A hypothetical element X has 3 naturally occurring isotopes: 41.20 % of 21x, with an atomic weight of 21.016 amu, 24.66% of 22x, with an atomic weight of 21.942 amu, and 34.14% of 24X, with an atomic weight of 23.974 amu. On the basis of these data. calculate the average atomic weight of element X. Report your answer to two decimal places. amu

A hypothetical element X has 3 naturally occurring isotopes: 41.20 % of 21x, with an atomic weight of 21.016 amu, 24.66% of 22x, with an atomic weight of 21.942 amu, and 34.14% of 24X, with an atomic weight of 23.974 amu. On the basis of these data. calculate the average atomic weight of element X. Report your answer to two decimal places. amu

Chemistry

10th Edition

ISBN:9781305957404

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

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

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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The element zirconium has five naturally occurring isotopes. The masses (amu) and % abundances of the isotopes are given in the table below. Show your work to determine the average atomic mass. Isotope Mass % Abundance Zr-90 89.9043 51.40 Zr-91 90.9053 11.20 Zr-92 91.9046 17.10 Zr-94 93.9061 17.50 Zr-96 95.9082 2.80
An unknown element is determined to have two naturally occurring isotopes. Isotope 1 is 68.11% abundant and has a mass of 68.925580 amu, and isotope 2 has a mass of 70.9247005 amu. Determine the atomic mass of the unknown element. Express your answer to four significant figures.
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An element has three naturally occurring isotopes with the following masses and abundances: Isotopic Fractional Mass Abundance (ати) 19.992 0.9048 20.994 0.0027 21.991 0.0925 Calculate the atomic weight of this element. What is the identity of the element? Atomic weight amu Element is
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