Math Problem Statement
There are two stable isotopes of lithium . Their masses are 6.01512 u and 7.016 u and the average atomic mass of lithium is 6.941 u. Given that:
abundance1 = abundance of isotope 1 with mass of 6.01512 u abundance2 = abundance of isotope 2 with mass of 7.016 u
the relationship between the average atomic mass and the individual atomic masses is:
6.941 u = abundance1 ×× 6.01512 u + abundance2 ×× 7.016 u What is the relationship between abundance1 and abundance2?
Choose one:A. abundance1 = abundance2B. abundance1 + abundance2 = 100%C. abundance1 = (7.016 u/6.01512 u) ×× abundance2D. abundance1 + abundance2 = 1
Solution
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Math Problem Analysis
Mathematical Concepts
Weighted Averages
Linear Equations
Formulas
Average atomic mass = (abundance1 × mass1) + (abundance2 × mass2)
abundance1 + abundance2 = 1
Theorems
Conservation of Abundances
Suitable Grade Level
Grades 10-12
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