Evaluate the frequency and the amount of energy

Assignment Help Chemistry
Reference no: EM13548408

For UV light of wavelength 254 nm, calculate the frequency and the amount of energy absorbed by a single molecule when it absorbs a quantum of this light. (Remember ??=c, where c = 3.00 x 108m/s and E = h?, where h = 6.63 x 10-34 J·s) 1nm = 1x10-9m.


a. ? = 8.5 x 10-7 s-1 and E = 5.6 x 10-40 J

b. ? = 8.4 x 10-16s-1 and E = 5.6 x 10-49 J

c. ? = 1.2 x 106s-1 and E = 8.0 x 10-28 J

d. ? = 1.2 x 1015s-1 and E = 7.8 x 10-19 J

Reference no: EM13548408

Questions Cloud

Estimate the work done by the system of gasoline vapor : In a certain automobile engine with an efficiency of 21.2%, combustion of gasoline in one cylinder releases 505 J of heat. Find the work done by the system of gasoline vapor and air on the surroundings during one cycle
Explain the uv spectrum of acetone shows : The UV spectrum of acetone (c = 0.050 M in cyclohexane, l = 1cm cell) shows. max at 279 nm with an absorbance of 0.74. What is the molar absorptivity of acetone at this wavelength
Find what angle will it rotate through to do this : A particular motor can provide a maximum of 110.0 N • m of torque. Assuming that all of this torque is used to accelerate a solid, What angle will it rotate through to do this
How long will it take for the flywheel to accelerate : A particular motor can provide a maximum of 110.0 N • m of torque. Assuming that all of this torque is used to accelerate a solid, how long will it take for the flywheel to accelerate
Evaluate the frequency and the amount of energy : For UV light of wavelength 254 nm, calculate the frequency and the amount of energy absorbed by a single molecule when it absorbs a quantum of this light. (Remember ??=c, where c = 3.00 x 108m/s and E = h?, where h = 6.63 x 10-34 J·s) 1nm = 1x10-9..
Determine the rotational kinetic energy of earth : A simple model of the Earth includes a dense spherical core of radius 4200 km and a less dense spherical shell of thickness 2180 km, determine the rotational kinetic energy of Earth
Explain the 13c nmr spectra of cyclohexanone : How many absorptions would you expect to observe in the 13C NMR spectra of cyclohexanone
Case study-a not-for-profit medical research center : Develop a work breakdown structure, prepare a list of the specific activities that need to be performed to accom- plish the project objective.
Find the maximum velocity of the simple harmonic motion : A 4.00 kg mass is connected to a spring with a spring constant of 9.00 N/m. find the maximum velocity of the simple harmonic motion

Reviews

Write a Review

 

Chemistry Questions & Answers

  Evaluate the ph of the solution of aspirin tablets

HC9H7O4(aq) + H2O(l) image from custom entry toolH3O(aq) + C9H7O4(aq) Two aspirin tablets, each containing .325 g aspirin(along with a nonreactive "binder" to hold the tablet together), are dissolved in 200.0 mL of water. Calculate the pH of the ..

  A mixture of non-glucose components in blood is the solvent

The mass percent of glucose(C6H12O6) in human blood is 0.102%. The density of human blood @ 37 C is 1.08 Kg/L. Assume the mixture of non-glucose components in blood is the solvent.

  How many moles of excess reagent calcium hydroxide are left

a 0.500 l solution of 7.50 m hydrochloric acid is used to neutralize a 250.0 g sample of calcium hydroxide. calcium

  Explain what is the composition of the purge stream

What is the composition of the purge stream. What is the flow rate of gas leaving the separator. What is the flow rate of gas in the recycle line.

  Explain what is the theoretical economy of heating

What is the theoretical economy of heating A mixture of sodium carbonate and sodium bicarbonate ? sodium carbonate is the desired product and water and carbon dioxide are the undesirable wastes.

  State what is the reaction order with respect to no

Plot NO2 versus time, ln NO2 vs time, and 1/NO2 vs time. Which graph yields the best straight line? what is the reaction order with respect to NO2? Briefly explain

  Explain what is the theoretical yield of hydrazine

What is the theoretical yield of hydrazine, in grams, prepared from the reaction of 150.0mL of 1.01 M NH3 (aq) with 50.0 mL of 1.25 M NaOCl (aq)?

  Evaluate the final concentration of the solution

calculate the final concentration of the solution in each of the following: a)water added to 10.0 mL of a 3.50 M KNO3 solution gives a volume of .250 L. b)a 5.00-mL sample of a 18.0 M sucrose solution is diluted with water to 100

  Compute the molarity of acid

calculate the molarity of acid (or base) remaining in solution when 20mL of 0.400M HNO3 is added to 16.3mL of 0.258M NaOH?

  State souble in diethyl ehter but insoluble in both ethanol

A given compound has the following solubility properties. At room temperature, it is souble in diethyl ehter but insoluble in both ethanol and water At high temperatures,

  Explain the entropy change is positive

Predict whether the entropy change is positive or negative for each of the following reactions. Give reasons for your predictions.

  Depict the boundary surface diagrams atomic orbitals

Draw the boundary surface diagrams for the following atomic orbitals, including the appropiate axes. a) 4py

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd