Answers: 2
radioisotope follows:
is produced by 1 mole 
will be = Amount decomposed + Amount left = (0.17 + 0.024)moles =0.194 moles
= Initial amount of the reactant = 0.194
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Asample contains 2.2 g of the radioisotope niobium-91 and 15.4 g of its daughter isotope, zirconium-...
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