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Spectroscopy
Page 2
Questions (279)
When will a scientist observe redshift in the spectrum of a distant space object?(1 point)
> when the object is moving away from
5 answers
asked by
Anonymous
903 views
Can someone please explain/interpret the gaseous and solid PCl5 in Raman and IR spectra.The details of spectrums are as follows:
3 answers
asked by
Anonymous
431 views
A solution of transferrin exhibits an absorbance of 0.463 at 470 nm in a 1.000-cm cell. Calculate the concentration of
3 answers
asked by
Anonymous
777 views
The surface magnetic field of the Sun is found by measurement of the extra width in spectral lines due to the ________ Effect.
3 answers
asked by
Lilly
431 views
ë for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value
2 answers
asked by
sarah
1,242 views
λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value
3 answers
asked by
Toni
2,132 views
please explain why the gem-dimethyl groups appear as separate peaks in the proton NMR spectrum of isoborneol although they
2 answers
asked by
Kendra
837 views
The hydrogen emission spectrum has four series (or sets) of lines named Balmer, Brackett, Paschen, and Lyman. Indicate the
4 answers
asked by
Sunny
979 views
Redshift is observed when:(1 point)
Responses A. a luminous object is stationary relative to an observer. B. a distant luminous
4 answers
asked by
Lizziliya hernandez
241 views
A portion of the high-resolution emission spectrum of a one-electron atomic species is shown below. The highest energy series is
3 answers
asked by
caity
368 views
Consider a sample of excited atoms that lie 3.211 × 10–19 J above the ground state. Determine the emission wavelength (in
2 answers
asked by
Anisha
540 views
Compare the IR spectrum of benzoin ) with the IR spectrum of benzil . Explain how the changes in the important peaks are related
3 answers
asked by
John
1,156 views
Compare the IR spectrum of benzoin ) with the IR spectrum of benzil . Explain how the changes in the important peaks are related
3 answers
asked by
John
750 views
Why is a blank solution used in absorption spectroscopy? I know it is to nullify the reflection, refraction, and diffraction
3 answers
asked by
Sandy
1,168 views
Fish-liver oil is a good source of Vitamin A. When 0.1232 g of fish liver oil is dissolved in 500. mL of solvent, an absorbance
3 answers
asked by
dave
509 views
the complex ion[Ti(H2O)6]^3+ has a maximum absorption wavelength of 512 nm. Calculate the energy change in joules per ion.
3 answers
asked by
kelsie
691 views
How do astronomers use spectroscopy when studing light?
2 answers
asked anonymously
26 views
A sample containing 2.7 x 10-4 M green fluorescent protein shows an absorbance of 0.651 at 509 nm. Calculate its molar
2 answers
asked by
Hailey
56 views
Which information about objects in space can spectroscopy provide? Select the two correct answers.
Responses temperature
2 answers
asked anonymously
108 views
Which does the shift of the hydrogen absorption spectrum of a galaxy provide evidence for?
1 answer
asked by
Sayge
228 views
A solution containing 10-5 M ATP has a transmission %70 at 260 nm in a 1 cm cuvette. Calculate the absorbance of the solution
1 answer
asked by
Y.Nassar
442 views
If the %T (Transmittence) of a sample is found to be (3.45 x 10^1) %, what is the absorbance of this solution?
4 answers
asked by
Anne
521 views
(i can't upload an image so i have to explain the spectrum)
My spectrum has peaks at 0.85 ppm (integration = 1.49) 1.2 ppm
2 answers
asked by
Sarah
479 views
using the measured value of the extinction coefficient for CV ( extinction coefficient = 87,000 M−1 cm−1 ) calculate the
1 answer
asked by
Jamera
376 views
using the measured value of the extinction coefficient for CV ( extinction coefficient = 87,000 M−1 cm−1 ) calculate the
1 answer
asked by
Jamera
363 views
When will a scientist observe redshift in the spectrum of a distant space object
3 answers
asked anonymously
116 views
Which following assertions are true ?
- unanswered 13C NMR is more sensitive than 1H NMR because of the 1.1% natural abundance of
1 answer
asked by
Abd
678 views
Compare the IR spectrum of benzoin ) with the IR spectrum of benzil . Explain how the changes in the important peaks are related
1 answer
asked by
John
671 views
Identify the following compound from its IR and proton NMR spectra. C5H6O: IR: 3300 (sharp), 2102, 1634 cm–1 NMR: δ 3.10 (1H,
1 answer
asked by
Anonymous
1,109 views
In generating the synchronous spectrum, it is not necessary to specify the wavelength range, why?
1 answer
asked by
Lily
303 views
A new food colorant has a molar absorptivity of 3.8x 10^3 cm^-1M^-1 at 510 nm: (1) what will be the absorbance of a 2X10^-4 M
1 answer
asked by
knolan
456 views
this one is dealing with H NMR...
The compound is N,N-dimethylacetamide. Why would there be 2 distinct peaks from the 2 Methyl
1 answer
asked by
jon
434 views
this one is dealing with H NMR...
The compound is N,N-dimethylacetamide. Why would there be 2 distinct peaks from the 2 Methyl
1 answer
asked by
jon
460 views
1. Spectroscopic studies of the reaction of azide ion with the cluster [Ru3(CO)12] in acetone solvent confirmed the occurrence
1 answer
asked by
Jade
418 views
Cu+ reacts with neocuproine to form the coloured complex (neocuproine)2Cu+, with an absorption maximum at 454 nm. Neocuproine is
3 answers
asked by
panchi
1,369 views
λ for one line of the hydrogen spectrum is .4118 x 10-4 cm. Use this value in the Rydberg equation to calculate the RH value
2 answers
asked by
Mary
1,030 views
We were given an unknown to identify using UV-VIS spec based on the wavelength of maximum absorbance and the shape of the curve
3 answers
asked by
Anonymous
480 views
Frank and Oswalt report a molar absorptivity of 4700 L mol^-1 cm^-1 for thiocyanatoiron(lll) ion. What absorbance would you
3 answers
asked by
Mariah
625 views
How do I make an IR Spectrum of C6H12S2 (Allyl Propyl Disulfide)
1 answer
asked by
Em
297 views
what type of feature will be observd in the ei mass spectrum of chlorobenzene?
2 answers
asked by
kay
556 views
Write a short essay and use subtitles for each paragraph like "what is spectroscopy?", "what is infrared spectroscopy", ETC.
Topi
3 answers
asked anonymously
92 views
Write a short essay and use subtitles for each paragraph like "what is spectroscopy?", "what is infrared spectroscopy", ETC.
Topi
3 answers
asked anonymously
78 views
Complete the following assignment and post it in the Discussion Board. You will also be required to comment on two of your
3 answers
asked anonymously
59 views
A student proposes to use visible spectroscopy to measure the kinetics of the permanganate/oxalic acid reaction. The initial
2 answers
asked by
Amy
812 views
what are the Uses of Infrared Spectroscopy?
3 answers
asked anonymously
41 views
A short paragraph of what are the Uses of Infrared Spectroscopy?
3 answers
asked anonymously
39 views
1. Below are the IR and 1H NMR spectra for a compound with the molecular formula of C11H16O. List all the possible information
2 answers
asked by
Ankita
682 views
The absorbance of a chlorophyll a standard solution in ethanol (density = 0.785 g/mL) is measured in
a 1.3 cm cuvette or path
2 answers
asked by
Shardae.
507 views
Why do we only see four peaks in the 1H NMR when we have five CH2 groups and 2 OH groups?
Answer a. There should be more peaks,
2 answers
asked by
Jay
652 views
An unknown was prepared with the concentration of 0.000520 M. A Beer's Law plot was prepared using the absorbance values from
1 answer
asked by
anchal
459 views
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