An element, X, has two isotopes, 35X and 37X, whose respective abundances are 75.77% and 24.23% and masses are 34.9688 amu and 36.9659 amu. Calculate the atomic mass of element X.     37.54 amu     35.45 amu     36.65 amu     34.97 amu

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An element, X, has two isotopes, 35X and 37X, whose respective abundances are 75.77% and 24.23% and masses are 34.9688 amu and 36.9659 amu. Calculate the atomic mass of element X.

   

37.54 amu

   

35.45 amu

   

36.65 amu

   

34.97 amu

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