
Concept explainers
(a)
Interpretation:
The approximate mass of alpha particle is to be stated.
Concept introduction:
The sum of protons and neutrons is known as mass number. The mass number is represented by a symbol

Answer to Problem 7E
The mass of an alpha particle is
Explanation of Solution
Alpha particle is similar to the helium nucleus
The approximate mass of an alpha particle
(b)
Interpretation:
The approximate mass of a beta particle is to be stated.
Concept introduction:
The sum of protons and neutrons is known as mass number. The mass number is represented by a symbol

Answer to Problem 7E
The mass of a beta particle is
Explanation of Solution
A beta particle is similar to an electron
The approximate mass of a beta particle
(c)
Interpretation:
The approximate mass of gamma ray is to be stated.
Concept introduction:
The sum of protons and neutrons is known as mass number. The mass number is represented by a symbol

Answer to Problem 7E
The mass of gamma ray is
Explanation of Solution
Gamma ray is powerful radioactive radiation which has zero mass and zero charge. The symbol used to represent the gamma ray is
The approximate mass of gamma rays
(d)
Interpretation:
The approximate mass of positron is to be stated.
Concept introduction:
The sum of protons and neutrons is known as mass number. The mass number is represented by a symbol

Answer to Problem 7E
The mass of positron is
Explanation of Solution
Positron is the opposite of electrons on the basis of charge. The mass on positron is zero but it contains one positive charge. The symbol used to represent positron is
The approximate mass of positron
(e)
Interpretation:
The approximate mass of a neutron is to be stated.
Concept introduction:
The sum of protons and neutrons is known as mass number. The mass number is represented by a symbol

Answer to Problem 7E
The mass of a neutron is
Explanation of Solution
Neutrons are similar to protons on the basis of charge. The mass of neutron is approximately
The approximate mass of a neutron
(f)
Interpretation:
The approximate mass of a proton is to be stated.
Concept introduction:
The sum of protons and neutrons is known as mass number. The mass number is represented by a symbol

Answer to Problem 7E
The mass of a proton is
Explanation of Solution
Protons are the particles which have mass and charge equal to
The approximate mass of a proton
Want to see more full solutions like this?
Chapter 18 Solutions
Introductory Chemistry: Concepts and Critical Thinking (8th Edition)
- Indicate how to prepare a 10% sodium hydroxide (NaOH) solution to a slightly alkaline pH.arrow_forwardCH, CH CH₂ CH₂ Phytyl side chain 5. What is the expected order of elution of compounds A-D below from a chromatography column packed with silica gel, eluting with hexane/ethyl acetate? C D OHarrow_forwardPlease analze my gel electrophoresis column of the VRK1 kinase (MW: 39.71 kDa). Attached is the following image for the order of column wells and my gel.arrow_forward
- 2.0arrow_forwardWrite the electron configuration of an atom of the element highlighted in this outline of the Periodic Table: 1 23 4 5 6 7 He Ne Ar Kr Xe Rn Hint: you do not need to know the name or symbol of the highlighted element! ☐arrow_forwardCompare these chromatograms of three anti-psychotic drugs done by HPLC and SFC. Why is there the difference in separation time for SFC versus HPLC? Hint, use the Van Deemter plot as a guide in answering this question. Why, fundamentally, would you expect a faster separation for SFC than HPLC, in general?arrow_forward
- A certain inorganic cation has an electrophoretic mobility of 5.27 x 10-4 cm2s-1V-1. The same ion has a diffusion coefficient of 9.5 x 10-6cm2s-1. If this ion is separated from cations by CZE with a 75cm capillary, what is the expected plate count, N, at an applied voltage of 15.0kV? Under these separation conditions, the electroosmotic flow rate was 0.85mm s-1 toward the cathode. If the detector was 50.0cm from the injection end of the capillary, how long would it take in minutes for the analyte cation to reach the detector after the field was applied?arrow_forward2.arrow_forwardPlease solve for the following Electrochemistry that occursarrow_forward
- Commercial bleach contains either chlorine or oxygen as an active ingredient. A commercial oxygenated bleach is much safer to handle and less likely to ruin your clothes. It is possible to determine the amount of active ingredient in an oxygenated bleach product by performing a redox titration. The balance reaction for such a titration is: 6H+ +5H2O2 +2MnO4- à 5O2 + 2Mn2+ + 8H2O If you performed the following procedure: “First, dilute the Seventh Generation Non-Chlorine Bleach by pipetting 10 mL of bleach in a 100 mL volumetric flask and filling the flask to the mark with distilled water. Next, pipet 10 mL of the diluted bleach solution into a 250 mL Erlenmeyer flask and add 20 mL of 1.0 M H2SO4 to the flask. This solution should be titrated with 0.0100 M KMnO4 solution.” It took 18.47mL of the KMnO4 to reach the endpoint on average. What was the concentration of H2O2 in the original bleach solution in weight % assuming the density of bleach is 1g/mL?arrow_forward10.arrow_forwardProper care of pH electrodes: Why can you not store a pH electrode in distilled water? What must you instead store it in? Why?arrow_forward
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781337399074Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningIntroductory Chemistry: An Active Learning Approa...ChemistryISBN:9781305079250Author:Mark S. Cracolice, Ed PetersPublisher:Cengage Learning
- Chemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningChemistry & Chemical ReactivityChemistryISBN:9781133949640Author:John C. Kotz, Paul M. Treichel, John Townsend, David TreichelPublisher:Cengage LearningChemistry: The Molecular ScienceChemistryISBN:9781285199047Author:John W. Moore, Conrad L. StanitskiPublisher:Cengage Learning





