26. An element has 2 stable isotopes. The mass of one is 68.9257amu and its abundance is 60.4%. The other isotope has a mass of 70.9249amu. Calculate the average atomic mass of the element and tell which element it is.

Chemistry: An Atoms First Approach
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Chapter5: Stoichiometry
Section: Chapter Questions
Problem 37E: An element consists of 1.40% of an isotope with mass 203.973 u, 24.10% of an isotope with mass...
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26. An element has 2 stable isotopes. The mass of one is 68.9257amu and its abundance is 60.4%. The other isotope has a mass of 70.9249amu. Calculate the average atomic mass of the element and tell which element it is.
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