Question

A compound has a strong absorption at 2.11x1016 Hz. What is the λmax( in Å (angstroms))...

A compound has a strong absorption at 2.11x1016 Hz. What is the λmax( in Å (angstroms)) for this compound? ( Write answer in decimal form to one decimal place, for example, if answer is 75.667 then write as 75.7)

Science   Chemistry   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

The compound absorbs at a frequency of 2.11 * 10 16 Hz.

So, this has to be interms of wavelength (Ao).

The relation between frequency and wavelength is Frequency = Velocity of light / Wavelength

Frequency = 2.11 * 10 16 Hz. = 2.11 * 10 16 sec-1

Velocity of light = 3 * 10 8 metres. sec-1

Wavelength = 3 * 10 8 metres. sec-1/ 2.11 * 10 16 sec-1 = 1.42 * 10 -8 metres.

1 angstrom = 10 -10 metres

   ??? Angstroms = 1.42 * 10 -8 metres

==> 142 Angstroms = 14.2 nanometres

*** The compound absorbs maximum at the wavelength of 142 Angstroms.

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
Lab is Infrared Spectroscopy and Functional Groupd Identification a) A compound that has a strong, sharp...
Lab is Infrared Spectroscopy and Functional Groupd Identification a) A compound that has a strong, sharp absorption bands at 1710cm-1 and a broadband at 3350cm-1. Will this be an acid always and if so what acid? b) A compound has no absorption at 1710cm-1, but a broad band at 3350cm-1. Would this be alcohol and any particular alcohol if so?
A compound has an IR absorption band near 1700 cm-1, 1H NMR signal between 9 and...
A compound has an IR absorption band near 1700 cm-1, 1H NMR signal between 9 and 10 δ, and a 13C NMR signal near 200 δ . What is this compound most likely? Carboxylic acid, ketone, alcohol, or aldehyde.?   
For the photoelectric effect, what is the differential absorption of x-rays in bone (Z = 20,...
For the photoelectric effect, what is the differential absorption of x-rays in bone (Z = 20, density = 1,786) relative to fatty tissue (Z = 6.2, density = 905) ? Round your answer to one decimal place.
An atom of rhodium (Rh) has a diameter of about 2.7×10−8cm. What is the radius of...
An atom of rhodium (Rh) has a diameter of about 2.7×10−8cm. What is the radius of a rhodium atom in angstroms (Å)? r = 1.4 Å What is the radius of a rhodium atom in meters (m)? r = 1.4×10−10 ### How many Rh atoms would have to be placed side by side to span a distance of 9.5 μm ? Express your answer using two significant figures. ### If the atom is assumed to be a sphere, what is...
The fluorocarbon compound C2Cl3F3 has a normal boiling point of 47.6 ∘C. The specific heats of...
The fluorocarbon compound C2Cl3F3 has a normal boiling point of 47.6 ∘C. The specific heats of C2Cl3F3(l) and C2Cl3F3(g) are 0.91 J/g⋅K and 0.67 J/g⋅K, respectively. The heat of vaporization for the compound is 27.49 kJ/mol. Part A Part complete Calculate the heat required to convert 51.5 g of C2Cl3F3 from a liquid at 13.95 ∘C to a gas at 75.65 ∘C. Express your answer using one decimal place.
A compound, C10H14, shows an IR peak at 745 cm-1. Its 1H NMR spectrum has peaks...
A compound, C10H14, shows an IR peak at 745 cm-1. Its 1H NMR spectrum has peaks at delta 7.18 (4 H, broad singlet), 2.70 (4 H, quartet, J=7 Hz), and 1.20 (6 H, triplet, J=7 Hz). Draw its structure in the window below. You do not have to consider stereochemistry. You do not have to explicitly draw H atoms. In cases where there is more than one answer, just draw one.
1. If a wind instrument, such as a tuba, has a fundamental frequency of 30.1 Hz,...
1. If a wind instrument, such as a tuba, has a fundamental frequency of 30.1 Hz, what is its first overtone? It is closed at one end and the speed of sound is 334 m/s. 2. Find the length of an organ pipe closed at one end that produces a first overtone frequency of 276 Hz when air temperature is 21.3ºC . 3. A “showy” custom-built car has two brass horns that are supposed to produce the same frequency but...
1. What is the maximum electric field strength in an electromagnetic wave that has a maximum...
1. What is the maximum electric field strength in an electromagnetic wave that has a maximum magnetic field strength of 7.4 × 10-4 T ? Answer to the nearest whole number of kiloVolts per meter (kV/m). No need to include the units. 2. A radio station utilizes frequencies between commercial AM and FM. What is the frequency of a 46-m-wavelength channel? Answer to 2 decimal place precision the number of MegaHertz (MHz). No units required. 3. During normal beating, the...
7. A compound has the empirical formula CH and a molar mass of 78.11 g/mol. What...
7. A compound has the empirical formula CH and a molar mass of 78.11 g/mol. What is its molecular formula? 8. Upon combustion, a compound containing only carbon and hydrogen produces 1.83 g CO2 and 0.901 g H2O. Find the empirical formula of the compound. 9. Write a balanced equation for the reaction between solid cobalt(III) oxide and solid carbon to produce solid cobalt and carbon dioxide gas.
Many teachers are concerned about grade inflation. Assume that GPA is normally distributed with mean μ...
Many teachers are concerned about grade inflation. Assume that GPA is normally distributed with mean μ = 2.6 and standard deviation σ = 0.5. Use this data to answer the following: a.) What is the probability that a randomly selected student has a GPA of 3.6 or higher? Write answer as decimal rounded to the thousandth place. b.) What percentage of students has a GPA of 3.0 or lower? Write answer as decimal rounded to the thousandth place. c.) What...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT