Boron (B; Z=5) has two naturally occurring isotopes. Find the percent abundances of 10B and 11B given the atomic mass of B=10.81 amu, the isotopic mass of 10B = 10.0129 amu, and the isotopic mass of 11B = 11.0093 amu. (Hint: the sum of the fractional abundances is 1. If x = abundance of 10B, then 1-x=abundance of 11B) Atomic Wt = Isotopic Mass 10B(proportion) + Isotopic Mass 11B(proportion)

Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter2: Chemical Compounds
Section: Chapter Questions
Problem 29QRT: Argon has three naturally occurring isotopes: 0.3336% 36Ar, 0.063% 38Ar, and 99.60% 40Ar. Estimate...
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Boron (B; Z=5) has two naturally occurring isotopes. Find the percent abundances of 10B and 11B given the atomic mass of B=10.81 amu, the isotopic mass of 10B = 10.0129 amu, and the isotopic mass of 11B = 11.0093 amu. (Hint: the sum of the fractional abundances is 1. If x = abundance of 10B, then 1-x=abundance of 11B) Atomic Wt = Isotopic Mass 10B(proportion) + Isotopic Mass 11B(proportion)

 

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