On earth, tin has 10 different stable isotopes. The heaviest, 12Sn makes up 5.80% of naturally occurring tin atoms. How many atoms of 124Sn are present in 34.8 g of a natural sample of tin? Helpful tip: To enter a number in scientific notation, enter 1.0E5 or 1.0e5, for 1.0 x 105 where the E# (or e#) denotes 10 atoms 124Sn has an isotopic mass of 123.905 amu, calculate the mass of this isotope in Considering the sample. Mass

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