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8.5 X 10^-5 grams silicon (1mol Si/28.09g)(6.022 X 10^23/1mol)

= 1.8 X 10^18 atoms of silicon

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How many grams of silicon would there be in a sample that contained 9.99 x 1052 atoms?

To calculate the mass of silicon in the sample, you would first convert the number of atoms to moles using Avogadro's number. Then, you would calculate the mass of silicon in grams using the molar mass of silicon (28.0855 g/mol). The final mass would depend on the number of atoms in the sample.


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