Frequency Spectrum Interview Questions 

In a dilute solution (0.04M) shows an OHstr at approx 3630; a 1M soln show the OHstr at approx 3330. Propose an explanation. So basically the more concentrated the soln is the less frequency there is. Why?

Which transition would emit light with the highest frequency (shortest wavelength)?
from n = _____ to n = ____

Which transition would emit light with the lowest frequency (longest wavelength)?
from n = _____ to n = ____

n a dilute solution (0.04M) of 1-methylcyclohexano it shows an OHstr at approx 3630; a 1M soln show the OHstr at approx 3330. Propose an explanation. So basically the more concentrated the soln is the less frequency there is. Why?

i want to keep my stock stereo head in my kia spectra sx and add subs. what would i need to create rca outputs and then cut all low frequencies to the speakers

4. In the determination of the NMR spectra of ultra-pure 2-phenyl-1-ethanol; four signals were generated: one signal was a broad signal stretching from 7.3 to 6.9 ppm, which on better resolution in a higher radio frequency NMR spectrophotometer showed this signal to actually be three signals of integrated peak heights of 2:1:2 ratio, respectively; a triplet (symmetric, J = 7 Hz) at 2.3 ppm; a quartet, almost symmetric, at 2.9 ppm; and a symmetric triplet (J=7 Hz) at 2.0 ppm. When a drop pf sulfuric acid was added to the sample, one of the signals simplified to a broadened singlet that moved to 3.5 ppm. Which signal did this?

A) The signal at 6.9 to 7.3 ppm
B) The signal at 2.9 ppm
C) The signal at 2.3 ppm
D) The signal at 2.0 ppm

5. Prove a structure that is consistent with the data below.

C7H16O
IR (cm-1): 3200-3600 (broad), 2950
1H NMR (d): 2.8 (1H, broad s), 1.0 (6H, s), 0.9 (9H, s)
13C NMR (d): 68 (s), 39 (s), 16 (q), 13 (q)

For a physics project I'm working on I need to know some differences between first and second order light spectrums. And frankly, I don't know any. Is there anything different between them specifically with wavelength or frequency? What makes light second or first order?

I understand that it is thought that ghosts are energy. Heat is a form of energy. They pull in the energy (heat) from around you as they move by making the area around them and you cold. But wouldn't there be an area that feels hot or wouldn't there be a noticeable temperature difference (ie hotter than the normal room temperature). I mean, I can be outside standing by a fire, feeling both the cold spots and the heat from the fire.

What do you think?

Also, I've watched TV shows where they record ghosts on something asking them questions. Its believed that they are on a higher or lower frequency when they speak. So the tape is either slowed down or sped up to accommodate the difference in wavelength to bring it into the spectra of human hearing. When they play back the tape, why can I hear people speaking normally (normal playback speed) but also hear what they believe to be the ghosts speaking. Wouldn't the human voices be slowed or sped up during playback to hear the ghostly voices?

Saturate

We are the electrons in this cell
The cell we call our world
We are nothing but a frequency of sound
Paramagnetic to the space surrounding us
To the nuclei, which holds us down
In this container the atmosphere creates
Were particles colliding
Each looking for our individual space
Eventually bonding with those to our attraction
Like a beta particle
Its life, in action
All this potential energy
Our personal power within
We have the will to create or destroy
Just by allowing ourselves
To feel underneath our skin
For emotions are energy
And energy is conserved
Never broken down
Then it seems to drop
Simultaneously, its back at the top
This is called infinity-
This is life in death
You see it every day
Each time the sun rises
And each time it fades away


Let us break our selves down
And see it in the empirical form
Lets become the solvents
The medium that is the change
Were just a huge mass of water
Inevitably connected to the next
Lets evaporate, let everything be less complex
Floating astray, off into the unknown
As our astral consciousness
Play with spectrums of light
Each color, a feeling of its own
Blue, red, green and gold to welcome you
Quantum’s of power that beckon you to live this life
And together reach ground state
Slide down these double helixes
And make many mistakes
Manipulate time
Bend light
-----Saturate,
Into this endless flow of energy
Whose effects are subtly seen
This is why it becomes so hard
To be able to read in-between
Wake up and feel your spontaneous pulls
You feel for a reason
Their one of your most vital tools
Because we are all atoms
With orbits of energy
Seeking a comfortable phase
By weighing our emotional balance
We will find our way thru this maze

The question was raised: "If a man alone in the woods speaks, and his wife cannot hear him, is he still wrong?"

I have considered this question in light of the principles of Modern Physics and offer my thesis, dedicated to my wife, who anchors me in reality.

In the year 1900 Max Planck discovered that the energy of light is quantified. In 1905 Albert Einstein used Planck's Constant to write the theory of the Photoelectric Effect, that light behaves as a particle when it comes to energy transfer. Louis de Broglie proposed that particles can have a wave nature and this fact was later verified.

These discoveries led Neils Bohr to propose a radical theory of the atom, which was partially successful in explaining the emission spectra of the hydrogen atom. Neils Bohr was compelled to introduce the Principle of "Complementarity," that light is both a particle and a wave.

The modern theories were extended when Max Born showed that the distribution of energy was a function of probability. Further, Warner Heisenberg wrote the Principle of Uncertainty, which says that it is impossible to determine the exact location of an electron and the vector direction of its momentum at the same time.

This was followed with the master stroke penned by Erwin Schrodinger. Using the "Psi function" of Quantum Mechanics, Schrodinger could map the "wave field" of any particle, thus giving us a theoretical explanation for the structure of an atom and the entire periodic table of the elements.

The Quantum mechanics predicts that a wave of a single frequency would stretch out to infinite proportions, the superposition of a narrow range of frequencies produces a standing wave function which can be localized to a much more precise location. Thus the electron and its position within an atom becomes a cloud of probability.

From this I infer that there are such states as being right and being wrong, within certain parameters of uncertainty. Applying the Psi function, the more vague the statement of the man the greater the probability of him being correct. The narrower and more specific his utterance the greater the likelihood of his being wrong.

Also, the Principle of Complementarity assures us that if a man alone in the woods speaks, and his wife can not hear him, he is BOTH right and wrong until he comes out of the woods.

In the analogy of Schrodinger's Cat, the cat in the box is both dead and alive until someone opens the lid. The act of observing the phenomenon determines the outcome.

Thus, the inevitable conclusion is that it doesn't matter what the man says only his wife can determine whether or not he is correct.

what is the number of electrons in the outermost energy level of an oxygen atom
A)6 B)4 C)8 D)2

how many unpaired electrons are in a sulfur atom
a)1 B)0 C)2 D)3

How many half filled orbitals are in a bromine atom
a)3 b)1 c)4 d)2

how are the frequency and wavelength of light related?
a) frequency equals wavelength divided by the speed of light.

b) wavelength is determined by dividing frequency by the speed of light

C) they are inversely proportional to each other.

The light given off by an electric discharge through sodium vapor is ___
a)of a single wavelength
b)a continuous spectrum
C)an emission spectrum
D)white light

which of the following electromagnetic waves have the highest frequencies?
a) x rays
b) ultraviolet light waves
c) gamma range
d) microwaves

What is the difference between a wave form graph and a sound spectrum graph for a complex sound? Which graph best illustrates the harmonic moion of sound. Which graph best illustrates which frequencies are the loudest in a complex sound?

I'm confused about sample problems in my book. I don't want the calculation because I'm hoping to figure out how to do these on my own if I have the answers. If you don't know all, feel free to answer what you do know. I renumbered them in order for your convenience.

1) Calculate the wavelength, in nanometers, of visible light having a frequency of 4.37 x 1014s-1.
A) 12.0 nm
B) 343 nm
C) 686 nm
D) 674 nm
E) None of the above

2) For the hydrogen atom, En = -(1/n2)RH, where RH = 2.18 x 10-18 J. The wavelength of the transition from the ground state to the n = 3 state is:
A) 1.03 x 10-7 m
B) 6.56 x 10-8 m
C) -1.03 x 10-7 m
D) -6.76 x 10-8 m
E) 4.27 x 10-8 m
3) Which of the following is not a possible value of ml for an electron with l = 2?
A) -1
B) 0
C) +1
D) +2
E) +3 I SUSPECT IT IS E
4) The set of quantum numbers that correctly describes an electron in a 3p orbital is:
A) n = 3; l = 0; ml = 0; ms = 0
B) n = 3; l = 2; ml = -2, -1, 0, 1, or 2; ms = +1/2 or -1/2
C) n = 3; l = 1; ml = -1, 0, or 1; ms = +1/2 or - 1/2
D) n = 4; l = 0; ml = -1, 0, or 1; ms = +1/2 or -1/2
E) None of the above
5) What is the total number of orbitals associated with the principal quantum number n = 2?
A) 1
B) 2
C) 3
D) 4
E) None of the above MY GUESS IS E
6) What is the maximum number of electrons that can be accommodated in the shell with n = 4?
A) 32
B) 18 MY GUESS
C) 24
D) 10
E) None of the above
7) An atom of chromium has ___ unpaired electrons and is ___.
A) 3, diamagnetic
B) 5, diamagnetic
C) 3, paramagnetic
D) 5, paramagnetic
E) 6, paramagnetic
8) The electronic configuration and filling order of the element whose atomic number is 26 is:
A) 1s22s22p63s23p64s03d8
B) 1s22s22p63s23p63d64s2
C) 1s22s22p63s23p64s23d6
D) 1s22s22p63s23p64s23d44p2
E) None of the above
9) An atom in its ground state contains 33 electrons. How many of these electrons are in p orbitals?
A) 15 MY GUESS
B) 12
C) 3
D) 33
E) None of the above

10) Using the noble gas core designation, which of the configurations below correctly describes the ground state electron configuration of Cu?
A) [Ne]4s23d9
B) [Ar]4s23d9
C) [Kr]4s13d10
D) [Ar]4s13d10
E) None of the above
11) Emission spectra:
A) cannot be used to identify an unknown atom
B) can be used to identify unknown atoms
C) can be explained by the movement of protons colliding with electrons
D) none of the above
12) Energy emission by an electron is an energy releasing process, while energy absorption requires an input of energy.
A) True
B) False

This is kind of a lot. Even if you don't know some of it, please tell me what you do know. I'm at a stopping point here, thanks. :)

2. How long does it take for light to travel across the diameter of Earth's orbit around the sun?

3. How did Michelson know the time that light took to make the round-trip to the distant mountain?

4. How long does light take to travel from the sun to earth? From the star alpha centauri to earth?

5. How long does light take to travel a distance of one light-year?

6. What is the source of electromagnetic waves? I started to put light..i have no idea though.

7. Is the color spectrum simply a small segment of the electromagnetic spectrum? Defend your answer.

8. How do the frequesncies of infared, visible and ultraviolet light compare?

9. How does the role of inertia relate to the rate at which electric charges can be forced into vibration?

10. Different bells and tuning forks have their own natural vibrations, and emit their own tones when struck. How is this analogous to atoms, molecules, and light?

11. Light incident upon a pane of glass slows down in passing through the flass. Does it emerge at a slower speed or at its initial speed? Explain.

12. Will glass be transparent to frequencies of light that match its own natural frequencies?

Chemistry Study guide! Help ! Test next week!?
Question 1: A photon that has a wavelength of 500 nm would be:
a. Ultra-violet light
b. Green light
c. Red light
d. Infra-red light

Question 2: A photon that has a wavelength of 700 nm would be:
a. Ultra-violet light
b. Green light
c. Red light
d. Infra-red light

Question 3: Which of these forms of radiation has the highest frequency?
a. microwaves
b. radio waves
c. visible light
d. x-rays

Question 4: Which of these forms of radiation has the lowest frequency?
a. microwaves
b. radio waves
c. visible light
d. x-rays

Question 5: What is the frequency of light if the wavelength is 514 nm?
a. 1.71 x 10 -15 Hz
b. 5.84 x 10 5 Hz
c. 5.84 x 10 14 Hz
d. 5.84 x 10 16 Hz

Question 6: What is the frequency of light if the wavelength is 3950 angstroms?
a. 7.59 x 10 4 Hz
b. 7.59 x 10 12 Hz
c. 7.59 x 10 13 Hz
d. 7.59 x 10 14 Hz

Question 7: A microwave photon has a frequency of 6.50 x 1011 Hz. What is the wavelength?
a. 4.62 x 10 -4 m
b. 4.62 x 10 -3 m
c. 2.16 x 10 2 m
d. 2.16 x 10 3 m

Question 8: What is the energy of a photon that has a frequency of 5.43 x 1013 Hz?
a. 1.22 x 10 -47 J
b. 3.60 x 10 -47 J
c. 3.60 x 10 -20 J
d. 8.19 x 10 46 J

Question 9: What is the energy of a photon that has a wavelength of 955 nm?
a. 6.33 x 10 -40 J
b. 2.08 x 10 -37 J
c. 6.33 x 10 -22 J
d. 2.08 x 10 -19 J

Question 10: What is the wavelength of a photon that has an energy of 3.00 x 10-20 J?
a. 2.21 x 10 -14 m
b. 6.6.3 x 10 -6 m
c. 6.63 x 10 6 m
d. 4.52 x 10 13 m

Question 11: Which of the following is NOT an experiment that helped to overturn classical physics?
a. atomic line spectra
b. gaseous effusion
c. black body radiation
d. photoelectric effect

Question 12: Which quantum number describes the shape of an orbital?
a. principle quantum number, n.
b. angular momentum quantum number, l (lower case L; not the # “one”).
c. magnetic moment quantum number, ml.
d. magnetic spin quantum number, ms.

Question 13: Which quantum number specifies which shell an electron is in?
a. principle quantum number, n.
b. angular momentum quantum number, l (lower case L; not the # “one”).
c. magnetic moment quantum number, ml.
d. magnetic spin quantum number, ms.

Question 14: Which quantum number specifies the orientation of the orbital?
a. principle quantum number, n.
b. angular momentum quantum number, l (lower case L; not the # “one”).
c. magnetic moment quantum number, ml.
d. magnetic spin quantum number, ms.

Question 15: Which orbital shape can be described as “spherical”?
a. d
b. f
c. p
d. s

Question 16: Which orbital shape can be described as a “dumbbell”?
a. d
b. f
c. p
d. s

Question 17: “f” orbitals come in groups of:
a. 1
b. 3
c. 5
d. 7

Question 18: “p” orbitals come in groups of:
a. 1
b. 3
c. 5
d. 7

Question 19: How many orbitals in an atom can have the designation “5d”?
a. 1
b. 3
c. 5
d. 7

Question 20: How many orbitals in an atom can have the designation “n=2”?
a. 2
b. 3
c. 4
d. 5

Visit the website: http://jersey.uoregon.edu/vlab/elements/...

Click on the "Emission " icon (the right bullet circle on the screen) to change the display to emission spectra. Select the element Helium (He). Please give the wavelength in Angstroms, frequency and energy of the yellow emission. Place the cursor on emission line and hold down the mouse button to display the wavelength of that line in Angstroms (1 Angstrom = 0.1 nm = 1x10-10 m).


I can't seem to get the Angstrom reading right. I need the Angstroms reading (wavelength) to calculate Frequency and Energy. I just don't know how to read that emission chart to find the wavelength.