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Question

Convert 91.42 grams of zinc to atoms

Answer 1

In order to do this, you need to understand that it is a two-step conversion. You have to convert the grams to moles and moles to atoms using Avagadro's number: 6.022 x 10^23. You will use the atomic mass of zinc to cancel out your gram units. You can find this on the periodic table. Your set-up should look like this:

91.42 g Zn x 1 mole Zn/atomic mass of zinc x Avagadro's number/1 mole of Zn