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2.70 Naturally occurring boron consists of two isotopes: 1°B (19.9%) with an isotopic mass of 10.0129 amu and "B (80.1%) with an isotopic mass of 11.009 31 amu. What is the atomic mass of boron? Check your answer by looking at a periodic table.

2.70 Naturally occurring boron consists of two isotopes: 1°B (19.9%) with an isotopic mass of 10.0129 amu and "B (80.1%) with an isotopic mass of 11.009 31 amu. What is the atomic mass of boron? Check your answer by looking at a periodic table.

Chemistry
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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### Exercise 2.70: Naturally occurring boron consists of two isotopes: \(^{10}\text{B}\) (19.9%) with an isotopic mass of 10.0129 amu and \(^{11}\text{B}\) (80.1%) with an isotopic mass of 11.00931 amu. What is the atomic mass of boron? Check your answer by looking at a periodic table.
Transcribed Image Text:### Exercise 2.70: Naturally occurring boron consists of two isotopes: \(^{10}\text{B}\) (19.9%) with an isotopic mass of 10.0129 amu and \(^{11}\text{B}\) (80.1%) with an isotopic mass of 11.00931 amu. What is the atomic mass of boron? Check your answer by looking at a periodic table.
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