Question 1

Light of wavelength 242 nm ionizes a sodium ion in the gas phase; what is the ionization energy of sodium?

Accepted Answer

A) 8.20 kJ.mol-1 
B) 988 kJ.mol-1 
C) 198 kJ.mol-1 
D) 494 kJ.mol-1 
E) 247 kJ.mol-1 
A) 8.20 kJ.mol-1 
B) 988 kJ.mol-1 
C) 198 kJ.mol-1 
D) 494 kJ.mol-1 
E) 247 kJ.mol-1

Question 2

A photon with an energy of 1.8 * 10-19 J possesses what frequency in sec-1?

Accepted Answer

A) 7.2 * 10-14  
B) 2.7 * 1015  
C) 2.7 * 10-14  
D) 2.7 * 1014  
E) 7.2 * 1015  
A) 7.2 * 10-14  
B) 2.7 * 1015  
C) 2.7 * 10-14  
D) 2.7 * 1014  
E) 7.2 * 1015

Question 3

Of the following,which is a Balmer series visible band?

Accepted Answer

A) 954.6 nm 
B) 656.3 nm 
C) 401.2 nm 
D) 121.6 nm 
E) 97.3 nm 
A) 954.6 nm 
B) 656.3 nm 
C) 401.2 nm 
D) 121.6 nm 
E) 97.3 nm

Question 4

An electron is confined to a one-dimensional box 200 pm in length,calculate the wavelength of light required to promote the electron from the ground state to the first excited state.

Accepted Answer

A) 329 pm 
B) 263 pm 
C) 165 pm 
D) 439 pm 
E) 1320 pm 
A) 329 pm 
B) 263 pm 
C) 165 pm 
D) 439 pm 
E) 1320 pm

Question 5

If a particle is confined to a one-dimensional box of length 300 pm,for $\varPsi$ 3 the particle has zero probability of being found at

Accepted Answer

A) 100 and 200 pm,respectively. 
B) 150 pm only. 
C) 50,150,and 250 pm,respectively. 
D) 50 and 250 pm,respectively. 
E) 75,125,175,and 225 pm,respectively. 
A) 100 and 200 pm,respectively. 
B) 150 pm only. 
C) 50,150,and 250 pm,respectively. 
D) 50 and 250 pm,respectively. 
E) 75,125,175,and 225 pm,respectively.

Question 6

What is the probability of finding an electron in a small region of a hydrogen 1s orbital at a distance 3a0 from the nucleus relative to the probability of finding it in the same small region located at the nucleus?

Accepted Answer

A) 14% 
B) 0.25% 
C) 22% 
D) 1.8% 
E) 5.0% 
A) 14% 
B) 0.25% 
C) 22% 
D) 1.8% 
E) 5.0%

Question 7

Which of the following metals has the lowest work function?

Accepted Answer

A) Be 
B) Sr 
C) Li 
D) Rb 
A) Be 
B) Sr 
C) Li 
D) Rb

Question 8

What does the term "black body" signify for an object?

Accepted Answer

A) The object is white hot. 
B) The object is black to human sight. 
C) The object absorbs and emits all wavelengths 
D) The object absorbs certain wavelengths of light preferentially. 
E) There is no significance to the name. 
A) The object is white hot. 
B) The object is black to human sight. 
C) The object absorbs and emits all wavelengths 
D) The object absorbs certain wavelengths of light preferentially. 
E) There is no significance to the name.

Question 9

The four $\pi$ electrons of 1,3-butadiene can be modeled as particles in a box.If the length of 1,3-butadiene (L)is 0.56 nm,calculate the energy of the lowest energy transition.

Accepted Answer

9.6 * 10<s

Question 10

What wavelength does radiation have when its frequency is 5.6*1013 /sec?

Accepted Answer

A) 5.4*10-9 m 
B) 5.4*10-8 m 
C) 5.4*10-7 m 
D) 5.4*10-6 m 
E) 5.4*10-6 cm 
A) 5.4*10-9 m 
B) 5.4*10-8 m 
C) 5.4*10-7 m 
D) 5.4*10-6 m 
E) 5.4*10-6 cm

Question 11

Wavelength is defined how,in terms of electromagnetic radiation?

Accepted Answer

A) The peak to peak distance between waves. 
B) The peak to trough distance between waves. 
C) The speed with which a wave traverses a distance. 
D) The amplitude with which a wave traverses a distance. 
E) The trough to peak distance between a wave as well as the speed the wave traverses this distance. 
A) The peak to peak distance between waves. 
B) The peak to trough distance between waves. 
C) The speed with which a wave traverses a distance. 
D) The amplitude with which a wave traverses a distance. 
E) The trough to peak distance between a wave as well as the speed the wave traverses this distance.

Question 12

Calculate the wavelength of a motorcycle of mass 275 kg traveling at a speed of 125 km.hr-1.

Accepted Answer

A) 6.94 * 10-38 m 
B) 1.93 * 10-38 m 
C) 1.93 * 10-41 m 
D) 2.41 * 10-36 m 
E) 2.08 *10-29 m 
A) 6.94 * 10-38 m 
B) 1.93 * 10-38 m 
C) 1.93 * 10-41 m 
D) 2.41 * 10-36 m 
E) 2.08 *10-29 m

Question 13

What is the energy of a mole of photons with a frequency of 2.9 * 1015 sec-1?

Accepted Answer

A) 1.2 * 106J/mol 
B) 1.2 * 109J/mol 
C) 8.3 *10-7J/mol 
D) 8.3 * 107J/mol 
E) 6.7 * 106J/mol  
A) 1.2 * 106J/mol 
B) 1.2 * 109J/mol 
C) 8.3 *10-7J/mol 
D) 8.3 * 107J/mol 
E) 6.7 * 106J/mol

Question 14

When a mole of photons has the frequency 4.2 * 1015 Hz,what is its energy?

Accepted Answer

A) 1.7 * 10-6J/mol 
B) 5.9 * 10-7J/mol 
C) 5.9 * 107J/mol 
D) 6.2 * 108J/mol 
E) 1.7 *106J/mol  
A) 1.7 * 10-6J/mol 
B) 5.9 * 10-7J/mol 
C) 5.9 * 107J/mol 
D) 6.2 * 108J/mol 
E) 1.7 *106J/mol

Question 15

What is the energy of a mole of photons with a frequency of 9.1 * 1015 Hz?

Accepted Answer

A) 3.6 * 10-5J/mol 
B) 3.6 * 106J/mol 
C) 2.8 * 10-7J/mol 
D) 2.8 * 107J/mol 
E) 7.0 * 106J/mol  
A) 3.6 * 10-5J/mol 
B) 3.6 * 106J/mol 
C) 2.8 * 10-7J/mol 
D) 2.8 * 107J/mol 
E) 7.0 * 106J/mol

Question 16

In a one-dimensional particle in a box,the zero-point energy corresponds to

Accepted Answer

A) a node. 
B) n = 0. 
C) n = 1. 
D) A quantum state where the uncertainty principle is not valid. 
E) ($\varPsi$ 2 = 0.) 
A) a node. 
B) n = 0. 
C) n = 1. 
D) A quantum state where the uncertainty principle is not valid. 
E) ($\varPsi$ 2 = 0.)

Question 17

Which of the following has the highest energy per photon?

Accepted Answer

A) Infrared 
B) Blue light 
C) Green light 
D) Orange light 
E) Red light 
A) Infrared 
B) Blue light 
C) Green light 
D) Orange light 
E) Red light

Question 18

Calculate the longest-wavelength line in the Balmer series for hydrogen.

Accepted Answer

A) 182 nm 
B) 657 nm 
C) 536 nm 
D) 122 nm 
E) 486 nm 
A) 182 nm 
B) 657 nm 
C) 536 nm 
D) 122 nm 
E) 486 nm

Question 19

Which of the following is the smallest wavelength electromagnetic radiation?

Accepted Answer

A) Radio. 
B) Microwave. 
C) Ultraviolet. 
D) Visible blue light. 
E) Infrared. 
A) Radio. 
B) Microwave. 
C) Ultraviolet. 
D) Visible blue light. 
E) Infrared.

Question 20

A mole of photons with a frequency of 3.1 * 1014 /sec has what energy?

Accepted Answer

A) 1.2 * 10-5J/mol 
B) 8.3 * 10-7J/mol 
C) 8.3 * 107J/mol 
D) 7.1 * 107J/mol 
E) 1.2 * 105J/mol  
A) 1.2 * 10-5J/mol 
B) 8.3 * 10-7J/mol 
C) 8.3 * 107J/mol 
D) 7.1 * 107J/mol 
E) 1.2 * 105J/mol

Light of wavelength 242 nm ionizes a sodium ion in the gas phase; what is the ionization energy of sodium?

A photon with an energy of 1.8 * 10^-19 J possesses what frequency in sec^-1?

Of the following,which is a Balmer series visible band?

An electron is confined to a one-dimensional box 200 pm in length,calculate the wavelength of light required to promote the electron from the ground state to the first excited state.

If a particle is confined to a one-dimensional box of length 300 pm,for $\varPsi$ ₃ the particle has zero probability of being found at

What is the probability of finding an electron in a small region of a hydrogen 1s orbital at a distance 3a₀ from the nucleus relative to the probability of finding it in the same small region located at the nucleus?

Which of the following metals has the lowest work function?

What does the term "black body" signify for an object?

The four $\pi$ electrons of 1,3-butadiene can be modeled as particles in a box.If the length of 1,3-butadiene (L)is 0.56 nm,calculate the energy of the lowest energy transition.

What wavelength does radiation have when its frequency is 5.6*10¹³ /sec?

Wavelength is defined how,in terms of electromagnetic radiation?

Calculate the wavelength of a motorcycle of mass 275 kg traveling at a speed of 125 km.hr^-¹.

What is the energy of a mole of photons with a frequency of 2.9 * 10¹⁵ sec^-1?

When a mole of photons has the frequency 4.2 * 10¹⁵ Hz,what is its energy?

What is the energy of a mole of photons with a frequency of 9.1 * 10¹⁵ Hz?

In a one-dimensional particle in a box,the zero-point energy corresponds to

Which of the following has the highest energy per photon?

Calculate the longest-wavelength line in the Balmer series for hydrogen.

Which of the following is the smallest wavelength electromagnetic radiation?

A mole of photons with a frequency of 3.1 * 10¹⁴ /sec has what energy?

Quantum Mechanics in Action: Atoms

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Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

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The Elements: the Main Group Elements

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Exam 1: The Quantum World

Light of wavelength 242 nm ionizes a sodium ion in the gas phase; what is the ionization energy of sodium?

A photon with an energy of 1.8 * 10-19 J possesses what frequency in sec-1?

Of the following,which is a Balmer series visible band?

An electron is confined to a one-dimensional box 200 pm in length,calculate the wavelength of light required to promote the electron from the ground state to the first excited state.

If a particle is confined to a one-dimensional box of length 300 pm,for Ψ\varPsiΨ 3 the particle has zero probability of being found at

What is the probability of finding an electron in a small region of a hydrogen 1s orbital at a distance 3a0 from the nucleus relative to the probability of finding it in the same small region located at the nucleus?

Which of the following metals has the lowest work function?

What does the term "black body" signify for an object?

The four π\piπ electrons of 1,3-butadiene can be modeled as particles in a box.If the length of 1,3-butadiene (L)is 0.56 nm,calculate the energy of the lowest energy transition.

What wavelength does radiation have when its frequency is 5.6*1013 /sec?

Wavelength is defined how,in terms of electromagnetic radiation?

Calculate the wavelength of a motorcycle of mass 275 kg traveling at a speed of 125 km.hr-1.

What is the energy of a mole of photons with a frequency of 2.9 * 1015 sec-1?

When a mole of photons has the frequency 4.2 * 1015 Hz,what is its energy?

What is the energy of a mole of photons with a frequency of 9.1 * 1015 Hz?

In a one-dimensional particle in a box,the zero-point energy corresponds to

Which of the following has the highest energy per photon?

Calculate the longest-wavelength line in the Balmer series for hydrogen.

Which of the following is the smallest wavelength electromagnetic radiation?

A mole of photons with a frequency of 3.1 * 1014 /sec has what energy?

Quantum Mechanics in Action: Atoms

Chemical Bonds

Molecular Shape and Structure

The Properties of Gases

Liquids and Solids

Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

Acids and Bases

Aqueous Equilibria

Electrochemistry

Chemical Kinetics

The Elements: the Main Group Elements

The Elements: The D Block

Nuclear Chemistry

Organic Chemistry I

Organic Chemistry II

Filters

A photon with an energy of 1.8 * 10^-19 J possesses what frequency in sec^-1?

If a particle is confined to a one-dimensional box of length 300 pm,for $\varPsi$ ₃ the particle has zero probability of being found at

What is the probability of finding an electron in a small region of a hydrogen 1s orbital at a distance 3a₀ from the nucleus relative to the probability of finding it in the same small region located at the nucleus?

The four $\pi$ electrons of 1,3-butadiene can be modeled as particles in a box.If the length of 1,3-butadiene (L)is 0.56 nm,calculate the energy of the lowest energy transition.

What wavelength does radiation have when its frequency is 5.6*10¹³ /sec?

Calculate the wavelength of a motorcycle of mass 275 kg traveling at a speed of 125 km.hr^-¹.

What is the energy of a mole of photons with a frequency of 2.9 * 10¹⁵ sec^-1?

When a mole of photons has the frequency 4.2 * 10¹⁵ Hz,what is its energy?

What is the energy of a mole of photons with a frequency of 9.1 * 10¹⁵ Hz?

A mole of photons with a frequency of 3.1 * 10¹⁴ /sec has what energy?