General Chemistry
11th Edition
ISBN: 9781305859142
Author: Ebbing, Darrell D., Gammon, Steven D.
Publisher: Cengage Learning,
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Chapter 7, Problem 7.120QP
Light with a wavelength of 405 nm fell on a strontium surface, and electrons were ejected. If the speed of an ejected electron is 3.36 × 105 m/s, what energy was expended in removing the electron from the metal? Express the answer in joules (per electron) and in kilojoules per mole (of electrons).
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Chapter 7 Solutions
General Chemistry
Ch. 7.1 - The frequency of the strong red line in the...Ch. 7.1 - The element cesium was discovered in 1860 by...Ch. 7.1 - Laser light of a specific frequency falls on a...Ch. 7.2 - The following are representative wavelengths in...Ch. 7.3 - Calculate the wavelength of light emitted from the...Ch. 7.3 - What is the difference in energy levels of the...Ch. 7.3 - An atom has a line spectrum consisting of a red...Ch. 7.4 - Calculate the wavelength (in picometers)...Ch. 7.4 - A proton is approximately 2000 times heavier than...Ch. 7.5 - Explain why each of the following sets of quantum...
Ch. 7 - Give a brief wave description of light. What are...Ch. 7 - What is the mathematical relationship among the...Ch. 7 - Prob. 7.3QPCh. 7 - Planck originated the idea that energies can be...Ch. 7 - In your own words, explain the photoelectric...Ch. 7 - Prob. 7.6QPCh. 7 - Prob. 7.7QPCh. 7 - Prob. 7.8QPCh. 7 - Explain the main features of Bohrs theory. Do...Ch. 7 - Prob. 7.10QPCh. 7 - Prob. 7.11QPCh. 7 - Prob. 7.12QPCh. 7 - Prob. 7.13QPCh. 7 - Prob. 7.14QPCh. 7 - Bohr described the hydrogen atom as an electron...Ch. 7 - Give the possible values of a. the principal...Ch. 7 - What is the notation for the subshell in which n =...Ch. 7 - Prob. 7.18QPCh. 7 - Which of the following statements about a hydrogen...Ch. 7 - Which of the following statements is (are) true?...Ch. 7 - Of the following possible transitions of an...Ch. 7 - What wavelength of electromagnetic radiation...Ch. 7 - Light Energy, and the Hydrogen Atom a Which has...Ch. 7 - Investigating Energy Levels Consider the...Ch. 7 - Consider two beams of the same yellow light....Ch. 7 - Prob. 7.26QPCh. 7 - One photon of green light has less than twice the...Ch. 7 - An atom in its ground state absorbs a photon...Ch. 7 - Three emission lines involving three energy levels...Ch. 7 - An atom emits yellow light when an electron makes...Ch. 7 - Which of the following particles has the longest...Ch. 7 - Imagine a world in which the rule for the l...Ch. 7 - Given the following energy level diagram for an...Ch. 7 - The following shapes each represent an orbital of...Ch. 7 - Radio waves in the AM region have frequencies in...Ch. 7 - Microwaves have frequencies in the range 109 to...Ch. 7 - Light with a wavelength of 478 nm lies in the blue...Ch. 7 - Calculate the frequency associated with light of...Ch. 7 - At its closest approach, Mercury is 77.3 million...Ch. 7 - The space probe Pioneer 11 was launched April 5,...Ch. 7 - The meter was defined in 1963 as the length equal...Ch. 7 - The second is defined as the time it takes for...Ch. 7 - What is the energy of a photon corresponding to...Ch. 7 - What is the energy of a photon corresponding to...Ch. 7 - The green line in the atomic spectrum of thallium...Ch. 7 - Molybdenum compounds give a yellowish-green flame...Ch. 7 - A particular transition of the rubidium atom emits...Ch. 7 - Selenium atoms have a particular transition that...Ch. 7 - An electron in a hydrogen atom in the level n = 5...Ch. 7 - Calculate the frequency of electromagnetic...Ch. 7 - The first line of the Lyman series of the hydrogen...Ch. 7 - What is the wavelength of the electromagnetic...Ch. 7 - Calculate the shortest wavelength of the...Ch. 7 - Calculate the longest wavelength of the...Ch. 7 - What is the difference in energy between the two...Ch. 7 - What is the difference in energy between the two...Ch. 7 - What is the wavelength of a neutron traveling at a...Ch. 7 - What is the wavelength of a proton traveling at a...Ch. 7 - At what speed must an electron travel to have a...Ch. 7 - At what speed must a neutron travel to have a...Ch. 7 - What is the de Broglie wavelength of a 149-g...Ch. 7 - What is the de Broglie wavelength of an oxygen...Ch. 7 - If the n quantum number of an atomic orbital is 4,...Ch. 7 - The n quantum number of an atomic orbital is 5....Ch. 7 - How many subshells are there in the M shell? How...Ch. 7 - How many subshells are there in the N shell? How...Ch. 7 - Give the notation (using letter designations for...Ch. 7 - Give the notation (using letter designations for...Ch. 7 - Explain why each of the following sets of quantum...Ch. 7 - State which of the following sets of quantum...Ch. 7 - The blue line of the strontium atom emission has a...Ch. 7 - The barium atom has an emission with wavelength...Ch. 7 - The energy of a photon is 2.70 1019 J. What is...Ch. 7 - The energy of a photon is 3.05 1019 J. What is...Ch. 7 - The photoelectric work function of a metal is the...Ch. 7 - The photoelectric work function for magnesium is...Ch. 7 - Light of wavelength 345 nm shines on a piece of...Ch. 7 - Light of wavelength 285 nm shines on a piece of...Ch. 7 - Calculate the wavelength of the Balmer line of the...Ch. 7 - Calculate the wavelength of the Balmer line of the...Ch. 7 - One of the lines in the Balmer series of the...Ch. 7 - A line of the Lyman series of the hydrogen atom...Ch. 7 - A hydrogen-like ion has a nucleus of charge +Ze...Ch. 7 - Prob. 7.84QPCh. 7 - An electron microscope employs a beam of electrons...Ch. 7 - Neutrons are used to obtain images of the hydrogen...Ch. 7 - What is the number of different orbitals in each...Ch. 7 - What is the number of different orbitals in each...Ch. 7 - List the possible subshells for the n = 6 shell.Ch. 7 - Prob. 7.90QPCh. 7 - Prob. 7.91QPCh. 7 - Prob. 7.92QPCh. 7 - Prob. 7.93QPCh. 7 - Prob. 7.94QPCh. 7 - What wavelength of electromagnetic radiation...Ch. 7 - AM radio stations broadcast at frequencies between...Ch. 7 - A particular microwave oven delivers 750 watts. (A...Ch. 7 - A ruby laser puts out a pulse of red light at a...Ch. 7 - The retina of the eye contains two types of...Ch. 7 - Ozone in the stratosphere absorbs ultraviolet...Ch. 7 - Prob. 7.101QPCh. 7 - The photoelectric work function of potassium is...Ch. 7 - Prob. 7.103QPCh. 7 - Prob. 7.104QPCh. 7 - Light of wavelength 1.03 107 m is emitted when an...Ch. 7 - A hydrogen atom in the ground stale absorbs a...Ch. 7 - Prob. 7.107QPCh. 7 - It requires 799 kJ of energy to break one mole of...Ch. 7 - The root-mean-square speed of an oxygen molecule,...Ch. 7 - Prob. 7.110QPCh. 7 - In X-ray fluorescence spectroscopy, a material can...Ch. 7 - For each of the following combinations of quantum...Ch. 7 - Prob. 7.113QPCh. 7 - In a hypothetical universe, the quantum numbers...Ch. 7 - The energy required to dissociate the Cl2 molecule...Ch. 7 - The energy required to dissociate the H2 molecule...Ch. 7 - A microwave oven heats by radiating food with...Ch. 7 - Warm objects emit electromagnetic radiation in the...Ch. 7 - Light with a wavelength of 425 nm fell on a...Ch. 7 - Light with a wavelength of 405 nm fell on a...Ch. 7 - Prob. 7.121QPCh. 7 - When an electron is accelerated by a voltage...Ch. 7 - Prob. 7.123QPCh. 7 - The table below is partially completed for...
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