spectra are characteristic of molecules in the gas phase.

In the Rydberg equation, for a fixed value of n1, the longest wavelength line has n2 =∞.

Keys to Studying Chemistry Definitions, Units, and Problem Solving

The Components of Matter

Stoichiometry of Formulas and Equations

Three Major Classes of Chemical Reactions

Gases and the Kinetic-Molecular Theory

Thermochemistry Energy Flow and Chemical Change

Electron Configuration and Chemical Periodicity

Models of Chemical Bonding

The Shapes of Molecules

Theories of Covalent Bonding

Intermolecular Forces Liquids, Solids, and Phase Changes

The Properties of Mixtures Solutions and Colloids

Periodic Patterns in the Main-Group Elements

Organic Compounds and the Atomic Properties of Carbon

Kinetics Rates and Mechanisms of Chemical Reactions

Equilibrium the Extent of Chemical Reactions

Acid-Base Equilibria

Ionic Equilibria in Aqueous Systems

Thermodynamics Entropy, Free Energy, and Reaction Direction

Electrochemistry Chemical Change and Electrical Work

The Elements in Nature and Industry

Transition Elements and Their Coordination Compounds

Nuclear Reactions and Their Applications

Filters

If the energy of a photon is 1.32 × 10^-18 J, what is its wavelength in nm?