Mastering Chemistry 4th exam

What is a probability distribution map? -an empirical map that shows where an electron is likely to be created under various conditions -an empirical map that shows where an electron is likely to be found under a given set of conditions -a statistical map that shows where an electron is likely to be found under a given set of conditions -an empirical map that shows where an electron is likely to be found under various conditions

a statistical map that shows where an electron is likely to be found under a given set of conditions

Diffraction is a characteristic behaviour of waves that occurs when -waves of equal amplitude from two sources are in phase when they interact. -waves of equal amplitude from two sources are out of phase when they interact. -a wave encounters an obstacle or a slit that is comparable in size to its wavelength, and bends around it. -a wave encounters an obstacle or a slit that is larger in size than its wavelength, and bends around it. -a wave encounters an obstacle or a slit that is smaller in size than its amplitude, and bends around it.

a wave encounters an obstacle or a slit that is comparable in size to its wavelength, and bends around it

The vertical height of a wave is called wavelength area frequency median amplitude

amplitude

Identify the color that has a wavelength of 450 nm red green blue violet yellow

blue

When an electric current is passed through a tube containing mercury, mercury atoms absorb some of the electrical energy and reemit it as a _____ color. white yellow violet blue red

blue

Place the following types of electromagnetic radiation in order of increasing wavelength. ultraviolet light gamma rays radio waves radio waves < ultraviolet light < gamma rays ultraviolet light < gamma rays < radio waves radio waves < gamma rays < ultraviolet light gamma rays < ultraviolet light < radio waves gamma rays < radio waves < ultraviolet light

gamma rays < ultraviolet light < radio waves

Identify the color that has a wavelength of 530 nm green yellow red violet blue

green

the heat that is felt from a hot object is called ____________ radiation gamma infrared microwave ultraviolet x-ray

infrared

On the electromagnetic spectrum, visible light is immediately between two other wavelengths. Name them. microwave and ultraviolet infrared and x-ray radio and microwave gamma ray and ultraviolet infrared and ultraviolet

infrared and ultraviolet

An electron behaves in ways that are at least partially indeterminate. What does this mean? -means that under identical conditions, the electron has the same trajectory and does not "land" in the same spot each time -means that under identical conditions, the electron does not have the same trajectory and does not "land" in the same spot each time -means that under identical conditions, the electron does not have the same trajectory but "lands" in the same spot each time -none of the above

means that under identical conditions, the electron does not have the same trajectory and does not "land" in the same spot each time

Place the following types of electromagnetic radiation in order of increasing frequency. infrared light microwaves x-rays infrared light < microwaves < x-rays x-rays < microwaves < infrared light microwaves < infrared light < x-rays x-rays < infrared light < microwaves microwaves < x-rays < infrared light

microwaves < infrared light < x-rays

Choose the transition (in a hydrogen atom) below that represents the absorption of the shortest wavelength photon. n = 2 to n = 3 n = 1 to n = 2 n = 6 to n = 5 n = 4 to n = 5 n = 3 to n = 2

n = 1 to n = 2

Identify the correct values for a 3p orbital. n = 1, l = 0, ml = 0 n = 4, l = 0, ml = -2 n = 2, l = 0, ml = 0 n = 2, l = 1, ml = -2 n = 3, l = 1, ml = -1

n = 3, l = 1, ml = -1

Which transition in the hydrogen atom produces emitted light with the longest wavelength? n = 2 -> n = 1 n = 3 -> n = 2 n = 4 -> n = 3

n = 4 -> n = 3

Identify the color of a flame test for lithium. blue red yellow white violet

red

which of the following visible colors of light has the longest wavelength? yellow green red blue violet

red

What are the possible orbitals for n = 4? s s, p, and d s, p, d, and f s and p

s, p, d, and f

Heisenberg's uncertainty principle tells us that _____. -the more accurately we know the position of a particle, the less accurately we can know the velocity of that particle -complementary properties are those properties that can be measured simultaneously -an electron is actually something intermediate between a particle and a wave -the de Broglie wavelength of an electron is related to its velocity

the more accurately we know the position of a particle, the less accurately we can know the velocity of that particle

A sunburn is caused by overexposure to ______ radiation radio microwave gamma ultraviolet x-ray

ultraviolet

Which of the following visible colors of light has the highest frequency? yellow blue green violet orange

violet

Place the following types of electromagnetic radiation in order of decreasing energy. visible light radio waves microwaves visible light > microwaves > radio waves microwaves > radio waves > visible light radio waves > visible light > microwaves visible light > radio waves > microwaves radio waves > microwaves > visible light

visible light > microwaves > radio waves

The distance between adjacent crests is called area frequency median amplitude wavelength

wavelength

What determines the color of light? amplitude speed of light wavelength density of the environment mass of an atom

wavelength

__________ is/are used to image bones and internal organs gamma rays microwaves ultraviolet light x-rays radio waves

x-rays

Determine the energy change associated with the transition from n = 2 to n = 5 in the hydrogen atom. -1.53 × 10^-19 J -2.18 × 10^-19 J +4.58 × 10^-19 J +3.76 × 10^-19 J +6.54 × 10^-19 J

+4.58 × 10^-19 J

Give the numbers for ml for a p orbital. 0, +1 -3, -2, -1, 0 -2, -1, 0, +1, +2 -1, 0, +1 +1

-1, 0, +1

Calculate the energy change associated with the transition from n = 4 to n = 1 in the hydrogen atom. +4.89 × 10^-18 J -2.04 × 10^-18 J +3.55 × 10^-18 J -6.12 × 10^-18 J +1.64 × 10^-18 J

-2.04 × 10^-18 J

What is the maximum number of s orbitals that are possible in a given shell? 2 4 6 8 1

1

Calculate the wavelength of a baseball (m = 155 g) moving at 25.3 m/s. 3.57 × 10^-32 m 3.38 × 10^-34 m 7.60 × 10^-36 m 1.69 × 10^-32 m 1.69 × 10^-34 m

1.69 * 10^-34 m

What value of l is represented by a d orbital? 3 1 0 2

2

What is the de Broglie wavelength (in meters) of a 45-g golf ball traveling at 72 m/s? 1.1 × 10^−30 m 2.0 × 10^−34 m 2.0 × 10^−35 m 2.0 × 10^−37 m

2.0 * 10^-34 m

Determine the mass of a ball with a velocity of 35.0 m/s and a wavelength of 8.92 × 10^-34 m. 2.07 g 594 g 26.0 g 21.2 g 47.1 g

21.2 g

Identify the correct values for a 2s and 2p orbital contained at the n = 2 level. 2p: l = 1, ml = -1, l = 1, ml = 0 and l = 1, ml = +1 2p: l = 2, ml = -2, l = 2, ml = -1, l = 2, ml = 0, l = 2, ml = +1, and l = 2, ml = +2 2p: l = 0, ml = -1, l = 0, ml = 0 and l = 0, ml = +1 2s: l = 1, ml = 1 2s: l = 0, ml = 0

2p: l = 1, ml = -1, l = 1, ml = 0 and l = 1, ml = +1 2s: l = 0, ml = 0

How many different values of ml are possible in the 2p sublevel? 5 3 2 7 0

3

What is the maximum number of p orbitals that are possible in a given shell? 4 3 1 6 8

3

Calculate the energy of the green light emitted, per photon, by a mercury lamp with a frequency of 5.49 × 10^14 Hz. 4.68 × 10^-19 J 2.75 × 10^-19 J 5.46 × 10^-19 J 1.83 × 10^-19 J 3.64 × 10^-19 J

3.64 * 10^-19 J

Calculate the frequency of the red light emitted by a neon sign with a wavelength of 660 nm. 4.55 × 10^14 s^-1 3.30 × 10^14 s^-1 2.20 × 10^14 s^-1 3.60 × 10^14 s^-1 5.05 × 10^14 s^-1

4.55 * 10^14 s^-1

Calculate the frequency of light associated with the transition from n = 2 to n = 3 in the hydrogen atom. 3.28 × 10^14 s^-1 5.59 × 10^14 s^-1 2.19 × 10^14 s^-1 4.57 × 10^14 s^-1 1.79 × 10^14 s^-1

4.57 × 10^14 s^-1

Calculate the wavelength (in nm) of the blue light emitted by a mercury lamp with a frequency of 6.32 × 10^14 Hz. 675 nm 190 nm 475 nm 211 nm 229 nm

475 nm

What is the maximum number of d orbitals that are possible in a given shell? 9 6 3 1 5

5

Electromagnetic radiation with a wavelength of 575 nm appears as yellow light to the human eye. Determine the frequency of this light 1.92 * 10^-15 s^-1 5.22 * 10^14 s^-1 5.22 * 10^5 s^-1 1.73 * 10^11 s^-1 1.73 * 10^2 s^-1

5.22 * 10^14 s^-1

In which orbital below would an electron (on average) be farthest from the nucleus? 3s 5f 3d 2p 1s

5f

How many subshells are there in the shell with n = 6? 6 15 5 7 36

6

Calculate the wavelength (in nm) of the red light emitted by a neon sign with a frequency of 4.76 × 10^14 Hz. 630 nm 159 nm 776 nm 200 nm 476 nm

630 nm

Determine the longest wavelength of light required to remove an electron from a sample of potassium metal, if the binding energy for an electron in K is 1.76 × 10^3 kJ/mol. 68.0 nm 147 nm 885 nm 13 nm 387 nm

68.0 nm

Determine the shortest frequency of light required to remove an electron from a sample of Ti metal, if the binding energy of titanium is 3.14 × 10^3 kJ/mol. 4.74 x 10^15 Hz 6.19 x 10^15 Hz 2.11 x 10^15 Hz 1.27 x 10^15 Hz 7.87 x 10^15 Hz

7.87 * 10^15 Hz

Describe the difference between red light and blue light -450 nm corresponded to light in the red range and 700 nm corresponded to light in the blue range. -700 nm corresponded to light in the red range and 450 nm corresponded to light in the blue range. -Red light can be produced by only neon and blue light can be produced by various elements. -700 nm corresponded to light in both red and blue ranges but different light speed. -450 nm corresponded to light in both red and blue ranges but different light speed.

700 nm corresponded to light in the red range and 450 nm corresponded to light in the blue range.

Which of the following statements is true? -Part of the Bohr model proposed that electrons in the hydrogen atom are located in "stationary states" or particular orbits around the nucleus. -An orbital is the volume in which we are most likely to find an electron. -The uncertainty principle states that we can never know both the exact location and speed of an electron. -The emission spectrum of a particular element is always the same and can be used to identify the element. -All of the above are true.

All of the above are true

Which of the following occurs as the wavelength of a photon increases The frequency decreases. Planck's constant decreases. The speed decreases. The energy increases. None of the above occurs as the wavelength of a photon increases.

The frequency decreases