CHEMISTRY-TEXT
8th Edition
ISBN: 9780134856230
Author: Robinson
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Question
Chapter 5, Problem 5.131MP
Interpretation Introduction
Interpretation:
The number of photons necessary to raise the temperature of a 350 mL cup of water from 20?C to 95?C needs to be determined. If
- Wavelength = 15.0 cm (used in a microwave oven to irradiate the food)
- The heat needed to raise the temperature of 1.00 g of water by 1.00?C = 4.184
Concept introduction:
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Suppose that the microwave radiation has a wavelength of 12.4 cm. How many photons are required to heat 285 mL of coffee from 25.0 ∘C∘C to 62.0 ∘C∘C? Assume that the coffee has the same density, 0.997 g mL−1, and specific heat capacity, 4.184 J g−1 K−1, as water over this temperature range.
Express the number of photons numerically.
A container with 0.2450.245 L of water is placed in a microwave and radiated with electromagnetic energy with a wavelength of 14.114.1 cm. The temperature of the water rose by 72.172.1 °C. Calculate the number of photons that were absorbed by the water. Assume water has a density of 1.00 g·mL−11.00 g·mL−1 and a specific heat of 4.184 J·g−1·°C−14.184 J·g−1·°C−1.
the microwaves in an oven are of a specific frequency that will heat the water molecules contained in food. (this is why most plastics and glass do not become hot in microwaves; they do not contain water molecules.) This frequency is about 3 X 109 Hz. What is the energy of one phonon in these microwaves? Show calculations
Chapter 5 Solutions
CHEMISTRY-TEXT
Ch. 5 - What is the wavelength in meters of an FM radio...Ch. 5 - Conceptual APPLY 5.2 Two electromagnetic waves are...Ch. 5 - PRACTICE 5.3 The biological effects of a given...Ch. 5 - Prob. 5.4ACh. 5 - Prob. 5.5PCh. 5 - Conceptual APPLY 5.6 Compare the two elements Rb...Ch. 5 - PRACTICE 5.7 The Balmer equation can be extended...Ch. 5 - APPLY 5.8 (a) What is the longest-wavelength line...Ch. 5 - Prob. 5.9PCh. 5 - Prob. 5.10A
Ch. 5 - Give the or bital notation for an electron in an...Ch. 5 - APPLY 5.10 Extend Table 5.2 to show allowed...Ch. 5 - Conceptual PRACTICE 5.13 Give a possible...Ch. 5 - Conceptual APPLY 5.14 How many nodal planes...Ch. 5 - Give the expected ground state electron...Ch. 5 - Conceptual APPLY 5.16 Identify the atoms with the...Ch. 5 - Order the atoms from smallest to largest: Cs,...Ch. 5 - APPLY 5.18 Predict which bond length will be the...Ch. 5 - What percentage of electrical energy is converted...Ch. 5 - Prob. 5.20PCh. 5 - (a) How is the emission spectrum from the...Ch. 5 - PROBLEM 5.19 Mercury vapor is contained inside the...Ch. 5 - PROBLEM 5.20 When electricity is used to add...Ch. 5 - Atomic emission spectra arise from electron...Ch. 5 - PROBLEM 5.22 Three different wavelengths in the...Ch. 5 - Two electromagnetic waves are represented below....Ch. 5 - The following diagram shows the energy levels of...Ch. 5 - Identify each of the following orbitals, and give...Ch. 5 - Where on the blank outline of the periodic table...Ch. 5 - One of the elements shown on the following...Ch. 5 - What atom has the following orbital-filling...Ch. 5 - The following orbital-filling diagram represents...Ch. 5 - Prob. 5.33CPCh. 5 - Which has the higher frequency, red light or...Ch. 5 - Prob. 5.35SPCh. 5 - The Hubble Space Telescope detects electromagnetic...Ch. 5 - Prob. 5.37SPCh. 5 - What is the wavelength in meters of ultraviolet...Ch. 5 - What is the frequency of a microwave with...Ch. 5 - A certain cellular telephone transmits at a...Ch. 5 - Optical fibers allow the fast transmission of vast...Ch. 5 - Calculate the energies of the following waves in...Ch. 5 - The magnetic resonance imaging (MRI) body scanners...Ch. 5 - What is the wavelength in meters of photons with...Ch. 5 - What is the energy of each of the following...Ch. 5 - You’re probably familiar with using Scotch rape...Ch. 5 - Hard wintergreen-flavored candies are...Ch. 5 - Prob. 5.48SPCh. 5 - Photochromic sunglasses, which darken when exposed...Ch. 5 - Prob. 5.50SPCh. 5 - Prob. 5.51SPCh. 5 - The work function of cesium metal is 188 kJ/mol,...Ch. 5 - Prob. 5.53SPCh. 5 - The work function of silver metal is 436 kJ/mol....Ch. 5 - Cesium metal is frequently used in photoelectric...Ch. 5 - Spectroscopy is a technique that uses the...Ch. 5 - Prob. 5.57SPCh. 5 - According to the equation for the Balmer line...Ch. 5 - According to the equation for the Balmer line...Ch. 5 - Calculate the wavelength and energy in kilojoules...Ch. 5 - Calculate the wavelength and energy in kilojoules...Ch. 5 - One series of lines of the hydrogen spectrum is...Ch. 5 - One series of lines of the hydrogen spectrum is...Ch. 5 - Use the Balmer equation to calculate the...Ch. 5 - Prob. 5.65SPCh. 5 - Protons and electrons can be given very high...Ch. 5 - What is the wavelength in meters of a proton...Ch. 5 - What is the de Broglie wavelength in meters of a...Ch. 5 - What is the de Brogue wavelength in meters of a...Ch. 5 - At what speed in meters per second must a 145 g...Ch. 5 - What velocity would an electron (mass=9.111031kg)...Ch. 5 - Use the Heisenberg uncertainty principle to...Ch. 5 - The mass of a helium atom is 40026 amu, and its...Ch. 5 - What is the Heisenberg uncertainty principle, and...Ch. 5 - Why do we have to use an arbitrary value such as...Ch. 5 - What are the four quantum numbers, and what does...Ch. 5 - Tell which of the following combinations of...Ch. 5 - Give the allowable combinations of quantum numbers...Ch. 5 - Give the orbital designations of electrons with...Ch. 5 - Which of the following combinations of quantum...Ch. 5 - Which of the following combinations of quantum...Ch. 5 - What is the maximum number of electrons in an atom...Ch. 5 - What is the maximum number of electrons in an atom...Ch. 5 - Sodium atoms emit light with a wavelength of 330...Ch. 5 - Prob. 5.85SPCh. 5 - Prob. 5.86SPCh. 5 - Assign a set of four quantum numbers to each...Ch. 5 - Assign a set of four quantum numbers for the outer...Ch. 5 - Which of the following is a valid set of four...Ch. 5 - Prob. 5.90SPCh. 5 - Prob. 5.91SPCh. 5 - Prob. 5.92SPCh. 5 - Prob. 5.93SPCh. 5 - Prob. 5.94SPCh. 5 - Prob. 5.95SPCh. 5 - Order the electrons in the following orbitals...Ch. 5 - Order the following elements according to...Ch. 5 - Prob. 5.98SPCh. 5 - Prob. 5.99SPCh. 5 - Which orbital in each of the following pairs is...Ch. 5 - Order the orbitals for a multi electron atom in...Ch. 5 - According to the aufbau principle, which orbital...Ch. 5 - According to the autbau principle, which orbital...Ch. 5 - Give the expected ground-state electron...Ch. 5 - Give the expected ground-state electron...Ch. 5 - Draw orbital-filling diagrams for the following...Ch. 5 - Draw orbital-filling diagrams for atoms with the...Ch. 5 - How many unpaired electrons are present in each of...Ch. 5 - Identify the following atoms. (a) It has the...Ch. 5 - Prob. 5.110SPCh. 5 - Given the sub shells 1s, 2s, 2p, 3s, 3p and 3d,...Ch. 5 - Prob. 5.112SPCh. 5 - Prob. 5.113SPCh. 5 - Take a guess. What do you think is a likely...Ch. 5 - Take a guess. What is a likely ground-state...Ch. 5 - Prob. 5.116SPCh. 5 - Prob. 5.117SPCh. 5 - Prob. 5.118SPCh. 5 - Prob. 5.119SPCh. 5 - Prob. 5.120SPCh. 5 - Prob. 5.121SPCh. 5 - Prob. 5.122SPCh. 5 - Which atom in each of the following pairs has a...Ch. 5 - Orbital energies in single-electron atoms or ions,...Ch. 5 - Like He+ , the Li2+ ion is a single-electron...Ch. 5 - Prob. 5.126MPCh. 5 - Draw orbital-filling diagrams for the following...Ch. 5 - The atomic radii of Y (180 pm) and Li (187 pm) are...Ch. 5 - Prob. 5.129MPCh. 5 - Prob. 5.130MPCh. 5 - Prob. 5.131MPCh. 5 - The amount of energy necessary to remove an...Ch. 5 - Prob. 5.133MPCh. 5 - Prob. 5.134MPCh. 5 - Prob. 5.135MPCh. 5 - A minimum energy of 7.211019J is required to...Ch. 5 - Prob. 5.137MPCh. 5 - An energetically excited hydrogen atom has its...Ch. 5 - Prob. 5.139MP
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.Similar questions
- 6.101 Laser welding is a technique in which a tightly focused laser beam is used to deposit enough energy to weld metal parts together. Because the entire process can be automated, it is commonly used in many large-scale industries, including the manufacture of automobiles. In order to achieve the desired weld quality, the steel parts being joined must absorb energy at a rate of about 104 W/mm2. (Recall that 1 W = 1 J/s.) A particular laser welding system employs a Nd:YAG laser operating at a wavelength of 1.06m ; at this wavelength steel will absorb about 80% of the incident photons. If the laser beam is focused to illuminate a circular spot with a diameter of 0.02 inch, what is the minimum power (in watts) that the laser must emit to reach the 104 W/mm2 threshold? How many photons per second does this correspond to? (For simplicity, assume that the energy from the laser does not penetrate into the metal to any significant depth.)arrow_forwardAn FM radio station broadcasts at a frequency of 101.3 MHz. What is the wavelength, in meters and nanometers, of this radiation?arrow_forwardLight in the infrared portion of the electromagnetic spectrum excites vibrations of certain molecules, causing them to move more rapidly. In this manner, infrared light can be used to heat a substance. If a 1000.-mW, 808-nm laser is used to heat a 50.0-mL sample of water from 22.0 o C to its boiling point, a) how many photons will the water absorb and b) what is the minimum amount of time this will take?arrow_forward
- W 4. (a) A laser emits light that has a frequency of 4.69 X 10¹4 s¹. What is the energy of one photon of this radiation? V (b) If the laser emits a pulse containing 5.0 X 1017 photons of this radiation, what is the total energy of that pulse? (c) If the laser emits 1.3 X 10-2 J of energy during a pulse, how many photons are emitted?arrow_forwardAM radio stations broadcast at frequencies between 530 kHz and 1700 kHz. (1 kHz = 10/s.) For a station broadcasting at 1.51 x 10° kHz, what is the energy of this radio wave? Note that Planck's constant is 6.63 × 10¬34 J. s, and the speed of light is 3.00 x 10° m/s. Energy =arrow_forwardUV Photon. What is the energy (in joules) of an ultraviolet photon with wavelength 120 nm? What is its frequency? (c = 3.00 x 108 m/s; h = 6.674 × 10−11 m3/(kg s2) Hello, I'm taking Astronomy but I know this equation is used in Chemistry, so I was wondering if you could help me- I am having a lot of trouble figuring out how to solve this correctly. Can you please explain how to write out the equations and what each part means. I would really appreciate it. Thank you. Cassondra S.arrow_forward
- A 545 g portion of soup is heated in a microwave oven from 25.0 °C to 90.0 °C, using radiation with a wavelength of 1.55 × 10⁻² m. Assuming the specific heat capacity of the soup is the same as water (4.184 J/ °C･g), how many photons are absorbed by the soup? use sig figarrow_forwardWhat is the energy, in Joules, of a photon that has a frequency of (6.7x10^14)? Note: Planck's constant is 6.63×10-34 J·s.arrow_forwardThe scattering of sunlight by the mixture of gas molecules in air results in the blue color of the sky. Calculate the energy (in Joules) of a single photon of blue light with a frequency of 7.50 × 1014 Hz. (h = 6.626 x 10-34 J•s) |x 10 49 J 2 3 4 5 C 7 8. +/- х 100arrow_forward
- During photosynthesis in a certain plant, eight photons of 670-nm wavelength can cause the following reaction: 6CO2 + 6H2O → C6H12O6 + 6O2During respiration, when the plant metabolizes sugar, the reverse reaction releases 4.9 eV of energy per CO2 molecule. Determine the ratio of the energy released (respiration) to the energy absorbed (photosynthesis), a measure of photosynthetic efficiency.arrow_forwardAn x-ray has a wavelength of 6.88 nm. Calculate the energy of one mole of photons of this radiation in MJ (megajoules).arrow_forwardA 239 g portion of soup is heated in a microwave oven from 25.0°C to 90.0°C, using radiation with a wavelength of 1.55 × 10⁻² m. Assuming the specific heat capacity of the soup is the same as water (4.184 J/°C･g), how many photons are absorbed by the soup?arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Chemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage Learning
Chemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning
Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub Co
Chemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage Learning
Chemistry for Engineering StudentsChemistryISBN:9781337398909Author:Lawrence S. Brown, Tom HolmePublisher:Cengage Learning
Chemistry: Principles and PracticeChemistryISBN:9780534420123Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward MercerPublisher:Cengage Learning
Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Chemistry: Matter and Change
Chemistry
ISBN:9780078746376
Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl Wistrom
Publisher:Glencoe/McGraw-Hill School Pub Co
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning
Chemistry for Engineering Students
Chemistry
ISBN:9781337398909
Author:Lawrence S. Brown, Tom Holme
Publisher:Cengage Learning
Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning
Quantum Mechanics - Part 1: Crash Course Physics #43; Author: CrashCourse;https://www.youtube.com/watch?v=7kb1VT0J3DE;License: Standard YouTube License, CC-BY