Question 1

What is the energy of a mole of photons with a frequency of 3.8 * 1014 /sec?

Accepted Answer

A) 1.5 * 105J/mol 
B) 1.5 * 10-5J/mol 
C) 6.7 * 10-7J/mol 
D) 6.7 * 107J/mol 
E) 3.8 * 10-5J/mol  
A) 1.5 * 105J/mol 
B) 1.5 * 10-5J/mol 
C) 6.7 * 10-7J/mol 
D) 6.7 * 107J/mol 
E) 3.8 * 10-5J/mol  A

Question 2

How is gamma radiation best described?

Accepted Answer

A) As very small wavelength and low frequency. 
B) As wavelength very near that of the visible spectrum. 
C) As large wavelength. 
D) As very low frequency. 
E) As very high frequency. 
A) As very small wavelength and low frequency. 
B) As wavelength very near that of the visible spectrum. 
C) As large wavelength. 
D) As very low frequency. 
E) As very high frequency. E

Question 3

What wavelength does radiation possess when its frequency is 2.1 * 1015 Hz?

Accepted Answer

A) 4.1 * 10-7 cm 
B) 1.4 * 10-7 m 
C) 6.5 * 106 m 
D) 7.0 * 106 m 
E) 1.4 * 10-7 nm 
A) 4.1 * 10-7 cm 
B) 1.4 * 10-7 m 
C) 6.5 * 106 m 
D) 7.0 * 106 m 
E) 1.4 * 10-7 nm B

Question 4

All the orbitals of a given shell of He+ are degenerate regardless of the value of the orbital angular momentum.

Accepted Answer

A) True 
 B)False

Question 5

When radiation has a frequency of 6.9*1017 Hz,what is its wavelength?

Accepted Answer

A) 4.3*10-10 m 
B) 3.4*10-10 m 
C) 3.0*10-8 m 
D) 2.3*10-9 m 
E) 2.3*10-8 nm 
A) 4.3*10-10 m 
B) 3.4*10-10 m 
C) 3.0*10-8 m 
D) 2.3*10-9 m 
E) 2.3*10-8 nm

Question 6

What is implied about an electron in an atom when it is observed that it has discrete spectral lines?

Accepted Answer

A) The electron is negatively charged. 
B) The electron is oppositely charged from the proton. 
C) The electron circles the nucleus. 
D) The electron can have only certain energies. 
E) The electron has negligible mass. 
A) The electron is negatively charged. 
B) The electron is oppositely charged from the proton. 
C) The electron circles the nucleus. 
D) The electron can have only certain energies. 
E) The electron has negligible mass.

Question 7

What is the energy of a mole of photons with a frequency of 5.8 * 1015 sec-1?

Accepted Answer

A) 2.3 * 10-5J/mol 
B) 2.3 * 106J/mol 
C) 4.9 * 106J/mol 
D) 4.9 * 10-5J/mol 
E) 5.8 * 10-15J/mol  
A) 2.3 * 10-5J/mol 
B) 2.3 * 106J/mol 
C) 4.9 * 106J/mol 
D) 4.9 * 10-5J/mol 
E) 5.8 * 10-15J/mol

Question 8

When a photon has an energy of 1.3 * 10-20 J,what will its frequency be,in Hz?

Accepted Answer

A) 1.9 * 1014  
B) 9.1 * 1020  
C) 1.9 * 1013  
D) 9.1 * 10-19  
E) 6.0 * 1013  
A) 1.9 * 1014  
B) 9.1 * 1020  
C) 1.9 * 1013  
D) 9.1 * 10-19  
E) 6.0 * 1013

Question 9

In everyday life,we have no difficulty in measuring both the velocity and position of objects.

Accepted Answer

A) True 
 B)False

Question 10

What is the wavelength of radiation with a frequency of 2.3 * 1013 /sec?

Accepted Answer

A) 3.0 * 108 m 
B) 7.6 * 105 cm 
C) 7.6 * 105 m 
D) 1.3 * 10-5 cm 
E) 1.3 * 10-5 m 
A) 3.0 * 108 m 
B) 7.6 * 105 cm 
C) 7.6 * 105 m 
D) 1.3 * 10-5 cm 
E) 1.3 * 10-5 m

Question 11

Which of the following emission lines corresponds to part of the Balmer series of lines in the spectrum of a hydrogen atom? 
(a)n2 $\rightarrow$n1
(b)n4 $\rightarrow$ n2
(c)n4 $\rightarrow$ n1
(d)n3 $\rightarrow$ n2
(e)n4 $\rightarrow$ n3

Accepted Answer

A) (b)and (d) 
B) (a),(d),and (e) 
C) (a)and (c) 
D) (e) 
E) (b)and (c) 
A) (b)and (d) 
B) (a),(d),and (e) 
C) (a)and (c) 
D) (e) 
E) (b)and (c)

Question 12

Which of the following experiments most directly supports de Broglie's hypothesis of the wave nature of matter?

Accepted Answer

A) Black-body radiation 
B) The photoelectric effect 
C)    -particle scattering by a metal foil 
D) Electron diffraction by a crystal 
E) The emission spectrum of the hydrogen atom 
A) Black-body radiation 
B) The photoelectric effect 
C)    -particle scattering by a metal foil 
D) Electron diffraction by a crystal 
E) The emission spectrum of the hydrogen atom

Question 13

In 1.0 s,a 60 W bulb emits 11 J of energy in the form of infrared radiation (heat)of wavelength 1850 nm.How many photons of infrared radiation does the lamp generate in 1.0 s?

Accepted Answer

A) 1.0 * 1029  
B) 1.0 * 1020  
C) 6.8 * 10-14  
D) 1.1 * 10-19  
E) 6.6 * 1023  
A) 1.0 * 1029  
B) 1.0 * 1020  
C) 6.8 * 10-14  
D) 1.1 * 10-19  
E) 6.6 * 1023

Question 14

What is the wavelength of radiation with a frequency of 2.7 * 1018 m?

Accepted Answer

A) 1.1 * 10-11 cm 
B) 1.1 * 10-11 m 
C) 9.9 * 10-11 m 
D) 9.9 * 10-11 cm 
E) 3.0 * 10-11 m 
A) 1.1 * 10-11 cm 
B) 1.1 * 10-11 m 
C) 9.9 * 10-11 m 
D) 9.9 * 10-11 cm 
E) 3.0 * 10-11 m

Question 15

What is the wavelength of a radio station transmitting at 99.1 MHz?

Accepted Answer

A) 330 nm 
B) 303 nm 
C) 0.00303 m 
D) 3.03 m 
E) 0.330 m 
A) 330 nm 
B) 303 nm 
C) 0.00303 m 
D) 3.03 m 
E) 0.330 m

Question 16

What is the frequency of radiation with a wavelength of 2.0 m?

Accepted Answer

A) 1.5 * 108 /sec 
B) 3.0 * 108 /sec 
C) 7.0 * 10-9 /sec 
D) 7.0 * 108 /sec 
E) 1.5 * 10-8 /sec 
A) 1.5 * 108 /sec 
B) 3.0 * 108 /sec 
C) 7.0 * 10-9 /sec 
D) 7.0 * 108 /sec 
E) 1.5 * 10-8 /sec

Question 17

Which of the following is a Lyman series UV band?

Accepted Answer

A) 121.6 nm 
B) 221.6 nm 
C) 434.0 nm 
D) 121.6 cm 
E) 410.2 nm 
A) 121.6 nm 
B) 221.6 nm 
C) 434.0 nm 
D) 121.6 cm 
E) 410.2 nm

Question 18

Carotene,which is partly responsible for the color of carrots,has 22 $\pi$ electrons in a conjugated system and a length of about 3 nm.The lowest energy transition in carotene is from n = ___ to n = ___.

Accepted Answer

The answer of Carotene,which is partly responsible for the color...

Question 19

Estimate the frequency of the wave shown below.

Accepted Answer

A) 1.5 × 1017 s−1 
B) 3.0 × 1017 s−1 
C) 1.0 × 1017 s−1 
D) 2.0 × 1017 s−1 
E) Not enough information is given to permit calculation of the frequency. 
A) 1.5 × 1017 s−1 
B) 3.0 × 1017 s−1 
C) 1.0 × 1017 s−1 
D) 2.0 × 1017 s−1 
E) Not enough information is given to permit calculation of the frequency.

Question 20

Calculate the velocity of an oxygen molecule,given that it has a de Broglie wavelength of 0.0140 nm.

Accepted Answer

A) 890.m.s-1  
B) 3.00 * 108 m.s-1  
C) 1780 m.s-1  
D) 445 m.s-1  
E) 8.90 m.s-1  
A) 890.m.s-1  
B) 3.00 * 108 m.s-1  
C) 1780 m.s-1  
D) 445 m.s-1  
E) 8.90 m.s-1

What is the energy of a mole of photons with a frequency of 3.8 * 10¹⁴ /sec?

How is gamma radiation best described?

What wavelength does radiation possess when its frequency is 2.1 * 10¹⁵ Hz?

All the orbitals of a given shell of He⁺ are degenerate regardless of the value of the orbital angular momentum.

When radiation has a frequency of 6.9*10¹⁷ Hz,what is its wavelength?

What is implied about an electron in an atom when it is observed that it has discrete spectral lines?

What is the energy of a mole of photons with a frequency of 5.8 * 10¹⁵ sec^-1?

When a photon has an energy of 1.3 * 10^-20 J,what will its frequency be,in Hz?

In everyday life,we have no difficulty in measuring both the velocity and position of objects.

What is the wavelength of radiation with a frequency of 2.3 * 10¹³ /sec?

Which of the following emission lines corresponds to part of the Balmer series of lines in the spectrum of a hydrogen atom? (a)n₂ $\rightarrow$ n₁ (b)n₄ $\rightarrow$ n₂ (c)n₄ $\rightarrow$ n₁ (d)n₃ $\rightarrow$ n₂ (e)n₄ $\rightarrow$ n₃

Which of the following experiments most directly supports de Broglie's hypothesis of the wave nature of matter?

In 1.0 s,a 60 W bulb emits 11 J of energy in the form of infrared radiation (heat)of wavelength 1850 nm.How many photons of infrared radiation does the lamp generate in 1.0 s?

What is the wavelength of radiation with a frequency of 2.7 * 10¹⁸m?

What is the wavelength of a radio station transmitting at 99.1 MHz?

What is the frequency of radiation with a wavelength of 2.0 m?

Which of the following is a Lyman series UV band?

Carotene,which is partly responsible for the color of carrots,has 22 $\pi$ electrons in a conjugated system and a length of about 3 nm.The lowest energy transition in carotene is from n = _ to n = _.

Estimate the frequency of the wave shown below.

Calculate the velocity of an oxygen molecule,given that it has a de Broglie wavelength of 0.0140 nm.

Quantum Mechanics in Action: Atoms

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Inorganic Materials

Thermodynamics: The First Law

Thermodynamics: The Second and Third Laws

Physical Equilibria

Chemical Equilibria

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Exam 1: The Quantum World

What is the energy of a mole of photons with a frequency of 3.8 * 1014 /sec?

How is gamma radiation best described?

What wavelength does radiation possess when its frequency is 2.1 * 1015 Hz?

All the orbitals of a given shell of He+ are degenerate regardless of the value of the orbital angular momentum.

When radiation has a frequency of 6.9*1017 Hz,what is its wavelength?

What is implied about an electron in an atom when it is observed that it has discrete spectral lines?

What is the energy of a mole of photons with a frequency of 5.8 * 1015 sec-1?

When a photon has an energy of 1.3 * 10-20 J,what will its frequency be,in Hz?

In everyday life,we have no difficulty in measuring both the velocity and position of objects.

What is the wavelength of radiation with a frequency of 2.3 * 1013 /sec?

Which of the following emission lines corresponds to part of the Balmer series of lines in the spectrum of a hydrogen atom? (a)n2 →\rightarrow→ n1 (b)n4 →\rightarrow→ n2 (c)n4 →\rightarrow→ n1 (d)n3 →\rightarrow→ n2 (e)n4 →\rightarrow→ n3

Which of the following experiments most directly supports de Broglie's hypothesis of the wave nature of matter?

In 1.0 s,a 60 W bulb emits 11 J of energy in the form of infrared radiation (heat)of wavelength 1850 nm.How many photons of infrared radiation does the lamp generate in 1.0 s?

What is the wavelength of radiation with a frequency of 2.7 * 1018 m?

What is the wavelength of a radio station transmitting at 99.1 MHz?

What is the frequency of radiation with a wavelength of 2.0 m?

Which of the following is a Lyman series UV band?

Carotene,which is partly responsible for the color of carrots,has 22 π\piπ electrons in a conjugated system and a length of about 3 nm.The lowest energy transition in carotene is from n = ___ to n = ___.

Estimate the frequency of the wave shown below.

Calculate the velocity of an oxygen molecule,given that it has a de Broglie wavelength of 0.0140 nm.

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

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What is the energy of a mole of photons with a frequency of 3.8 * 10¹⁴ /sec?

What wavelength does radiation possess when its frequency is 2.1 * 10¹⁵ Hz?

All the orbitals of a given shell of He⁺ are degenerate regardless of the value of the orbital angular momentum.

When radiation has a frequency of 6.9*10¹⁷ Hz,what is its wavelength?

What is the energy of a mole of photons with a frequency of 5.8 * 10¹⁵ sec^-1?

When a photon has an energy of 1.3 * 10^-20 J,what will its frequency be,in Hz?

What is the wavelength of radiation with a frequency of 2.3 * 10¹³ /sec?

Which of the following emission lines corresponds to part of the Balmer series of lines in the spectrum of a hydrogen atom? (a)n₂ $\rightarrow$ n₁ (b)n₄ $\rightarrow$ n₂ (c)n₄ $\rightarrow$ n₁ (d)n₃ $\rightarrow$ n₂ (e)n₄ $\rightarrow$ n₃

What is the wavelength of radiation with a frequency of 2.7 * 10¹⁸m?

Carotene,which is partly responsible for the color of carrots,has 22 $\pi$ electrons in a conjugated system and a length of about 3 nm.The lowest energy transition in carotene is from n = _ to n = _.