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OpenStudy (anonymous):
How many grams are in 8.91*10^24 atoms of Xe
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OpenStudy (anonymous):
didn't i show you this the other day? or what that someone else? you use Avogadro's Number to figure out moles 8.91*10^24 atom Xe | 1 mol Xe | 6.022*10^23 Divide The top by bottom which = 14.7957 mols THEN! you have to change moles to grams by using the MM of Xe 14.7957 mol Xe | 131.29 g Xe | 1 mol Xe Times the two top numbers which = 1942.53 or in scientific notation it would = 1.9*10^3
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