
Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
The element rubidium has two naturally occurring isotopes. The atomic mass of 85 Rb (72.17 percent abundant) is 84.911794 amu. Determine the atomic mass of 87 Rb (27.83 percent abundant) the
Expert Solution

arrow_forward
Step 1
Given : There are two naturally occurring isotopes of element rubidium.
Abundance of isotope 1 i.e 85Rb = 72.17 %
Atomic mass of 85Rb = 84.911794 amu.
Abundance of isotope 1 i.e 87Rb = 27.83 %
And average atomic mass of Rb = 85.4678
Trending nowThis is a popular solution!
Step by stepSolved in 2 steps

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
- An atom has a diameter of 2.50 Å and the nucleus of that atom has a diameter of 6.00 x 10-5 Å. Determine the fraction of the volume of the atom that is taken up by the nucleus. Assume the atom and the nucleus are a sphere. fraction of atomic volume: Calculate the density of a proton, given that the mass of a proton is 1.0073 amu and the diameter of a proton is 1.69 × 10-¹5 density: m. g/cm³arrow_forwardThe planet Zoltan is located in a solar system in the Andromeda galaxy. On Zoltan, the standard unit for the amount of substance is the wog and the standard unit for mass is the wibble. The Zoltanians, like us, chose carbon-12 to define their standard unit for the amount of substance. By definition, one wog of C-12 atoms contains 2.50 x 1021 atoms. It has a mass of exactly 12 wibbles. What is the mass, in wibbles, of 1 wog of nitrogen atoms? What is the mass, in wibbles, of 5.00 x 10-1 wogs of O2? What is the mass, in grams of 1 wog of hydrogen atoms? Expert Solutionarrow_forwardA fictitious element Z has an average atomic mass of 223.67 u.223.67 u. Element Z has two naturally occuring isotopes. The more abundant isotope has an exact mass of 224.29 u224.29 u and a relative abundance of 60.99%.60.99%. Calculate the exact mass of the second isotope.arrow_forward
- Calculated the weighted average of a substance from space. It has an abundance of 30.0% and 70.0% for its two isotopes. The atomic mass for the two isotopes are 111.653amu and 113.665amu, respectively.arrow_forwardA new element Z has been discovered. There are 2 isotopes of this element: Z-121 which has an atomic mass of 121.098, and Z-123 which has an atomic mass of 123.456. If the relative abundance of Z-121 34.5%, what is the average atomic mass of element Z?arrow_forwardThe mass of a neutron is 1.6749×10−24 gg , and the mass of a proton is 1.6726×10−24 gg . What is the total mass of a neutron and a proton?arrow_forward
- A new element Z has been discovered. There are 2 isotopes of this element: Z-121 which has an atomic mass of 121.098, and Z-123 which has an atomic mass of 123.456. If the relative abundance of Z-121 34.5%, what is the average atomic mass of element Z?arrow_forwardAn unknown element has two naturally occurring isotopes. Isotope 1 has a mass of 121.0 amu and an abundance of 55.10%. Isotope 2 has a mass of 123.0 amu. What is the atomic mass of the element?arrow_forwardWhat mass of sulfur would have 4.10 x 1022 atoms of sulfur?arrow_forward
arrow_back_ios
arrow_forward_ios
Recommended textbooks for you
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY

Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning

Chemistry
Chemistry
ISBN:9781259911156
Author:Raymond Chang Dr., Jason Overby Professor
Publisher:McGraw-Hill Education

Principles of Instrumental Analysis
Chemistry
ISBN:9781305577213
Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch
Publisher:Cengage Learning

Organic Chemistry
Chemistry
ISBN:9780078021558
Author:Janice Gorzynski Smith Dr.
Publisher:McGraw-Hill Education

Chemistry: Principles and Reactions
Chemistry
ISBN:9781305079373
Author:William L. Masterton, Cecile N. Hurley
Publisher:Cengage Learning

Elementary Principles of Chemical Processes, Bind...
Chemistry
ISBN:9781118431221
Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. Bullard
Publisher:WILEY