dianacflores9856 dianacflores9856

23-12-2022
Physics

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Natural rubidium has the average mass 85. 4678 amu and is composed of isotopes rb-85 (mass = 84. 9117 amu) and rb-87. The ratio of atoms rb-85/rb-87 in natural rubidium is 2. 591. Calculate the mass of rb-87.

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