Emission of Light from Hydrogen and Metal AtomsHydrogen Emission LinesWavelengthScale Reading (from calibrationcurve)AssignedTransitionLine660656nm3-221480486nm4-725-72430430nm322410nm4.

A question based on quantitative analysis, which is to be accomplished.

Answered: Hydrogen Emission Lines Wavelength…

Fundamentals Of Analytical Chemistry

9th Edition

ISBN:9781285640686

Author:Skoog

Publisher:Skoog

Chapter28: Atomic Spectroscopy

Section: Chapter Questions

Problem 28.11QAP

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It has been suggested that spacecraft could be powered by the pressure exerted by sunlight striking a sail. The force exerted on a surface is the momentum p transferred to the surface per second. Assume that photons of 6000 Å light strike the sail perpendicularly. How many must be reflected per second by 1cm2 of surface to produce a pressure of 106 atm?
Calculate the energy of photon having: a a wavelength of 5.42106m; b a frequency of 6.691013s1; c a wavelength of 3.27nm; d a frequency of 106.5MHz 1Hz=1hertz=1s1; this unit is often used for frequency; e a wavenumber of 4321cm1.
The speed of sound in dry air at 20°C is 343.5ms1 , and the frequency of the sound from the middle C note on a piano is 261.6s1 (according to the American standard pitch scale). Calculate the wavelength of this sound and the time it will take to travel 30.0 m across a concert hall.
Light with a wavelength of 2.50107m falls on the surface of a piece of chromium in an evacuated glass tube. If the work function of chromium is 7.211019J , determine (a) the maximum kinetic energy of the emitted photoelectrons and (b) the speed of photoelectrons that have this maximum kinetic energy.
The photoelectric effect is used today to make light-sensitive detectors; when light hits a sample of metal in a sealed compartment, a current of electrons may flow if the light has the proper wavelength. Cesium is a desirable component for such detectors. Why?
Compare the mass of the electron, me, with a the reduced mass of a hydrogen atom; b the reduced mass of a deuterium atom (deuterium=2H); c the reduced mass of a carbon 12 atom having a +5 charge, that is, C5+. Suggest a conclusion to the trend presented by parts a-c.
What is the frequency of light having the following wavelengths? a 1.00m b 4.77105m c 7894A d 1.903103m
Convert a a wavelength of 218A to cm1, b a frequency of 8.0771013s1 to cm1, c a wavelength of 3.31m to cm1.
Suppose an atom in an excited state can return to the ground state in two steps. It first falls to an intermediate state, emitting radiation of wavelength 1 , and then to the ground state, emitting radiation of wavelength 2 . The same atom can also return to the ground state in one step, with the emission of radiation of wavelength . How are 1,2, and related? How are the frequencies of the three radiations related?
Explain why the wave model for radiation cannot account for the photoelectric effect.
What is the difference between continuous and discrete spectra?
In a FranckHertz experiment on sodium atoms, the first excitation threshold occurs at 2.103 eV. Calculate the wavelength of emitted light expected just above this threshold. (Note: Sodium vapor lamps used in street lighting emit spectral lines with wavelengths 5891.8 and 5889.9 Å.)

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Hydrogen Emission Lines Wavelength Scale Reading (from calibration curve) Assigned Transition Line 660 656 nm 3-72 486 nm4-72 ךכל 480 430 430nm 6-22 410 nm 3.