Zinc has two isotopes. zn-64 has an atomic mass of, Ask an Expert

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Consider the element Zinc (Zn).

a. If Zinc was designed to have an atomic mass of 100.0amu, what would the atomic mass of Si be?

b. How many atoms would there be in 1.00g of Zinc? How many moles are there in 3048g of Zinc? What is the mass of two million atoms of Zinc?

c. Zinc has two isotopes. Zn-64 has an atomic mass of 63.9292amu and Zn-72 has an atomic mass of 71.9278amu. Its average atomic mass is 65.38amu. Calculate the abundance, in percent, of Zn-64.

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