A theoretical element Z has two stable isotopes. One isotope is 42Z with a mass of 41.96 amu and a natural abundance of 85.15%. The second isotope is 44Z with a mass of 43.98 amu and a natural abundance of 14.85%. What is the average atomic mass of element Z? 42.97 amu 42.26 amu 42.30 amu 43.68 amu

Mass spectrometry is an analytical tool useful for measuring the mass-to-charge ratio (m/z) of one or more molecules present in a sample. These measurements can often be used to calculate the exact molecular weight of the sample components as well. There are four stages in a mass spectrometer which we need to consider, these are – ionization, acceleration, deflection, and detectionWe are given an element Z , having two isotopes ,one isotope is 42Z with a mass of 41.96 amu and a natural abundance of 85.15%. The second isotope is 44Z with a mass of 43.98 amu and a natural abundance of 14.85% . The average atomic mass for Z is : Avg atomic mass=41.96×0.8515+43.98×0.1485Avg atomic mass=35.72+6.53Avg atomic mass=42.26amu Thus option b) is correct.

Answered: A theoretical element Z has two stable isotopes. One isotope is 42Z with a mass of 41.96 amu and a natural abundance of 85.15%. The second isotope is 44Z with a…

Chemistry

10th Edition

ISBN: 9781305957404

Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher: Cengage Learning

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Question

A theoretical element Z has two stable isotopes. One isotope is ⁴²Z with a mass of 41.96 amu and a natural abundance of 85.15%. The second isotope is ⁴⁴Z with a mass of 43.98 amu and a natural abundance of 14.85%. What is the average atomic mass of element Z?