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An Imaginary Element Xz Consists of Two Isotopes Having Masses

Question 24

Multiple Choice

An imaginary element Xz consists of two isotopes having masses of 100.0 amu and 102.0 amu.A sample of Xz was found to contain 75.0% of the 100Xz isotope and 25.0% of the 102Xz.Calculate the atomic weight of Xz.


A) 100.3 amu
B) 100.5 amu
C) 101.0 amu
D) 101.5 amu
E) 101.8 amu

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